Riverside County Municipal Code Ch. 8.32 Fire Code and Wildland-Urban Interface Code

The Board of Supervisors finds the following:

A. Every three years the State of California adopts a new California Fire Code and California Wildland-Urban Interface Code, both as part of the California Building Standards Code, which becomes effective as to Riverside County 180 days after publication by the California Building Standards Commission.

B. The International Fire Code has been published and adopted, as amended, by the California Building Standards Commission into the California Code of Regulations as Title 24, Part 9, titled the California Fire Code.

C. The International Wildland-Urban Interface Code has been published and adopted, as amended, by the California Building Standards Commission into the California Code of Regulations as Title 24, Part 7, titled the California Wildland-Urban Interface Code.

D. Riverside County may establish more restrictive standards reasonably necessary to provide fire protection for life and property because of local climatic, geological or topographical conditions.

E. Riverside County has an arid climate with annual rainfall varying from three (3) inches in Blythe to over thirty-three (33) inches in Pine Cove. The County also experiences annual hot, dry Santa Ana Winds, which contribute to fires spreading quickly throughout the County.

F. A variety of regions exist within Riverside County including deserts, mountains, brush covered wild lands, the Salton Sea and agricultural lands. Additionally, elevations within Riverside County range from three hundred (300) feet below sea level to mountains over ten thousand (10,000) feet. This variety in regions contributes to an increased emergency response time, which necessitates cooperation between local agencies.

G. Riverside County contains a large number of sensitive habitats for various species and vegetation, consists of large open space areas between major urban centers and includes landscapes varying from mountains and hills to valleys and deserts. These conditions impact building and structure location, which impedes emergency access and response.

H. Riverside County extends from Orange County to the State of Arizona and is mixed with congested urban areas, rural lands and wild lands, which increase Riverside County Fire Department response times to emergencies.

I. Two major earthquake faults, the San Andreas Fault and the San Jacinto Fault, bisect Riverside County and numerous minor faults exist throughout it. As a result, a substantial amount of property and persons located in Riverside County are likely to be impacted by earthquakes and will require emergency response and rescue.

J. The topography within Riverside County extends from flat to twenty-five (25) percent slope for habitable land, which causes buildings and structures to be located in unique areas that impact emergency response and access.

K. In addition to earthquakes, a substantial amount of property and persons located in Riverside County is likely to be impacted by landslides, wind erosion, blown sand, flooding and wildfires because of the County's unique climatic, geological and topographical conditions.

L. The additional requirements included herein are necessary to properly protect the health, safety and welfare of the residents and workers of Riverside County.

M. Revenue shortages make it difficult to locate additional fire stations and provide staffing sufficient to control fires in single and multi-story retail, commercial and industrial buildings, making enhanced built-in protection necessary.

N. The sections of the California Fire Code may be referred to by the same number used in said published compilation preceded by the words "Riverside County Fire Code Section" or "Fire Code Section."

O. The sections of the California Wildland-Urban Interface Code may be referred to by the same number used in said published compilation preceded by the words "Riverside County Wildland-Urban Interface Code Section" or "Wildland-Urban Interface Code Section."

(Ord. No. 787.8, § 1, 11-15-2016; Ord. No. 787.9, § 1, 11-5-2019; Ord. No. 787.10, § 1, 12-13-2022; Ord. No. 787.11, § 1, 12-9-2025)

The purpose of this chapter is to adopt the 2025 California Fire Code, California Code of Regulations, Title 24, Part 9, and the 2025 California Wildland-Urban Interface Code, California Code of Regulations, Title 24, Part 7, as amended, to govern the safeguarding of life and property from fire, explosion hazards and hazardous conditions and to regulate the issuance of permits and collection of fees.

(Ord. No. 787.8, § 2, 11-15-2016; Ord. No. 787.9, § 2, 11-5-2019; Ord. No. 787.10, § 2, 12-13-2022; Ord. No. 787.11, § 1, 12-9-2025)

This chapter is adopted pursuant to Health and Safety Code Sections 17958, 17958.5, 17958.7, and 18941.5, which allow a county to adopt modifications or changes to the California Fire Code and the California Wildland-Urban Interface Code that are reasonably necessary because of local climatic, geological and topographical conditions.

(Ord. No. 787.8, § 3, 11-15-2016; Ord. No. 787.9, § 3, 11-5-2019; Ord. No. 787.10, § 3, 12-13-2022; Ord. No. 787.11, § 1, 12-9-2025)

Except as stated in this section or as amended below in Section 8.32.050 of this chapter, all of the provisions and appendices of the 2025 California Fire Code, inclusive of all of the inclusions and exclusions set for in each chapter's matrix, are hereby adopted and shall apply to the unincorporated areas of Riverside County. In addition, the following provisions that are excluded in the 2025 California Fire Code are hereby adopted - Chapter 1, Division II of the California Fire Code is hereby adopted, except that Sections 103.2 and 112.3 are not adopted, and Chapters 3, 25, and Sections, 503, 510.2, 1103.2, and 5707 are adopted.

(Ord. No. 787.8, § 4, 11-15-2016; Ord. No. 787.9, § 4, 11-5-2019; Ord. No. 787.10, § 4, 12-13-2022; Ord. No. 787.11, § 1, 12-9-2025)

A. SCOPE AND GENERAL REQUIREMENTS.

1. Section 101.4 of the California Fire Code is deleted in its entirety and replaced with the following:

101.4 Severability. If any provision, clause, sentence or paragraph of this ordinance or the application thereof to any person or circumstances shall be held invalid, such invalidity shall not affect the other provisions of this ordinance which can be given effect without the invalid provision or application, and to this end, the provisions of this ordinance are hereby declared to be severable.

B. APPLICABILITY.

1. Section 102.5 of the California Fire Code is amended as follows:

102.5 Application of residential code. Where structures are designed and constructed in accordance with the California Residential Code, the provisions of this code shall apply as follows:

1. Construction and design provisions of this code pertaining to the exterior of the structure shall apply including, but not limited to, premises identification, fire apparatus access and water supplies. Where interior or exterior systems or devices are installed, construction permits required by Section 105.6 of this code shall apply.

2. Administrative, operational and maintenance provisions of this code shall apply.

3. Automatic fire sprinkler system requirements of this code shall apply to detached accessory buildings 3,600 square feet or greater in accordance with Section 903.2. The provisions contained in Section 903.2.18 of the California Fire Code or Section R317.5.1 of the California Residential Code may be used for the design of the automatic fire sprinkler system for detached private garages.

4. A new Section 102.13.1 is added to Section 102.13 of the California Fire Code to read as follows:

C. 102.13.1 Application of the California Wildland-Urban Interface Code. Where a conflict exists between the provisions of the Riverside County Fire Code and the California Wildland-Urban Interface Code, the more restrictive provisions shall apply.

D. DUTIES AND POWERS OF THE FIRE CODE OFFICIAL.

1. A new Section 104.1.1 is added to Section 104.1 of the California Fire Code to read as follows:

104.1.1 Authority of the Fire Chief, Chief Deputy and Fire Department.

1. The Fire Chief, Chief Deputy, or their designee, is authorized and directed to enforce all applicable State fire laws and provisions of this ordinance and to perform such duties as directed by the Riverside County Board of Supervisors.

2. The Fire Chief, Chief Deputy, or their designee, is authorized to administer, interpret and enforce this ordinance. Under the Fire Chief', Chief Deputy, or their designee's, direction, the Riverside County Fire Department is authorized to enforce ordinances of Riverside County pertaining to the following:

2.1.

