Chapter 15.130 — WILDLAND-URBAN INTERFACE CODE

Except as stated in this section or as amended below in 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 forth in each chapter's matrix, are hereby adopted and shall apply to the City of Norco. In addition, the following provisions that are excluded in the 2025 California Wildland- Urban Interface Code — Chapter 1, Division II of the California WildlandUrban Interface Code is 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 are adopted (Ord. 1135, 11/19/2025)

The City Council finds that the requirements set out here are reasonable and necessary modifications because of climatic, geological and topographical conditions within the City of Norco.

(Ord. 1135, 11/19/2025)

This chapter shall be cited as the "wildland-urban interface code" of the City of Norco and any references to the "California Wildland-Urban Interface Code," "CWUIC," "WUI," or "wildlandurban interface code" shall be deemed to refer to and apply to this chapter. (Ord. 1135, 11/19/2025)

§ 15.130.040. Addition — Section 102.4.1.1, APPLICATION OF THE CALIFORNIA WILDLAND-URBAN INTERFACE CODE.

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

Where a conflict exists between the provisions of the Norco Fire Code and the California Wildland-Urban Interface Code, the more restrictive provisions shall apply. (Ord. 1135, 11/19/2025)

§ 15.130.050. Addition — Section 104.1.1, AUTHORITY OF THE FIRE CHIEF, CHIEF DEPUTY, AND FIRE DEPARTMENT.

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

Downloaded from https://ecode360.com/NO4562 on 2026-07-07

City of Norco, CA

BUILDINGS AND CONSTRUCTION

§ 15.130.050

§ 15.130.060

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's, 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 Norco Code Enforcement Department.

  • 3.7 Peace Officers of the California Department of Parks and Recreation.

  • 3.8 3.8 The law enforcement officer of the Federal Bureau of Land Management.

(Ord. 1135, 11/19/2025)

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:

Downloaded from https://ecode360.com/NO4562 on 2026-07-07

City of Norco, CA

NORCO CODE

§ 15.130.060

§ 15.130.080

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. (Ord. 1135, 11/19/2025)

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. (Ord. 1135, 11/19/2025)

§ 15.130.080. Amendment — Section 105.2, PERMITS REQUIRED.

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:

• a) Automobile wrecking yard

• b) Candles and open flames in assembly areas

• c) Explosives or blasting agents

• d) Fireworks

• e) Flammable or combustible liquids

• f) Hazardous materials

• g) Liquefied petroleum gases

• h) Landscape and fuel modification zones

• i) Lumberyards

• j) Motor vehicle fuel-dispensing stations

• k) Open burning

• l) Pallet Yards

• m) Pyrotechnical special effects material

Downloaded from https://ecode360.com/NO4562 on 2026-07-07

City of Norco, CA

§ 15.130.080 BUILDINGS AND CONSTRUCTION

§ 15.130.120

• n) Tents, canopies and temporary membrane structures

• o) Tire storage

• p) Welding and cutting operations. (Ord. 1135, 11/19/2025)

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 the City of Norco fee schedule.

(Ord. 1135, 11/19/2025)

§ 15.130.100. Addition — Section 108.7, COST RECOVERY.

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., 25259.4, 25515(a),25540(a), 25541(a), California Government Code sections 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. (Ord. 1135, 11/19/2025)

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. Punishments and penalties for violations shall be in accordance with the City of Norco ordinances, any applicable fee schedule and Health and Safety Code Sections 17995 through 17995.5 and Government Code Section 51185. (Ord. 1135, 11/19/2025)

Downloaded from https://ecode360.com/NO4562 on 2026-07-07

City of Norco, CA § 15.130.120

NORCO CODE

§ 15.130.150

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. (Ord. 1135, 11/19/2025)

§ 15.130.130. Addition — Section 302.1.1, DESIGNATION OF FIRE HAZARD SEVERITY ZONES.

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 City Council 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 Ordinance No. 1131.

(Ord. 1135, 11/19/2025)

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 1131 as moderate, high, and very high fire hazard severity zones based on recommendations from the State Fire Marshal pursuant to Government Code Section 51178.

• a) Group U accessory structures not exceeding 120 square feet (11 m2) in floor area where located not less than 50 feet (15 240 mm) from applicable buildings.

• b) Group U agricultural buildings not less than 50 feet (15 240 mm) from applicable buildings. (Ord. 1135, 11/19/2025)

§ 15.130.150. Amendment — Section 602.1, GENERAL.

