Which site and landscape elements are included under Chapter 8-10?

Grounded in the retrieved California Historical Building Code — click a citation to read the verbatim passage:

• CHBC § 8-904.2.7 High relevance — show source text

  8-904.2.7 Lighting load calculations for services and feeders may be based on actual loads as installed in lieu of the “watts per square foot” method.

  8-904.2.8 Determination of existing loads may be based on maximum demand recordings in lieu of calculations, provided all of the following are met:

  1. Recordings are provided by the serving agency.
  2. The maximum demand data is available for a one-year period. Exception: If maximum demand data for a one-year period is not available, the maximum demand data shall be permitted to be based on the actual amperes continuously recorded over a minimum 30-day period by a recording ammeter connected to the highest loaded phase of the feeder or service. The recording should reflect the maximum demand when the building or space is occupied and include the measured or calculated load at the peak time of the year, including the larger of the heating or cooling equipment load.
  3. There has been no change in occupancy or character of load during the previous 12 months.
  4. The anticipated load will not change, or the existing demand load at 125 percent plus the new load does not exceed the ampacity of the feeder or rating of the service.

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  8-10 QUALIFIED HISTORICAL DISTRICTS, SITES AND OPEN SPACES

  SECTION 8-1001 — PURPOSE AND SCOPE

  8-1001.1 Purpose. The purpose of this chapter is to provide regulations for the preservation, rehabilitation, restoration and reconstruction of associated historical features of qualified historical buildings, properties or districts (as defined in Chapter 8-2), and for which Chapters 8-3 through 8-9 of the CHBC may not apply.

  8-1001.2 Scope. This chapter applies to the associated historical features of qualified historical buildings or properties such as historical districts that are beyond the buildings themselves which include, but are not limited to, natural features and designed site and landscape plans with natural and man-made landscape elements that support their function and aesthetics. This may include, but will not be limited to:

  1. Site plan layout configurations and relationships (pedestrian, equestrian and vehicular site circulation, topographical grades and drainage, and use areas).
  2. Landscape elements (plant materials, site structures other than the qualified historical building, bridges and their associated structures, lighting, water features, art ornamentation, and pedestrian, equestrian and vehicular surfaces).
  3. Functional elements (utility placement, erosion control and environmental mitigation measures).

  SECTION 8-1002 — APPLICATION

  8-1002.1 The CHBC shall apply to all sites and districts and their features associated with qualified historical buildings or qualified historical districts as outlined in 8-1001.2 Scope.

  8-1002.2 Where the application of regular code may impact the associated features of qualified historical properties beyond their footprints, by work performed secondarily, those impacts shall also be covered by the CHBC.

  8-1002.3 This chapter shall be applied for all issues regarding code compliance or other standard or regulation as they affect the purpose of this chapter.

• CHBC § 8-1001.1 High relevance — show source text

  8-1001.1 Purpose. The purpose of this chapter is to provide regulations for the preservation, rehabilitation, restoration and reconstruction of associated historical features of qualified historical buildings, properties or districts (as defined in Chapter 8-2), and for which Chapters 8-3 through 8-9 of the CHBC may not apply.

  8-1001.2 Scope. This chapter applies to the associated historical features of qualified historical buildings or properties such as historical districts that are beyond the buildings themselves which include, but are not limited to, natural features and designed site and landscape plans with natural and man-made landscape elements that support their function and aesthetics. This may include, but will not be limited to:

  1. Site plan layout configurations and relationships (pedestrian, equestrian and vehicular site circulation, topographical grades and drainage, and use areas).
  2. Landscape elements (plant materials, site structures other than the qualified historical building, bridges and their associated structures, lighting, water features, art ornamentation, and pedestrian, equestrian and vehicular surfaces).
  3. Functional elements (utility placement, erosion control and environmental mitigation measures).

  SECTION 8-1002 — APPLICATION

  8-1002.1 The CHBC shall apply to all sites and districts and their features associated with qualified historical buildings or qualified historical districts as outlined in 8-1001.2 Scope.