The prevention of fires.

2.2.

The suppression or extinguishment of dangerous or hazardous fires.

2.3.

The storage, use and handling of hazardous materials.

2.4.

The installation and maintenance of automatic, manual and other private fire alarm systems and fire extinguishing equipment.

2.5.

The maintenance and regulation of fire escapes.

2.6.

The maintenance of fire protection and the elimination of fire hazards on land, in buildings, structures and other property, including those under construction.

2.7.

The maintenance of means of egress.

2.8.

The investigation of the cause, origin and circumstances of fire and unauthorized releases of hazardous materials.

3. The following persons are hereby authorized to interpret and enforce the provisions of this ordinance and to make arrests and issue citations as authorized by law:

3.1.

The Unit Chief, Peace Officers and Public Officers of the California Department of Forestry and Fire Protection.

3.2.

The Fire Chief, Peace Officers and Public Officers of the Riverside County Fire Department.

3.3.

The Riverside County Sheriff and any deputy sheriff.

3.4.

The Police Chief and any police officer of any city served by the Riverside County Fire Department.

3.5.

Officers of the California Highway Patrol.

3.6.

Code Officers of the Riverside County Code Enforcement Department.

3.7.

Peace Officers of the California Department of Parks and Recreation.

3.8.

The law enforcement officer of the Federal Bureau of Land Management.

2. Section 104.2 of the California Fire Code is deleted and replaced with the following:

104.2 Determination of compliance. The Fire Code Official shall have the authority to determine compliance with this code, to render interpretations of this code and to develop policies, procedures, guidelines, standards, and information bulletins in order to clarify the application of its provisions. Such interpretations, policies, procedures:

1. Shall be in compliance with the intent and purpose of this code.

2. Shall not have the effect of waiving requirements specifically provided for in this code.

3. Shall be enforceable as part of this code.

4. Sections 104.8 and 104.8.1 of the California Fire Code are deleted in their entirety and replaced with the following:

104.8 Liability. Any liability against Riverside County or any officer or employee for damages resulting from the discharge of their duties shall be as provided by law.

4. A new Section 104.12 is added to Section 104 of the California Fire Code to read as follows:

104.12 Authority of the Fire Chief to close hazardous fire areas. Except upon National Forest Land, the Fire Chief is authorized to determine and announce the closure of any hazardous fire area or portion thereof. Any closure by the Fire Chief for a period of more than fifteen (15) calendar days must be approved by the Riverside County Board of Supervisors within fifteen (15) calendar days of the Fire Chief's original order of closure. Upon such closure, no person shall go in or be upon any hazardous fire area, except upon the public roadways and inhabited areas. During such closure, the Fire Chief shall erect and maintain at all entrances to the closed area sufficient signs giving notice of closure. This section shall not prohibit residents or owners of private property within any closed area, or their invitees, from going in or being upon their lands. This section shall not apply to any entry, in the course of duty, by a peace officer, duly authorized public officer or fire department personnel. For the purpose of this section, "hazardous fire area" shall mean public or private land that is covered with grass, grain, brush or forest and situated in a location that makes suppression difficult resulting in great damage. Such areas are designated on Hazardous Fire Area maps filed with the office of the Fire Chief.

E. FEES.

1. Section 108.2 of the California Fire Code is deleted in its entirety and replaced with the following:

108.2 Schedule of permit fees. Fees for services and permits shall be as set forth in Riverside County Ordinance No. 671.

2. A new Section 108.7 is added to Section 108 of the California Fire Code to read as follows:

108.7 Cost recovery. Pursuant to Health and Safety Code sections 11374.5(b)(1), 13009 et seq., 25514 et seq., 25515 et seq., 25540(a)-(b), 25541, Government Code section 53150 et seq., and all other provisions of law, all costs incurred by the Riverside County Fire Department for the inspection and enforcement of any provision of these Codes, the investigation of any fire, explosion or other hazardous condition, the suppression of fire, the response to a traffic collision or accident, the containment and/or mitigation of a hazardous materials release, and any rescue or rendering of medical or physical aid or assistance, may be charged to any responsible party, any person who violates these Codes or any person who, due to a negligent or unlawful act or omission, is responsible for or requires or causes the emergency response of Riverside County Fire Department. Any expense incurred by the Riverside County Fire Department for such an emergency response shall constitute a debt of such person and shall be collectible by the County in the same manner as in the case of an obligation under contract, express or implied. These provisions shall be applied uniformly against all such persons in violation of a Penal Code, Vehicle Code, Health and Safety Code or other state law statutory violation; only a county official shall have authority to reduce or cancel the debt obligation arising from the incident.

F. MEANS OF APPEALS.

1. Section 112.1 of the California Fire Code is deleted in its entirety and replaced with the following:

112.1 Board of appeals established. The Board of Appeals shall be the County Executive Officer. If he or she determines an outside board is needed, he or she shall designate an outside hearing officer to hear the appeal. The Fire Chief and Chief Deputy shall be notified of any appeal and the Fire Chief, Chief Deputy or their designee shall be in attendance at the appeal hearing. Depending on the subject of the appeal, specialized expertise may be solicited, at the expense of the applicant, for the purpose of providing input to the Appeals Board.

G. VIOLATIONS.

1. Section 113.4 of the California Fire Code is deleted in its entirety and replaced with the following:

113.4 Violation and penalties. It shall be unlawful for any person, firm, corporation or association of persons to violate any provision of this ordinance, or to violate the provisions of any permit granted pursuant to this code or Ordinance No. 787. Punishments and penalties for violations shall be in accordance with Ordinance No. 725 and Health and Safety Code sections 17995 through 17995.5.

H. DEFINITIONS.

1. Section 202, definition of "Fire Chief" in the California Fire Code is deleted in its entirety and replaced with the following:

FIRE CHIEF. The Fire Chief of Riverside County or the Fire Chief's designee.

I. OPEN FLAMES.

1. Section 308.1.7 of the California Fire Code is deleted in its entirety and replaced with the following:

308.1.7 Sky lanterns or similar devices. A person shall not release or cause to be released a sky lantern or similar device.

J. FIRE APPARATUS ACCESS ROADS.

1. A new Section 503.1.2.1 is added to Section 503.1.2 of the California Fire Code to read as follows:

503.1.2.1 Remoteness. Unless otherwise approved, where two fire apparatus access roads are required, they shall be placed a distance apart equal to not less than one-half of the length of the maximum overall diagonal dimension of the property or area to be served, measured in a straight line between accesses.

2. Section 503.2.1 of the California Fire Code is deleted in its entirety and replaced with the following:

503.2.1 Dimensions. Fire apparatus access roads shall have an unobstructed width of not less than 24 feet (7315 mm), exclusive of shoulders, except for approved security gates in accordance with Section 503.6, and an unobstructed vertical clearance of not less than 13 feet 6 inches (4115 mm). For additional requirements or alternatives see Riverside County Fire Department Standards and Policies, as may be amended from time to time.

3. Section 503.2.2 of the California Fire Code is deleted in its entirety and replaced with the following:

503.2.2 Authority. The Fire Code Official shall be the only authority authorized to designate fire apparatus access roads and fire lanes and to modify the minimum fire lane access widths for fire or rescue operations.