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

Downloaded from https://ecode360.com/NO4562 on 2026-07-07

City of Norco, CA

BUILDINGS AND CONSTRUCTION

§ 15.130.150

§ 15.130.180

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.

(Ord. 1135, 11/19/2025)

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.

(Ord. 1135, 11/19/2025)

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. (Ord. 1135, 11/19/2025)

Downloaded from https://ecode360.com/NO4562 on 2026-07-07

City of Norco, CA

NORCO CODE

§ 15.130.180

§ 15.130.210

§ 15.130.180. Amendment — Section 603.3, LANDSCAPE AND FUEL MODIFICATION PLANS.

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 WUI 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.

(Ord. 1135, 11/19/2025)

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. (Ord. 1135, 11/19/2025)

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.

(Ord. 1135, 11/19/2025)

§ 15.130.210. Amendment — Section 604.3, REQUIREMENTS.

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. California Government Code, Section 51182.

Downloaded from https://ecode360.com/NO4562 on 2026-07-07

City of Norco, CA

BUILDINGS AND CONSTRUCTION

§ 15.130.210

§ 15.130.250

4. California Code of Regulations, Title 19, Division 1, Chapter 7, Subchapter 1, Section 3.07.

5. The requirements of Chapter 15.130, Appendix A of this ordinance and Riverside County Fire Department Guidelines.

• (Ord. 1135, 11/19/2025)

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. (Ord. 1135, 11/19/2025)

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 Chapter 15.130, Section 604.7 may be used. (Ord. 1135, 11/19/2025)

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 604.7.4 of this code. (Ord. 1135, 11/19/2025)

§ 15.130.250. Addition — Section 604.7.1, STRUCTURES.

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

Downloaded from https://ecode360.com/NO4562 on 2026-07-07

City of Norco, CA

NORCO CODE

§ 15.130.250

§ 15.130.290

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.

(Ord. 1135, 11/19/2025)

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 Chapter 15.130, Section 604.7 shall be completed prior to vertical construction of any New Building or addition to an Existing Building.

(Ord. 1135, 11/19/2025)

§ 15.130.270. Addition — Section 604.7.3, PHOTOVOLTAIC SYSTEMS.

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 Chapter 15.130, Section 604 unless the clearance requirements of Chapter 15.130, Section 604 are provided as measured from the perimeter of the panel or cluster.

(Ord. 1135, 11/19/2025)

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. (Ord. 1135, 11/19/2025)

§ 15.130.290. Addition — Section 604.8.1, REQUIREMENTS.

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

Downloaded from https://ecode360.com/NO4562 on 2026-07-07

City of Norco, CA

BUILDINGS AND CONSTRUCTION

§ 15.130.290

§ 15.130.320

requirements for each zone listed in Chapter 15.130, Sections 604.8.2 through 604.8.5. (Ord. 1135, 11/19/2025)

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. (Ord. 1135, 11/19/2025)

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 Chapter 15.130, 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. (Ord. 1135, 11/19/2025)

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

Downloaded from https://ecode360.com/NO4562 on 2026-07-07

City of Norco, CA § 15.130.320

NORCO CODE

§ 15.130.340

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 Article 4, Section 604.11. (Ord. 1135, 11/19/2025)

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.

(Ord. 1135, 11/19/2025)

§ 15.130.340. Addition — Section 604.8.2.3.1, ZONE 0 RESTRICTIONS.

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.

Downloaded from https://ecode360.com/NO4562 on 2026-07-07

City of Norco, CA

BUILDINGS AND CONSTRUCTION

§ 15.130.340

§ 15.130.380

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 Chapter 15.130, Sections 604.8.1, 604.8.2.1, and 604.8.2.2.

• (Ord. 1135, 11/19/2025)

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. (Ord. 1135, 11/19/2025)

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.

(Ord. 1135, 11/19/2025)

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 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. (Ord. 1135, 11/19/2025)

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

Downloaded from https://ecode360.com/NO4562 on 2026-07-07

City of Norco, CA

NORCO CODE

§ 15.130.380

§ 15.130.440

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. (Ord. 1135, 11/19/2025)

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. (Ord. 1135, 11/19/2025)

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.

(Ord. 1135, 11/19/2025)

§ 15.130.410. Addition — Section 604.8.5.1, DEAD AND DYING VEGETATION.

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. (Ord. 1135, 11/19/2025)

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.

(Ord. 1135, 11/19/2025)

§ 15.130.430. Addition — Section 604.8.5.3, FIREWOOD.

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

(Ord. 1135, 11/19/2025)

§ 15.130.440. Addition — Section 604.8.5.4, CLEARANCE FROM CHIMNEY, STOVEPIPE.