  8-1002.2 Where the application of regular code may impact the associated features of qualified historical properties beyond their footprints, by work performed secondarily, those impacts shall also be covered by the CHBC.

  8-1002.3 This chapter shall be applied for all issues regarding code compliance or other standard or regulation as they affect the purpose of this chapter.

  8-1002.4 The application of any code or building standard shall not unduly restrict the use of a qualified historical building or property that is otherwise permitted pursuant to Chapter 8-3 and the intent of the State Historical Building Code, Section 18956.

  SECTION 8-1003 — SITE RELATIONS

  The relationship between a building or property and its site, or the associated features of a district (including qualified historical landscape), site, objects and their features are critical components that may be one of the criteria for these buildings and properties to be qualified under the CHBC. The CHBC recognizes the importance of these relationships. This chapter shall be used to provide context sensitive solutions for treatment of qualified historical buildings, properties, district or their associated historical features, or when work to be performed secondarily impacts the associated historical features of a qualified historical building or property.

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• California Historical Building Code High relevance — show source text

  OUTDOOR AIR (Outside air) is air taken from outdoors and not previously circulated in the building.

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  ALL OCCUPANCIES—GENERAL PROVISIONS

  OUTDOOR AREAS are areas external to a building. These include but are not limited to the following areas:

  Building entrance way is the external area of any operable doorway in or out of a building, including overhead doors. These areas serve any doorway, set of doors (including elevator doors such as in parking garages), turnstile, vestibule or other form of portal that is ordinarily used to gain access to the building by its users and occupants. Where buildings have separate one-way doors to enter and to leave, this also includes any area serving any doors ordinarily used to leave the building.

  Building façade is the exterior surfaces of a building, not including horizontal roofing, signs and surfaces not visible from any public accessible viewing location.

  Canopy is a permanent structure, other than a parking garage area, consisting of a roof and supporting building elements, with the area beneath at least partially open to the elements. A canopy may be freestanding or attached to surrounding structures. A canopy roof may serve as the floor of a structure above.

  Carport is a covered, open-sided structure designed or used primarily for the purpose of parking vehicles, having a roof over the parking area. Typically, carports are free-standing or projected from the side of the building and are only two or fewer car lengths deep. A “Carport” is not a “Garage.”

  Hardscape is the area of an improvement to a site that is paved or has other structural features such as curbs, plazas, entries, parking lots, site roadways, driveways, walkways, sidewalks, bikeways, water features and pools, storage or service yards, loading docks, amphitheaters, outdoor sales lots, and private monuments and statuary.

  Outdoor sales canopy is a canopy specifically to cover and protect an outdoor sales area.

  Outdoor sales frontage is the portion of the perimeter of an outdoor sales area immediately adjacent to a public street, road or sidewalk.

  Outdoor sales lot is an uncovered paved area used exclusively for the display of vehicles, equipment or other merchandise for sale. All internal and adjacent access drives, walkway areas, employee and customer parking areas, vehicle service or storage areas are not outdoor sales lot areas, but are considered hardscape.

  Parking lot is an uncovered area for the purpose of parking vehicles. Parking lot is a type of hardscape.

  Paved area is an area that is paved with concrete, asphalt, stone, brick, gravel or other improved wearing surface, including the curb.

  Principal viewing location is anywhere along the adjacent highway, street, road or sidewalk running parallel to an outdoor sales frontage.

  Public monuments are statuary, buildings, structures and/or hardscape on public land.

  Stairways and ramps. Stairways are one or more flights of stairs with the necessary landings and platforms connecting them to form a continuous and uninterrupted passage from one level to another. An exterior stairway is open on at least one side, except for required structural columns, beams, handrails and guards. The adjoining open areas shall be either yards, courts or public ways. The other sides of the exterior stairway need not be open. Ramps are walking surfaces with a slope steeper than 5 percent.