4. A new Section 503.6.1 is added to Section 503.6 of the California Fire Code to read as follows:

503.6.1 Automatic opener. New motorized gates shall be provided with means to be automatically opened remotely by emergency vehicle in accordance with Riverside County Fire Department Standards and Policies, as may be amended from time to time.

Exception: Gates serving individual one- and two-family dwelling parcels.

5. A new Section 503.7 is added to Section 503 of the California Fire Code to read as follows:

503.7 Loading areas and passenger drop-off areas. On private properties, where fire apparatus access roads are utilized for loading or unloading or utilized for passenger drop-off or pick-up, an additional eight (8) feet of width shall be added to the minimum required width for the fire apparatus access road.

K. FIRE PROTECTION WATER SUPPLIES.

1. A new Section 507.5.7 is added to Section 507.5 of the California Fire Code to read as follows:

507.5.7 Fire hydrant size and outlets. As determined by the Fire Code Official, fire hydrant sizes and outlets shall be based on the following:

1. Residential Standard - one (1) four (4) inch outlet and one (1) two and half (2 ½) inch outlet.

2. Super Hydrant Standard - one (1) four (4) inch outlet and two (2) two and one-half (2½) inch outlet.

3. Super Hydrant Enhanced - two (2) four (4) inch outlet and one (1) two and one-half (2½) inch outlet.

4. A new Section 507.5.8 is added to Section 507.5 of the California Fire Code to read as follows:

507.5.8 Fire hydrant street marker. Fire hydrant locations shall be visually indicated in accordance with Riverside County Fire Department Guidelines, as may be amended from time to time. Any hydrant marker damaged or removed during the course of street construction or repair shall be immediately replaced by the contractor, developer or person responsible for removal or damage.

L. FIRE COMMAND CENTER.

1. Section 508.1 of the California Fire Code is deleted in its entirety and replaced with the following:

508.1 General. Where required by other sections of this code and in all buildings classified as high-rise buildings by the California Building Code, in all buildings greater than 300,000 square feet (27,870 meters squared), and in Group I-2 occupancies having occupied floors located more than 75 feet above the lowest level of fire department vehicle access a fire command center for fire department operations shall be provided and shall comply with Sections 508.1.1 through 508.1.8.

2. Section 508.1.1 of the California Fire Code is deleted in its entirety and replaced with the following:

508.1.1 Location and access. The fire command center shall be located adjacent to the main lobby and shall be accessible from fire department vehicular access or as approved by the Fire Code Official. The room shall have direct access from the building exterior at the lowest level of fire department access.

3. Section 508.1.3 of the California Fire Code is amended as follows:

508.1.3 Size. The fire command center shall be not less than 0.015 percent of the total building area of the facility served or 200 square feet (19 meters squared) in area, whichever is greater, with a minimum dimension of 0.7 times the square root of the room area or 10 feet (3048 mm), whichever is greater.

Where a fire command center is solely required because a building is greater than 300,000 square feet (27 870 meters squared), the fire command center shall have a minimum size of 96 square feet (9 meters squared) with a minimum dimension of 8 feet (2438 mm) where approved by the Fire Code Official.

M. FIRE PROTECTION AND UTILITY EQUIPMENT IDENTIFICATION AND ACCESS.

1. A new Section 509.2.1 is added to section 509.2 of the California Fire Code to read as follows:

509.2.1 Minimum clearances. A 3-foot (914 mm) clear space shall be maintained around the circumference of exterior fire protection system control valves, or any other exterior fire protection system component that may require immediate access, except as otherwise required or approved.

N. MECHANICAL REFRIGERATION.

1. Section 608.11.1.2 of the California Fire Code is deleted in its entirety and replaced with the following:

608.11.1.2 Manual operation. When required by the Fire Code Official, automatic crossover valves shall be capable of manual operation. The manual valves shall be located in an approved location immediately outside of the machinery room in a secure metal box or equivalent and marked as Emergency Controls.

O. AUTOMATIC SPRINKLER SYSTEMS.

1. Section 903.2 of the California Fire Code is deleted in its entirety and replaced with the following:

903.2 Where required.

1. In all new buildings and structures which are 3,600 square feet or greater, an approved automatic sprinkler system shall be provided regardless of occupancy classification. Where the Sections 903.2.1 - 903.2.21 of the California Fire Code require more restrictive requirements than those listed below, the more restrictive requirement shall take precedence.

2. All existing buildings, except for one- and two-family dwellings, shall be retrofitted with automatic fire sprinklers when a structure exceeds 3,600 square feet and changes are made to the building including any of the following: change of use/occupancy, removal of an existing fire wall as defined by the California Building Code, or additions of 50% or more are made to the original building area and the resulting square footage exceeds 5,000 square feet.

3. One- and two-family dwellings shall have an automatic fire sprinkler system regardless of square footage in accordance with the California Residential Code. Fire sprinkler systems shall be installed in mobile homes, manufactured homes and multifamily manufactured homes with two dwelling units in accordance with Title 25 of the California Code of Regulations.

Exceptions: Unless required elsewhere in this code or the California Building Code, automatic fire sprinkler systems shall not be required for the following:

1. Spaces or areas in telecommunications buildings used exclusively for telecommunications equipment, associated electrical power distribution equipment, batteries not required to have an automatic sprinkler system by Section 1207 for energy storage systems and standby engines, provided that those spaces or areas are equipped throughout with an automatic smoke detection system in accordance with Section 907.2 and are separated from the remainder of the building by not less than 1-hour fire barriers constructed in accordance with Section 707 of the California Building Code or not less than 2-hour horizontal assemblies constructed in accordance with Section 711 of the California Building Code, or both.

2. Detached Group U occupancies used for agricultural purposes constructed in accordance with the California Building Code.

3. Detached non-combustible equestrian arena shade canopies that are open on all sides and used for riding only - no commercial, assembly or storage uses.

4. Non-combustible fueling station canopies not exceeding 10,000 square feet when separated from other buildings by a distance of not less than 50 feet.

5. Detached fabric or non-combustible shade structures that are open on all sides and used to shade playground equipment, temporary storage of vehicles and dining areas with no cooking.

6. Where determined by the Fire Chief that no major life safety hazard exists, and the fuel load does not pose a significant threat to firefighter safety or to other structures or property, automatic fire sprinklers may be exempted.

The following exceptions in the California Fire Code shall not be allowed:

a. Exception in Section 903.2.3.

b. Exception in Section 903.2.11.3.

2. A new Section 903.3.5.3 is added to Section 903.3.5 of the California Fire Code to read as follows:

903.3.5.3 Hydraulically calculated systems. The design of hydraulically calculated fire sprinkler systems shall not exceed 90% of the water supply capacity.

P. COMMERCIAL HOOD AND DUCT SYSTEMS.

1. A new Section 904.2.2.1 is added to Section 904.2.2 of the California Fire Code to read as follows:

904.2.2.1 Activation of the Fire Alarm System. Where a fire alarm signaling system, or a Dedicated Function Fire Alarm System is serving the occupancy where the extinguishing system is located, the actuation of the automatic fire-extinguishing system shall actuate the fire alarm signaling system in accordance with the requirements of NFPA 72. If a fire alarm signaling system, or a Dedicated Function Fire Alarm System is not present, one will be required to be installed to provide monitoring for the automatic fire-extinguishing system.