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

Downloaded from https://ecode360.com/NO4562 on 2026-07-07

City of Norco, CA

BUILDINGS AND CONSTRUCTION

§ 15.130.440

§ 15.130.500

within 10 feet horizontally or vertically of a chimney outlet or stovepipe outlet shall be removed. (Ord. 1135, 11/19/2025)

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.

(Ord. 1135, 11/19/2025)

§ 15.130.460. Addition — Section 604.8.5.5.1 TREE SPACING.

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.

(Ord. 1135, 11/19/2025)

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

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 1/3 the height of the tree, whichever is less.

Exception: Fruit trees when approved by the Fire Code Official. (Ord. 1135, 11/19/2025)

§ 15.130.480. Addition — Section 604.8.5.5.3, GROUND COVER UNDER TREE CANOPY.

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. (Ord. 1135, 11/19/2025)

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.

(Ord. 1135, 11/19/2025)

§ 15.130.500. Addition — Section 604.8.5.6.1, NEW STRUCTURES.

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

Downloaded from https://ecode360.com/NO4562 on 2026-07-07

City of Norco, CA

NORCO CODE

§ 15.130.500

§ 15.130.550

604.8.5.6.1 New Structures. Continuous tree canopies are not allowed. Tree spacing shall be in accordance with Riverside County Fire Department. (Ord. 1135, 11/19/2025)

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 1/3 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.

(Ord. 1135, 11/19/2025)

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. (Ord. 1135, 11/19/2025)

§ 15.130.530. Addition — Section 604.9, FIRE PROTECTION EQUIPMENT AND UTILITIES.

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 Chapter 15.130, 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 Chapter 15.130, Appendix A.

(Ord. 1135, 11/19/2025)

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. (Ord. 1135, 11/19/2025)

§ 15.130.550. Addition — Section 604.11, FENCING.

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

Downloaded from https://ecode360.com/NO4562 on 2026-07-07

City of Norco, CA

BUILDINGS AND CONSTRUCTION

§ 15.130.550

§ 15.130.600

(Ord. 1135, 11/19/2025)

§ 15.130.560. Addition — Section 604.11.1, SCOPE.

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 required by Chapter 6 of this code.

(Ord. 1135, 11/19/2025)

§ 15.130.570. Addition — Section 604.11.3, NEW FENCING.

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.

(Ord. 1135, 11/19/2025)

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. (Ord. 1135, 11/19/2025)

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. (Ord. 1135, 11/19/2025)

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.

Downloaded from https://ecode360.com/NO4562 on 2026-07-07

City of Norco, CA § 15.130.600

NORCO CODE

§ 15.130.640

(Ord. 1135, 11/19/2025)

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 Chapter 15.130, Appendix A for storage requirements.

(Ord. 1135, 11/19/2025)

§ 15.130.620. Addition — Section 608.1.1, RESTRICTED DEVELOPMENT SETBACKS.

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 Chapter 15.130, 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.

(Ord. 1135, 11/19/2025)

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 Chapter 15.130, Section 608.2.1.

CCR T14 § 1276.00(a)] This section applies to new Tract and Parcel maps, new Buildings, and additions to Existing Buildings.

(Ord. 1135, 11/19/2025)

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 lowcarbon 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

Downloaded from https://ecode360.com/NO4562 on 2026-07-07

City of Norco, CA

BUILDINGS AND CONSTRUCTION

§ 15.130.640

§ 15.130.690

3. Hardscape landscaping; or

4. A reduction of exposed windows on the side of the structure with setback less than 30 feet (9144 mm). (CCR T14 § 1276.01)

• (Ord. 1135, 11/19/2025)

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. (Ord. 1135, 11/19/2025)

§ 15.130.660. Addition — Section 609.2.7.2, ACCESS TO GREENBELTS.

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. (Ord. 1135, 11/19/2025)

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

A102.1 General. Vegetation control shall comply with Chapter 15.130, Sections A102.2 through A102.4 and with Chapter 15.130 Chapter 6. (Ord. 1135, 11/19/2025)

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, Chapter 15.09, and Chapter 15.130, Chapter 6, storage and use of the materials shall be in accordance with Chapter 15.130, Sections A105.2 through A105.4.2. (Ord. 1135, 11/19/2025)

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 Chapter 15.09, Section 2810. 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 Chapter 15.09, Section 2808. (Ord. 1135, 11/19/2025)

Downloaded from https://ecode360.com/NO4562 on 2026-07-07

City of Norco, CA