• CHBC § 214.15 High relevance — show source text

  Objective Standards Standards that involve no personal or subjective judgment by a public official and are uniformly verifiable by reference to an external and uniform benchmark or criterion available and knowable by both the applicant or proponent and the public official prior to submittal. Source: Government Code section 66313, subdivision (i)

  Passageway A pathway that is unobstructed, clear to the sky, and extends from a street to one entrance of the ADU. Source: Government Code section 66313, subdivision (j)

  Permitting Agency Any entity that is involved in the review of a permit for an ADU or JADU, and for which there is no substitute, including, but not limited to, applicable planning departments, building departments, utilities, and special districts. Source: Government Code section 66313, subdivision (k)

  Planned Development A real property development other than a community apartment project, a condominium project, or a stock cooperative, having either or both of the following features:

  10

  (a) Common area that is owned either by an association or in common by the owners of the separate interests who possess appurtenant rights to the beneficial use and enjoyment of the common area.

  (b) Common area and an association that maintains the common area with the power to levy assessments that may become a lien upon the separate interests in accordance with Article 2 (commencing with Section 5650) of Chapter 8.

  Source: Civil Code section 4175

  Proposed Dwelling A dwelling that is the subject of a permit application and meets the requirements for permitting. Source: Government Code section 66313, subdivision (l)

  Public Transit A location, including, but not limited to, a bus stop or train station, where the public may access buses, trains, subways, and other forms of transportation that charge set fares, run on fixed routes, and are available to the public. Source: Government Code section 66313, subdivision (m)

  Qualified Buyer Persons and families of low or moderate income, as defined in Section 50093 of the Health and Safety Code. Source: Government Code section 66340, subdivision (a); Health and Safety Code section 50093

  Qualified Nonprofit Corporation A nonprofit corporation organized pursuant to Section 501(c)(3) of the Internal Revenue Code that has received a welfare exemption under Section 214.15 of the Revenue and Taxation Code for properties intended to be sold to low-income families who participate in a special no-interest loan program. Source: Government Code section 66340, subdivision (b)

  Reasonable Restrictions Restrictions that do not unreasonably increase the cost to construct, effectively prohibit the construction of, or extinguish the ability to otherwise construct, an ADU or JADU. Source: Civil Code section 4751, subdivision (b), and Civil Code section 714.3, subdivision (b)

  Single-Family Dwelling For the purposes of State ADU Law, a single-family dwelling is a single unit providing complete, independent living facilities for one family, including permanent provisions for living, sleeping, eating, cooking, and sanitation, and existing as a separate interest of real property, such as a detached single-family dwelling or a townhouse.

  Substandard Building Any building or portion thereof, or premises on which the building is located, in which there exists any of a long list of conditions that endanger the life, limb, health, property, safety, or welfare of the public or occupants thereof. Source: Health and Safety Code section 17920.3

• CHBC § 31.75 High relevance — show source text

  The clearance between the car platform sill and the edge of the hoistway landing shall be no greater than 1 [1] / 4 inches (31.75 mm).

  1124A.11 Platform (wheelchair) lifts.

  1124A.11.1 General. Platform (wheelchair) lifts may be provided between levels, in lieu of passenger elevators, when the vertical distance between landings, as well as the structural design and safeguards are as allowed by ASME A18.1 (Safety Standard for Plat- form Lifts and Stairway Chair Lifts), California Code of Regulations, Title 8 (Elevator Safety Orders), and any applicable safety regulations of other administrative authorities having jurisdiction.

  If lifts are provided, they shall be designed and constructed to facilitate unassisted entry, operation and exit from the lift, and shall comply with restrictions and enhancements of this section in conjunction with Title 8 of the California Code of Regulations.

  1124A.11.2 Size and clear floor space. Platform (wheelchair) lifts shall be of sufficient size to accommodate a wheelchair in accor- dance with Section 1138A.1.4.

  1124A.11.3 Lift access. There shall be a level and clear floor area or landing at each floor or level served by platform (wheelchair) lifts. Clear floor areas or landings shall meet the applicable “accessible route” requirements.