Q. GENERAL FIRE PROTECTION AND LIFE SAFETY FEATURES.

1. A new Section 3206.4.2 is added to Section 3206.4 of the California Fire Code to read as follows:

3206.4.2 Minimum requirements for client leased or occupant owned warehouses. Designs of an automatic sprinkler system for client leased or occupant owned buildings containing high pile storage shall be based on the requirements of NFPA 13. Unless otherwise approved a Professional Engineer, licensed in the State of California, shall perform a survey of the building to determine commodity classification, storage configuration, building height and other information related to the development of an appropriate sprinkler system design. The engineer shall also make reasonable efforts to meet with the building owner or operator to understand seasonal or customer related fluctuations to the stored commodities, storage height, and configuration. The sprinkler design shall be based on the most demanding requirements determined through the onsite survey and discussions with the building owner or operator. The technical report shall describe the basis for determining the commodity and sprinkler design selection, how the commodities will be isolated or separated, and include references to the design document(s). If a specific fire test is used as the basis of design, a copy of the fire test report shall be provided at the time of plan review.

R. MOBILE FOOD PREPARATION VEHICLES.

1. A new Section 4107 is added to Chapter 41 of the California Fire Code to read as follows:

4107 MOBILE FOOD PREPARATION VEHICLES.

2. New Sections 4107.1 through 4107.2.3 are added to Section 4107 of the California Fire Code to read as follows:

4107.1 General. Mobile food preparation vehicles that are equipped with appliances that produce smoke or grease-laden vapors shall comply with this section.

4107.2 Maintenance. Maintenance of systems on mobile food preparation vehicles shall be in accordance with Sections 4107.2.1 through 4107.2.3.

4107.2.1 Exhaust system. The exhaust system, including hood, grease-removal devices, fans, ducts and other appurtenances, shall be inspected and cleaned in accordance with Section 606.3.

4107.2.2 Fire protection systems and devices. Fire protection systems and devices shall be maintained in accordance with Section 901.6.

4107.2.3 Fuel gas systems. LP-gas containers installed on the vehicle and fuel-gas piping systems shall be inspected annually by an approved inspection agency or a company that is registered with the U.S. Department of Transportation to requalify LP-gas cylinders, to ensure that system components are free from damage, suitable for the intended service and not subject to leaking. CNG containers shall be inspected every 3 years in a qualified service facility. CNG containers shall not be used past their expiration date as listed on the manufacturer's container label. Upon satisfactory inspection, the approved inspection agency shall affix a tag on the fuel gas system or within the vehicle indicating the name of the inspection agency and the date of satisfactory inspection.

S. FIREWORKS DISPLAY.

1. A new Section 5608.2 is added to Section 5608 of the California Fire Code to read as follows:

5608.2 Fallout Area. For aerial shells, the minimum required radius of the fallout area shall be 100 ft/in. (30 480 mm/25 mm) of the internal mortar diameter of the largest aerial shell to be fired, unless otherwise approved.

T. APPENDIX B.

1. A new Section B103.2.1 is added to Section B103.2 of the California Fire Code to read as follows:

B103.2.1 Wildland-Urban Interface Area Subdivisions. The minimum fire flow for any new subdivision or tract constructed within a Wildland-Urban Interface Area shall be 1,500 gallons per minute.

2. Table B105.2 of the California Fire Code is amended as follows:

TABLE B105.2 REQUIRED FIRE-FLOW FOR BUILDINGS OTHER THAN ONE- AND TWO-FAMILY DWELLINGS, GROUP R-3 AND R-4 BUILDINGS AND TOWNHOUSES

For SI: 1 gallon per minute = 3.785 L/m

a The reduced fire-flow shall not be less than 1,000 gallons per minute.

b The reduced fire-flow shall not be less than 1,500 gallons per minute.

U. APPENDIX C.

1. Section C103.1 of the California Fire Code is deleted in its entirety and replaced with the following:

C103.1 Hydrant spacing. Fire apparatus access roads and public streets providing required access to buildings in accordance with Section 503 of the California Fire Code shall be provided with one or more fire hydrants, as determined by Section C102.1. Where more than one fire hydrant is required, the distance between required fire hydrants shall be in accordance with Sections C103.2 and C103.3. Fire hydrants shall be provided at street intersections.

(Ord. No. 787.8, § 5, 11-15-2016; Ord. No. 787.9, § 5, 11-5-2019; Ord. No. 787.10, § 5, 12-13-2022; Ord. No. 787.11, § 1, 12-9-2025)

Except as stated in this section or as amended below in Section 8.32.070 of this chapter, all of the provisions and appendices of the 2025 California Wildland-Urban Interface Code, inclusive of all of the inclusions and exclusions set for in each chapter's matrix, are hereby adopted and shall apply to the unincorporated areas of Riverside County. In addition, the following provisions that are excluded in the 2025 California Wildland-Urban Interface Code - Chapter 1, Division II of the California Wildland-Urban Interface Code are hereby adopted, except that Sections 103.2 and 112.3 are not adopted, and Sections A101 through A102.2, A102.4, A104, A105.1, A105.4 through A105.4.2, A106 through A106.2 and A107 through A107.5, A108.3 are adopted.

(Ord. No. 787.11, § 1, 12-9-2025)

A. Applicability.

1. A new Section 102.4.1.1 is added to Section 102.4.1 of the California Wildland-Urban Interface Code to read as follows:

102.4.1.1 Application of the California Wildland-Urban Interface Code. Where a conflict exists between the provisions of the Riverside County Fire Code and the California Wildland-Urban Interface Code, the more restrictive provisions shall apply.

B. Duties and powers of the Code Official.

1. A new Section 104.1.1 is added to Section 104.1 of the California Wildland-Urban Interface Code to read as follows:

104.1.1 Authority of the Fire Chief, Chief Deputy, and Fire Department.

1. The Fire Chief, Chief Deputy, or their designee is authorized and directed to enforce all applicable State fire laws and provisions of this ordinance and to perform such duties as directed by the Riverside County Board of Supervisors.

2. The Fire Chief, Chief Deputy, or their designee is authorized to administer, interpret and enforce this ordinance. Under the Fire Chief, Chief Deputy, or their designee's direction, the Riverside County Fire Department is authorized to enforce ordinances of Riverside County pertaining to the following:

2.1.

The prevention of fires.

2.2.

The suppression or extinguishment of dangerous or hazardous fires.

2.3.

The storage, use and handling of hazardous materials.

2.4.

The installation and maintenance of automatic, manual and other private fire alarm systems and fire extinguishing equipment.

2.5.

The maintenance and regulation of fire escapes.

2.6.

The maintenance of fire protection and the elimination of fire hazards on land, in buildings, structures and other property, including those under construction.

2.7.

The maintenance of means of egress.

2.8.

The investigation of the cause, origin and circumstances of fire and unauthorized releases of hazardous materials.

3. The following persons are hereby authorized to interpret and enforce the provisions of this ordinance and to make arrests and issue citations as authorized by law:

3.1.

The Unit Chief, Peace Officers and Public Officers of the California Department of Forestry and Fire Protection.

3.2.

The Fire Chief, Peace Officers and Public Officers of the Riverside County Fire Department.

3.3.

The Riverside County Sheriff and any deputy sheriff.

3.4.

The Police Chief and any police officer of any city served by the Riverside County Fire Department.

3.5.

Officers of the California Highway Patrol.

3.6.

Code Officers of the Riverside County Code Enforcement Department.

3.7.

Peace Officers of the California Department of Parks and Recreation.

3.8.

The law enforcement officer of the Federal Bureau of Land Management.