  1124A.11.4 Standby power. To ensure continued operation in case of primary power loss, platform (wheelchair) lifts shall be provided with standby power or with self-rechargeable battery power that provides sufficient power to operate all platform lift func- tions for a minimum of five upward and downward trips.

  1124A.11.5 Openness. Platform (wheelchair) lifts on an accessible means of egress shall not be installed in a fully enclosed hoistway.

  1124A.11.6 Doors and gates. Lifts shall have low energy power-operated doors or gates, which shall remain open for 20 seconds minimum. End doors shall have 32 inches (813 mm) minimum clear opening width. Side doors clear opening width shall be 42 inches (1067 mm) minimum.

  Exception: Lifts having doors or gates on opposite sides shall be permitted to have self-closing manual doors or gates.

  1124A.11.7 Restriction sign. A sign complying with Section 1143A shall be securely fastened in a conspicuous place at each landing and on the platform. The sign shall state “No Freight” in letters not less than 5/8 inch (16 mm) high and include the “International Symbol of Accessibility.”

  SECTION 1125A—HAZARDS ON ACCESSIBLE ROUTES

  1125A.1 Warning curbs. Abrupt changes in level exceeding 4 inches (101.6 mm) in vertical dimension, such as changes in level at plant- ers or fountains located in or adjacent to walks, halls, corridors, passageways, aisles, pedestrian ways and other circulation spaces shall be identified by curbs projecting at least 6 inches (152.4 mm) in height above the walk or sidewalk surface to warn the blind of a potential drop-off.

  Exception: When a guardrail or handrail is provided with edge protection in accordance with Section 1012.10.1.

• CHBC § 1617A.1.41. High relevance — show source text

  Class 1. An oxidizer that does not moderately increase the burning rate of combustible materials.

  [F] OXIDIZING GAS. A gas that can support and accelerate combustion of other materials more than air does.

  [BS] PANEL (PART OF A STRUCTURE). The section of a floor, wall or roof comprised between the supporting frame of two adjacent rows of columns and girders or column bands of floor or roof construction.

  [BE] PANIC HARDWARE. A door-latching assembly incorporating a device that releases the latch upon the application of a force in the direction of egress travel. See “Fire exit hardware.”

  [BS] PARTICLEBOARD. A generic term for a panel primarily composed of cellulosic materials (usually wood), generally in the form of discrete pieces or particles, as distinguished from fibers. The cellulosic material is combined with synthetic resin or other suitable bonding system by a process in which the interparticle bond is created by the bonding system under heat and pressure.

  PASSAGE DOOR. [HCD 1-AC] A door other than an exit door through which persons may traverse.

  PASSENGER ELEVATOR. [DSA-AC] See “Elevator, Passenger”

  PASSENGER ELEVATOR. [HCD 1 & HCD 2] An elevator used primarily to carry passengers. For additional information, see California Code of Regulations, Title 8, Division 1, Chapter 4.

  PASSIVE SOLAR ENERGY COLLECTOR. [HCD 1 & HCD 2] Uses architectural components, rather than mechanical components, to provide heating or cooling for a building interior.

  PATH OF TRAVEL. [DSA-AC] An identifiable accessible route within an existing site, building or facility by means of which a particular area may be approached, entered and exited, and which connects a particular area with an exterior approach (including sidewalks, streets and parking areas), an entrance to the facility, and other parts of the facility. When alterations, structural repairs or additions are made to existing buildings or facilities, the term “path of travel” also includes the toilet and bathing facilities, telephones, drinking fountains and signs serving the area of work.

  PEDESTRIAN. [HCD 1-AC] An individual who moves in walking areas with or without the use of walking assistive devices such as crutches, leg braces, wheelchairs, white cane, service animal, etc.

  PEDESTRIAN WAY. A route by which a pedestrian may pass.

  PEER REVIEW. [OSHPD 1, 1R, 2, 4 & 5] Peer review refers to the procedure contained in California Building Code Section 1617A.1.41.

  [A] PEER REVIEW. An independent and objective technical review conducted by an approved third party.