2. Section 104.2 of the California Wildland-Urban Interface Code is deleted and replaced with the following:

104.2 Determination of compliance. The Fire Code Official shall have the authority to determine compliance with this code, to render interpretations of this code and to develop policies, procedures, guidelines, standards, and information bulletins in order to clarify the application of its provisions. Such interpretations, policies, procedures:

1. Shall be in compliance with the intent and purpose of this code.

2. Shall not have the effect of waiving requirements specifically provided for in this code.

3. Shall be enforceable as part of this code.

4. Sections 104.8 and 104.8.1 of the California Wildland-Urban Interface Code are deleted in their entirety and replaced with the following:

104.8 Liability. Any liability against Riverside County or any officer or employee for damages resulting from the discharge of their duties shall be as provided by law.

C. Permits.

1. Section 105.2 of the California Wildland-Urban Interface Code is deleted in its entirety and replaced with the following:

105.2 Permits Required. Unless otherwise exempted, buildings or structures regulated by this code shall not be erected, constructed, altered, repaired, moved, removed, converted, demolished or changed in use or occupancy unless a separate permit for each building or structure has first been obtained from the code official.

For buildings or structures erected for temporary uses, see Section A108.3.

Where required by the code official, a permit shall be obtained for the following activities, operations, practices or functions within a wildland-urban interface area:

1. Automobile wrecking yard.

2. Candles and open flames in assembly areas.

3. Explosives or blasting agents.

4. Fireworks.

5. Flammable or combustible liquids.

6. Hazardous materials.

7. Liquefied petroleum gases.

8. Landscape and fuel modification zones.

9. Lumberyards.

10. Motor vehicle fuel-dispensing stations.

11. Open burning.

12. Pallet Yards.

13. Pyrotechnical special effects material.

14. Tents, canopies and temporary membrane structures.

15. Tire storage.

16. Welding and cutting operations.

D. Fees.

1. Section 108.2 of the California Wildland-Urban Interface Code is deleted in its entirety and replaced with the following:

108.2 Schedule of permit fees. Fees for services and permits shall be as set forth in Riverside County Ordinance No. 671.

2. A new Section 108.7 is added to Section 108 of the California Wildland-Urban Interface Code to read as follows:

108.7 Cost recovery. Pursuant to California Health and Safety Code Sections 11374.5(b)(1), 13009 et seq., 25514 et seq., 25515 et seq., 25540(a), 25541(a)-(b), California Government Code section 53150 et seq., and all other provisions of law, all costs incurred by the Riverside County Fire Department for the inspection and enforcement of any provision of these Codes, the investigation of any fire, explosion or other hazardous condition, the suppression of fire, the response to a traffic collision or accident, the containment and/or mitigation of a hazardous materials release, and any rescue or rendering of medical or physical aid or assistance, may be charged to any responsible party, any person who violates these Codes or any person who, due to a negligent or unlawful act or omission, is responsible for or requires or causes the emergency response of Riverside County Fire Department. Any expense incurred by the Riverside County Fire Department for such an emergency response shall constitute a debt of such person and shall be collectible by the County in the same manner as in the case of an obligation under contract, express or implied. These provisions shall be applied uniformly against all such persons in violation of a Penal Code, Vehicle Code, Health and Safety Code or other state law statutory violation; only a County official shall have authority to reduce or cancel the debt obligation arising from the incident.

E. Inspection and enforcement.

1. Section 109.3.7 of the California Wildland-Urban Interface Code is deleted in its entirety and replaced with the following:

109.3.7 Violation and penalties. It shall be unlawful for any person, firm, corporation or association of persons to violate any provision of this ordinance, or to violate the provisions of any permit granted pursuant to this code or Ordinance No. 787. Punishments and penalties for violations shall be in accordance with Ordinance No. 725, Health and Safety Code Sections 17995 through 17995.5 and Government Code section 51185.

F. Definitions.

1. Section 202, definition of "Fire Chief" in the California Wildland-Urban Interface Code is deleted in its entirety and replaced with the following:

FIRE CHIEF. The Fire Chief of Riverside County or the Fire Chief's designee.

G. Wildland-Urban Interface Area Designations.

1. Section 302.1.1 is added to Section 302.1 of the California Wildland-Urban Interface Code to read as follows:

302.1.1 Designation of Fire Hazard Severity Zones. The Riverside County Board has adopted the recommendations of the State Fire Marshal made pursuant to Government Code Section 51178 and designated those areas within the County as moderate, high, and very high fire hazard severity zones as shown on the Local Responsibility Area Fire Hazard Severity Zones Maps published by the Office of the State Fire Marshal. The Maps have been adopted under Riverside County Ordinance No. 999.

H. Special building construction regulations.

1. Section 501.1 of the California Wildland-Urban Interface shall be amended as follows:

501.1 Scope. Buildings and structures in a wildland-urban interface area shall be constructed in accordance with the California Building Code and this code. For the purpose of this Chapter, a wildland-urban interface area shall be defined as a geographical area identified by the state as a "Fire Hazard Severity Zone" in accordance with the Public Resources Code Sections 4201 through 4204 and Government Code Sections 51175 through 51189, and other areas designated by the enforcing agency to be at a significant risk from wildfires, and shall include those areas designated by Ordinance No. 999 as moderate, high, and very high fire hazard severity zones based on recommendations from the State Fire Marshal pursuant to Government Code Section 51178.

Exceptions:

1. Group U accessory structures not exceeding 120 square feet (11 square meters) in floor area where located not less than 50 feet (15,240 mm) from applicable buildings.

2. Group U agricultural buildings not less than 50 feet (15,240 mm) from applicable buildings.

I. Fire protection plans.

1. Section 602.1 of the California Wildland-Urban Interface Code is amended as follows:

602.1 General. A fire protection plan shall be submitted to the Fire Code Official for any proposed subdivision of land or building project. The fire protection plan shall be prepared to determine the acceptability of fire protection and life safety measures designed to mitigate wildfire hazards presented for the property under consideration.

The fire protection plan shall be prepared by a registered design professional, qualified landscape architect, qualified fire safety specialist or similar specialist acceptable to the code official and shall analyze the wildfire risk of the building, project, premises or region to recommend necessary changes.

Submittal of a preliminary fire protection plan shall be required prior to the submission of a final fire protection plan.

Exception: A single-family dwelling (Group R-3 Occupancy) when located on an existing legal parcel.

2. Section 602.3.2 of the California Wildland-Urban Interface Code is amended as follows:

602.3.2 Final Fire Protection Plan. Final fire protection plan shall include items listed in Section 602.3.1 and the following:

1. A map identifying all proposed plants in the fuel modification zones with a legend that includes a symbol for each proposed plant species. The plan shall include specific information on each species proposed, including but not limited to:

1.1.

The plant life-form;

1.2.

The scientific and common name; and

1.3.

The expected height and width for mature growth.

2. Identification of irrigated and non-irrigated zones.

3. Requirements for vegetation reduction around emergency access and evacuation routes.

4. Identification of existing vegetation proposed to remain.

5. Identification of points of access for equipment and personnel to maintain vegetation in common areas.

6. Methods and timetables for controlling, changing, or modifying areas on the property.

7. Legally binding statements regarding community responsibility for maintenance of fuel modification zones.

8. Legally binding statements to be included in covenants, conditions and restrictions regarding property owner responsibilities for vegetation maintenance.