  [BF] PENETRATION FIRESTOP. A through-penetration firestop or a membrane-penetration firestop.

  [BG] PENTHOUSE. An enclosed, unoccupiable rooftop structure used for sheltering mechanical and electrical equipment, tanks, elevators and related machinery, stairways, and vertical shaft openings.

  [BS] PERFORMANCE CATEGORY. A designation of wood structural panels as related to the panel performance used in Chapter 23.

• CHBC § 503A.4 High relevance — show source text

  503 A .13 Voluntary lateral force-resisting system alterations. Structural alterations that are intended exclusively to improve the lateral force-resisting system and are not required by other sections of this code shall not be subject to the structural requirements of Section 503 A except as described below, provided that all of the following apply:

  1. With the alteration complete, the capacity of existing structural systems to resist forces is not reduced.
  2. New structural elements are detailed and connected to existing or new structural elements as required by the selected design criteria in accordance with Section 503A.4 or 304A.3.4 of this code. Exception: New lateral force-resisting systems designed in accordance with the California Building Code are permitted to be of a type designated as “Ordinary” or “Intermediate” where ASCE 7 Table 12.2-1 states these types of systems are not permitted.
  3. Supports and attachments for nonstructural elements removed and reinstalled to facilitate the work comply with the Cali- fornia Building Code for new construction.
  4. The alterations do not create a structural irregularity as defined in ASCE 7 or make an existing structural irregularity more

  severe.

  Exception: Condition 4 need not be satisfied where the work complies with Section 304A.3.4 of this code.

  503 A .14 Smoke compartments. Shall comply with California Building Standards Code.

  503 A .15 Refuge areas. Shall comply with California Building Standards Code.

  503 A .16 Reserved.

  503 A .17 Ambulatory care facilities. Where a work area exceeds 50 percent of the building area and the work area includes an existing ambulatory care facility, the following shall be provided:

  1. A smoke compartment in accordance with Section 422.3 of the California Building Code where the alteration results in an ambulatory care facility greater than 10,000 square feet on one story.
  2. Separation from adjacent spaces in accordance with Section 422.2 of the California Building Code, where any such facility has the potential for four or more care recipients are to be incapable of self-preservation at any time.

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  PRESCRIPTIVE COMPLIANCE METHOD

  503 A .18 Reserved.

  503 A .19 Reserved.

  503 A .20 Two-way communications systems. Where the work area for alterations exceeds 50 percent of the building area and the building has elevator service, a two-way communication systems shall be provided where required by Section 1009.8 of the Califor- nia Building Code.

  SECTION 504 A

  RESERVED

  SECTION 505 A

  RESERVED

  SECTION 506 A —CHANGE OF OCCUPANCY

• CHBC § 3.4. High relevance — show source text

  [BS] ROOF COATING. A fluid-applied adhered coating used for roof maintenance, roof repair or as a component of a roof covering system or roof assembly.

  [BS] ROOF RECOVER. The process of installing an additional roof covering over a prepared existing roof covering without removing the existing roof covering.

  [BS] ROOF REPAIR. Reconstruction or renewal of any part of an existing roof for the purpose of correcting damage or restoring the predamage condition.

  [BS] ROOF REPLACEMENT. The process of removing the existing roof covering, repairing any damaged substrate and installing a new roof covering.

  SPC SEISMIC SEPARATION. [OSHPD 1 & 1R] Means a building separation in accordance with the California Administrative Code, Chap- ter 6 Section 3.4.

  SUBSTANDARD BUILDING. [HCD 1, HCD 2] See Health and Safety Code Section 17920.3.

  [BG] STORM SHELTER. A building, structure or portions thereof, constructed in accordance with ICC 500, designated for use during hurricanes, tornadoes or other severe windstorms.

  [BS] SUBSTANTIAL DAMAGE. For the purpose of determining compliance with the flood provisions of this code, damage of any origin sustained by a structure whereby the cost of restoring the structure to its before-damaged condition would equal or exceed 50 percent of the market value of the structure before the damage occurred.