J. Vegetation plan.

1. Section 603.1 of the California Wildland-Urban Interface Code is amended as follows:

603.1 General. Planting of vegetation for new and replacement landscaping shall be selected to reduce vegetation in proximity to a structure and to maintain vegetation as it matures.

2. Section 603.3 of the California Wildland-Urban Interface Code is amended as follows:

603.3 Landscape and Fuel Modification plans. Landscape and Fuel Modification plans shall be submitted for any project located in a Wildland-Urban Interface Area. The landscape and Fuel Modification plan shall include development and maintenance requirements for the vegetation management zone adjacent to structures and roadways, and to provide significant fire hazard reduction benefits for public and firefighting safety.

3. Section 603.3.1 of the California Wildland-Urban Interface Code is amended as follows:

603.3.1 Contents. Landscape plans shall contain the following:

1. Delineation of the 5-foot (1524 mm) (Zone 0), 30-foot (9144 mm) (Zone 1) and 100-foot (30 480 mm) (Zone 2) fuel management zones from all structures.

2. Identification of existing vegetation to remain and proposed new vegetation.

3. Identification of irrigated areas.

4. A plant legend with both botanical and common names, and identification of all plant material symbols.

5. Identification of ground coverings within the 30-foot (9144 mm) zone.

K. Maintenance of defensible space.

1. Section 604.1 of the California Wildland-Urban Interface Code is amended as follows:

604.1 General. Vegetation and fuels shall be managed to reduce the severity of potential exterior wildfire exposure to buildings and to reduce the risk of fire spreading to buildings as required by applicable laws and regulations.

2. Section 604.3 of the California Wildland-Urban Interface Code is amended as follows:

604.3 Requirements. Vegetation and fuels around all buildings and structures shall be maintained in accordance with the following laws and regulations:

1. Public Resources Code Section 4291.

2. California Code of Regulations, Title 14, Division 1.5, Chapter 7, Subchapter 3, Article 3, Section 1299.03.

3. Government Code Section 51182.

4. California Code of Regulations, Title 19, Division 1, Chapter 1, Subchapter 1, Article 3, Section 3.07.

5. The requirements of Appendix A of Section 7 of this ordinance and Riverside County Fire Department Guidelines.

6. Section 604.3.1 is added to Section 604.3 of the California Wildland-Urban Interface Code to read as follows:

604.3.1 Retroactivity. When required by the Fire Code Official, or State Law, existing Defensible Space/Fuel Modification Zones (FMZ) shall require retrofitting, including thinning and/or removal of plants, trees, and vegetation, to meet this Code or State Law. Upon notification by the Fire Code Official, and when approved, work to bring an existing Defensible Space and FMZ into compliance with this Code, may be done over a two to four (2-4) year period as determined by the Fire Code Official. A compliance plan prepared by the property owner may be requested for review and approval by the Fire Code Official.

4. Section 604.6 is added to the California Wildland-Urban Interface Code to read as follows:

604.6 Clearance of brush, vegetative growth, and combustible material from improved parcels. All improved parcels declared a Public Nuisance shall be cleared entirely of combustible material. If the Fire Code Official determines this impractical, the provisions of Section 604.7 may be used.

5. Section 604.7 is added to the California Wildland-Urban Interface Code to read as follows:

604.7 Clearance of fuels or vegetative growth from structures. Clearance of fuels and vegetative growth from structures shall be per sections 604.7.1 through 604.7.3 of this code.

6. Section 604.7.1 is added to the California Wildland-Urban Interface Code to read as follows:

604.7.1 Structures. Any person owning, leasing, controlling, operating, or maintaining any Building or structure in, upon, or adjoining any FHSZ, governed by this section, and any person owning, leasing, or controlling any land adjacent to such Buildings, shall at all times maintain around and adjacent to such Building, an effective firebreak made by removing and clearing away, all combustible material on their property for a distance not less than 100 feet from all portions of the Building.

Distances may be increased by the Fire Code Official due to a site-specific analysis based on local conditions and when required, based on a Fire Protection Plan. This section shall not apply to single specimens or stands of protected species of trees, Ornamental Landscape or similar plants used in landscaping and ground covers, that are well-pruned, maintained, and spaced, and do not form a means of rapidly transmitting fire from other nearby vegetation to a structure or from a structure to other nearby vegetation or to interrupt the advance of embers toward a structure.

7. Section 604.7.2 is added to the California Wildland-Urban Interface Code to read as follows:

604.7.2 Timing for New Buildings and additions to Existing Buildings. The provisions of Section 604.7 shall be completed prior to vertical construction of any New Building or addition to an Existing Building.

8. Section 604.7.3 is added to the California Wildland-Urban Interface Code to read as follows:

604.7.3 Photovoltaic Systems. The clearance requirements around freestanding photovoltaic systems and equipment shall comply with the following:

1. A minimum 10-foot clearance for clusters of panels not exceeding 1,500 square feet of combined panel area.

2. A minimum of 30-foot clearance for clusters of panels greater than 1,500 square feet of combined panel area.

3. Clusters shall be separated by a minimum of 20 feet.

4. Panels and clusters shall be not located within 30 feet of any Building subject to clearance requirements of Section 604 unless the clearance requirements of Section 604 are provided as measured from the perimeter of the panel or cluster.

5. Section 604.8 is added to the California Wildland-Urban Interface Code to read as follows:

604.8 Defensible Space clearance zones and requirements. The required 100-foot Defensible Space clearance is identified in three (3) distinct zones: Zone 0, 1, and 2.

10. Section 604.8.1 is added to the California Wildland-Urban Interface Code to read as follows:

604.8.1 Requirements. Defensible Space shall be in accordance with the requirements of Appendix A of this code, Riverside County Fire Department Guidelines and the specific requirements for each zone listed in Sections 604.8.2 through 604.8.5.

11. Section 604.8.2 is added to the California Wildland-Urban Interface Code to read as follows:

604.8.2 Zone 0 purpose and location. Zone 0 reduces the likelihood of structure ignition by reducing the potential for direct ignition of the structure from flame contact, by embers that accumulate at the base of a wall, and/or indirect ignitions when embers ignite vegetation, vegetative debris, or other combustible materials located close to the structure that result in either a radiant heat and/or a direct flame contact exposure to the structure.

Zone 0 is the horizontal area within the first five (5) feet around the structure, including stairs, balconies, attached or adjacent decks, and outbuildings. Zone 0 is measured from the edge of a structure, attached or adjacent decks, patio covers, balconies, and floor projections above-grade. Zone 0 also includes the area on the roof of a building, and underneath and on top of attached decks, patio covers, balconies, and stair landings.

Advisory Notice: Riverside County Fire Department has local Zone 0 requirements currently in effect for new Buildings and additions to existing Buildings. New State regulations for Zone 0 are currently under development by the State Board of Forestry and Fire Protection. Any State regulation more restrictive than this ordinance shall apply. This may require thinning and/or removal of plants, trees, and vegetation to meet State Law and regulations.

12. Section 604.8.2.1 is added to the California Wildland-Urban Interface Code to read as follows:

604.8.2.1 Non-Combustible Zone 0 for New Buildings, additions to Existing Buildings, and new or replacement landscape. Fuels, including Combustible Materials and vegetation, are prohibited in Zone 0 for all New Buildings, additions to Existing Buildings, installation of new landscape, and refurbishment of existing landscape areas.

The application date of Section 604.8.2.1 shall be the later application date when any of the following occur:

1. Fire Department Clearance for a New Building or addition to an Existing Building.

2. Building permit for a New Building or addition to an Existing Building.

3. Landscape plans submitted for Riverside County Fire Department review.

4. Replacement of landscape when landscape plans are not required.

5. Section 604.8.2.2 is added to the California Wildland-Urban Interface Code to read as follows:

604.8.2.2 Additional requirements in Zone 0.

1. New and existing tree canopies are prohibited within 10 feet of New Buildings, including the addition portion to Existing Buildings.

Exception: Existing protected oak trees shall be trimmed to provide a minimum 5-foot clearance above the roof and 5 feet to the side of any New Building, or the addition portion to an Existing Building.

2. Landscaped roofs are prohibited.

3. Vegetation underneath decks is prohibited.

4. Other Combustible Materials underneath any deck, not part of the deck structure itself, shall be removed.

5. Artificial or synthetic grass is prohibited within Zone 0.

6. Vines and climbing plants are not allowed on structures, including decks, patio/shade structures, and any fences within 5 feet of a Building.

7. Combustible mulch and wood chips are prohibited.

8. Firewood is prohibited.

9. All fencing and gates shall be non-combustible. See Section 604.11.

10. Section 604.8.2.3 is added to the California Wildland-Urban Interface Code to read as follows:

604.8.2.3 Zone 0 requirements for Existing Buildings.

15. Section 604.8.2.3.1 is added to the California Wildland-Urban Interface Code to read as follows:

604.8.2.3.1 Zone 0 restrictions. The following requirements apply within Zone 0 for all Existing Buildings with landscape installed prior to January 1, 2026:

1. No combustible landscape mulch or wood chips.

2. No firewood.

3. No vegetation underneath decks.

4. Other Combustible Materials underneath any deck, not part of the deck structure itself, shall be removed.

5. Roofs and gutters on Buildings shall be maintained free of any leaves, needles, or other vegetative Combustible Materials.

6. The vertical clearance distance for trees and vegetation above any roof shall be not less than 3 feet.

7. A minimum 3-foot clearance of trees and vegetation shall be provided to the side and above any eave or roof projection from the exterior wall of a Building. A minimum 3-foot clearance of trees and vegetation shall be provided below any eave or roof projection. This requirement also applies to any patio cover or other Building projections.

8. New trees are not allowed.

9. New or replacement landscaping shall comply with Sections 604.8.1, 604.8.2.1, and 604.8.2.2.

10. Section 604.8.3 is added to the California Wildland-Urban Interface Code to read as follows:

604.8.3 Zone 1 purpose and location. Zone 1 reduces the likelihood of fire burning directly to the structure. This is accomplished by modifying Fuels and creating a discontinuity between planting groups that limits the pathways for fire to burn to the structure and reduces the potential for near-to-building ember generation and radiant heat exposures. An additional purpose of this zone is to provide a defendable area for fire personnel to stage and take direct action.

Zone 1 is the area within 5-30 feet of structures and decks, with slopes not greater than 20 percent; 5-50 feet from Buildings and decks, when slopes are greater than 20 percent.

17. Section 604.8.3.1 is added to the California Wildland-Urban Interface Code to read as follows:

604.8.3.1 Requirements and allowable items. This is a minimal planting zone which includes very limited trees of a fire-smart type with additional spacing provided. Plants and other vegetation shall be in accordance with Appendix A of this code and Riverside County Fire Department Guidelines.

18. Section 604.8.4 is added to the California Wildland-Urban Interface Code to read as follows:

604.8.4 Zone 2 purpose and location. Zone 2 is designed to reduce the potential behavior of an oncoming fire in such a way as to drop an approaching fire from the crown of trees to the ground, reducing the flame heights, and the potential for ember generation and radiant heat exposure to structures. Additional benefits of the Zone 2 include facilitating direct defense actions and improving the function of Zones 0 and 1.

Zone 2 is the area from the outer edge of Zone 1 to 100 feet from structures and decks.

19. Section 604.8.4.1 is added to the California Wildland-Urban Interface Code to read as follows:

604.8.4.1 Requirements and allowable items. Plants and other vegetation shall be in accordance with Appendix A of this code and Riverside County Fire Department Guidelines.

20. Section 604.8.4.2 is added to the California Wildland-Urban Interface Code to read as follows:

604.8.4.2 Spacing. Spacing of vegetation and trees at the outer edge of Zone 2 shall be based upon the height of the vegetation within Zone 2 or the adjacent area beyond the 100-foot zone, whichever provides for the greater spacing. This may require clearance outside the 100-foot zone or setting back vegetation and trees within Zone 2 away from the 100-foot line.

21. Section 604.8.5 is added to the California Wildland-Urban Interface Code to read as follows:

604.8.5 General requirements for Zone 0, 1, and 2.

22. Section 604.8.5.1 is added to the California Wildland-Urban Interface Code to read as follows:

604.8.5.1 Dead and dying vegetation. All dead or dying grass, plants, shrubs, trees, branches, leaves, weeds, and tree needles shall be removed.

23. Section 604.8.5.2 is added to the California Wildland-Urban Interface Code to read as follows:

604.8.5.2 Mulch and wood chips within Zones 1 and 2. Use of combustible Mulch and wood chips shall be in accordance with the requirements Riverside County Fire Department Guidelines.

24. Section 604.8.5.3 is added to the California Wildland-Urban Interface Code to read as follows:

604.8.5.3 Firewood. See Section 607.

25. Section 604.8.5.4 is added to the California Wildland-Urban Interface Code to read as follows:

604.8.5.4 Clearance from chimney, stovepipe. Any portion of a tree or shrub that extends within 10 feet horizontally or vertically of a chimney outlet or stovepipe outlet shall be removed.

26. Section 604.8.5.5 is added to the California Wildland-Urban Interface Code to read as follows:

604.8.5.5 Trees. New trees shall be planted and maintained so that the tree's drip line at maturity is a minimum of 10 feet from any combustible structure.

27. Section 604.8.5.5.1 is added to the California Wildland-Urban Interface Code to read as follows:

604.8.5.5.1 Tree spacing. The horizontal distance between crowns of new trees and crowns of adjacent trees shall not be less than 20 feet in Zone 1 and not less than 10 feet in Zone 2. Separation distance may be increased for slopes exceeding 20 percent. Required spacing is measured between trees at maturity.

28. Section 604.8.5.5.2 is added to the California Wildland-Urban Interface Code to read as follows:

29. 604.8.5.5.2 Ground clearance of trees. Trees exceeding 6 feet in height shall be limbed up from the ground 6 feet or ⅓ the height of the tree, whichever is less.

Exception: Fruit trees when approved by the Fire Code Official.

30. Section 604.8.5.5.3 is added to the California Wildland-Urban Interface Code to read as follows:

604.8.5.5.3 Ground cover under tree canopy. When approved ground cover and shrubs are located underneath trees, the vertical clearance to the lowest branch of the tree canopy shall not be less than three times the height of the ground cover or shrub under or adjacent to the tree. The horizontal clearance shall be 3 feet from the trunk of the tree.

31. Section 604.8.5.6 is added to the California Wildland-Urban Interface Code to read as follows:

604.8.5.6 Continuous tree canopies.

32. Section 604.8.5.6.1 is added to the California Wildland-Urban Interface Code to read as follows:

604.8.5.6.1 New Structures. Continuous tree canopies are not allowed. Tree spacing shall be in accordance with Riverside County Fire Department…

33. Section 604.8.5.6.2 is added to the California Wildland-Urban Interface Code to read as follows:

604.8.5.6.2 Existing Structures. Continuous tree canopies may be allowed as determined by the Fire Code Official but will require the complete removal of any understory and smaller trees to meet requirements for a shaded fuel zone. Any remaining trees shall be limbed up a minimum of 12 feet from the ground or ⅓ the tree height, whichever is less. The intent is to not allow a crown (canopy) fire to spread unchecked to a structure and to bring any crown fire down to the ground level prior to Zone 1.

34. Section 604.8.5.7 is added to the California Wildland-Urban Interface Code to read as follows:

604.8.5.7 Grasses. Natural or annual grasses shall be mowed to a maximum height of 4-inch stubble with clippings removed.

35. Section 604.9 is added to the California Wildland-Urban Interface Code to read as follows:

604.9 Fire protection equipment and utilities. The clearance requirements of Sections 604.7 and 604.8 shall apply to communication site towers and their support Buildings; required fire protection water supplies, including water tanks, water supply pumps, and pump houses; and any other utility Structure as required by the Fire Code Official. The Fire Code Official may consider a reduced distance, not less than 30 feet, for communication site towers, water tanks, and Structures with no interior space, based upon a site risk assessment. Also see Appendix A.

36. Section 604.10 is added to the California Wildland-Urban Interface Code to read as follows:

604.10 Planting vegetation under or adjacent to energized electrical lines. No vegetation shall be planted under or adjacent to energized power lines that, at maturity, will grow within 10 feet of the energized conductors.

37. Section 604.11 is added to the California Wildland-Urban Interface Code to read as follows:

604.11 Fencing.

38. Section 604.11.1 is added to the California Wildland-Urban Interface Code to read as follows:

604.11.1 Scope. This section only applies to fences, including gates within the fencing, within 5 feet of Building(s), including Decks, (Zone 0) that are in an applicable Fire Hazard Severity Zone req by Chapter 6 of this code.

39. Section 604.11.2 is added to the California Wildland-Urban Interface Code to read as follows:

604.11.2 New fencing. New fencing and gates shall be constructed of a non-combustible material.

40. Section 604.11.3 is added to the California Wildland-Urban Interface Code to read as follows:

604.11.3 Existing fencing. Fencing installed prior to January 1, 2026, may remain.

Exception: The entire fencing not parallel and within 5 feet of the Building, including gates within the fencing, shall be constructed of a non-combustible material when any portion of the existing fencing within 5 feet is being replaced. Fencing beyond 5 feet from the Building is not required to be replaced with non-combustible material.

L. Storage of firewood and combustible materials.

1. Section 607.1 of the California Wildland-Urban Interface Code is amended to read as follows:

607.1 General. Firewood and combustible materials shall not be stored in unenclosed spaces beneath Buildings or Structures, or on Decks or under eaves, canopies, or other projections or overhangs. Firewood piles shall be located 30 feet (9144 mm) or more from structures unless completely covered by a fire-resistant material. Exposed wood piles located within the defensible space shall have a minimum clearance of 10 feet (3048 mm) down to bare mineral soil in all directions. Firewood shall not be stored within Zone 0.

2. Section 607.1.1 of the California Wildland-Urban Interface Code is amended to read as follows:

607.1.1 Combustible Materials. Combustible Materials, other than vegetation, stored within Zones 1 and 2 shall not be stored so as to pose a hazard to any Building. Piles shall not exceed 100 square feet of area and a maximum height of 10 feet. Piles shall be separated by a minimum of 20-foot clear area.

3. Section 607.2 of the California Wildland-Urban Interface Code is amended to read as follows:

607.2 Storage for off-site use. Firewood and Combustible Materials not for consumption on the premises shall not be stored within Zones 0, 1, and 2. See Appendix A for storage requirements.

M. Building siting and setbacks.

1. Section 608.1.1 is added to the California Wildland-Urban Interface Code to read as follows:

608.1.1 Restricted development setbacks. New Structures and additions to existing Structures shall not be constructed less than 100 feet from any protected habitat, whether on the same or adjacent Parcels, where the 100-foot Defensible Space required under Section 604.7 cannot be provided, unless an alternate method of construction and protection is provided that can ensure the safety of the Structure and emergency responders as approved by the Fire Code Official. Protected habitat includes lands restricted from brush clearance or modification due to Federal or State listed endangered species. Protected habitat does not include sensitive habitat areas.

2. Section 608.2 of the California Wildland-Urban Interface Code is amended to read as follows:

608.2 General. All parcels shall provide a minimum 30-foot (9144 mm) setback for all buildings from property lines and the center of a road, except as provided for in Section 608.2.1. [14 CCR § 1276.01(a)] This section applies to new Tract and Parcel maps, new Buildings, and additions to Existing Buildings.

3. Section 608.2.1 of the California Wildland-Urban Interface Code is amended to read as follows:

608.2.1 Setback reduction. A reduction in the minimum setback shall be based upon practical reasons, which may include but are not limited to, parcel dimensions or size; topographic limitations; Development density requirements or other Development patterns that promote low-carbon emission outcomes; sensitive habitat or other site constraints, and shall provide for an alternative method to reduce structure-to-structure ignition by incorporating a combination of features such as, but not limited to:

1. Non-combustible block walls or fences; or

2. Non-combustible material extending 5 feet (1524 mm) horizontally from the furthest extent of the building; or

3. Hardscape landscaping; or

4. A reduction of exposed windows on the side of the structure with setback less than 30 feet (9144 mm). [14 CCR §1276.01(b)]

N. Ridgelines, fuel breaks, and greenbelts.

1. Section 609.2.7.1 is added to the California Wildland-Urban Interface Code to read as follows:

609.2.7.1 Greenbelts. Subdivisions and other developments, which propose Greenbelts as a part of the development plan, shall locate the Greenbelts strategically, as a separation between wildland fuels and Structures. The locations shall be approved by the inspection authority.

2. Section 609.2.7.2 is added to the California Wildland-Urban Interface Code to read as follows:

609.2.7.2 Access to Greenbelts. A minimum of one (1) access point shall be provided to new Greenbelts at an approved location to allow for on-going maintenance and firefighter access. Additional access points shall be provided when required by the Fire Code Official.

O. Appendix A.

1. Section A102.1 of the California Wildland-Urban Interface Code is amended to read as follows:

A102.1 General. Vegetation control shall comply with Sections A102.2 through A102.4 and with Chapter 6 of this code.

2. Section A105.1 of the California Wildland-Urban Interface Code is amended to read as follows:

A105.1 General. In addition to the requirements of the California Fire Code, Ordinance No. 787 and Chapter 6 of this code, storage and use of the materials shall be in accordance with Sections A105.2 through A105.4.2.

3. Section A105.4 of the California Wildland-Urban Interface Code is amended to read as follows:

A105.4 Combustible Materials. Outside storage of Combustible Materials such as, but not limited to, wood, rubber tires, building materials, or paper products shall comply with the other applicable sections of this ordinance and this section. Storage of pallets shall be in accordance with Section 5, Section 2810 of the Fire Code. Storage and processing of wood chips, hogged materials, fines, Compost, Compostable Material, Mulch, solid biomass, raw product, and combustible yard waste and recycle material shall be in accordance with Section 5, Section 2808 of the Fire Code.

(Ord. No. 787.11, § 1, 12-9-2025)