  [BS] SUBSTANTIAL IMPROVEMENT. For the purpose of determining compliance with the flood provisions of this code, any repair, alteration, addition or improvement of a building or structure, the cost of which equals or exceeds 50 percent of the market value of the structure, before the improvement or repair is started. If the structure has sustained substantial damage, any repairs are considered substantial improvement regardless of the actual repair work performed. The term does not, however, include either of the following:

  1. Any project for improvement of a building required to correct existing health, sanitary or safety code violations identified by the code official and that is the minimum necessary to ensure safe living conditions.
  2. Any alteration of a historic structure, provided that the alteration will not preclude the structure’s continued designation as a historic structure.

  [BS] SUBSTANTIAL STRUCTURAL ALTERATION. An alteration in which the gravity load-carrying structural elements altered within a 5-year period support more than 30 percent of the total floor and roof area of the building or structure. The areas to be counted toward the 30 percent shall include mezzanines, penthouses, and in-filled courts and shafts tributary to the altered structural elements.

  [BS] SUBSTANTIAL STRUCTURAL DAMAGE. A condition where any of the following apply:

  1. The vertical elements of the lateral force-resisting system have suffered damage such that the lateral load-carrying capacity of any story in any horizontal direction has been reduced by more than 33 percent from its predamage condition.
  2. The capacity of any vertical component carrying gravity load, or any group of such components, that has a tributary area more than 30 percent of the total area of the structure’s floor(s) and roof(s) has been reduced more than 20 percent from its predamage condition, and the remaining capacity of such affected elements, with respect to all dead and live loads, is less than 75 percent of that required by the California Building Code for new buildings of similar structure, purpose and location.
• CHBC § 8-31 High relevance — show source text

  owner, location|| |2|Building type, building area|| |3|Overall project commissioning schedule|| |4|Contact information for individual/company providing commissioning services|| ||COMMISSIONING GOALS|| |5|Meet_California Green Building Standards Code_ requirements for commissioning|| |6|Meeting OPR and BOD requirements|| |7|Carrying out requirements for commissioning activities as specified in plans and specifications|| ||SYSTEMS TO BE COMMISSIONED|| |8|Explanation of the original design intent (refer to OPR and BOD documents)|| |9|Equipment and systems to be tested, functions to be tested, conditions under which the test shall be
  performed and measurable criteria for acceptable performance|| ||COMMISSIONING TEAM INFORMATION|| |10|List of all team members and contact information (i.e. owner, owner’s representative, architect,
  engineers, designated commissioning representative and (if available): general contractor,
  subcontractors and construction manager)|| ||COMMISSIONING PROCESS ACTIVITIES, SCHEDULES and RESPONSIBILITIES|| |11|Prescribed commissioning process steps and activities to be accomplished by the Cx team throughout
  the design to occupancy|| |12|Roles and responsibilities for each member of the Cx team for each phase of the work|| |13|Required Cx deliverables, reports, forms and verifications expected at each stage of the commissioning
  effort|| |14|Confirmation process for the O&M manual, systems manual and the facility operator and maintenance
  staff training||

  1. The following systems shall be tested: renewable energy systems, landscape irrigation systems and water reuse systems.

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  COMPLIANCE FORMS, WORKSHEETS AND REFERENCE MATERIAL

  FUNCTIONAL PERFORMANCE TESTING

  COMPLIANCE FORM

  CALGreen Commissioning Requirement 5.410.2.4, Functional Performance Testing

  5.410.2.4 Functional performance testing. [N] Functional performance tests shall demonstrate the correct installation and operation of each component, system and system-to-system interface in accordance with the approved plans and specifications. Functional performance testing reports shall contain information addressing each of the building components tested, the testing methods utilized, and include any readings and adjustments made.

  Test forms have been developed for each piece of commissioned equipment and system and include the checked elements listed below. These tests have been executed with deficiencies corrected.

  Col1	FUNCTIONAL TEST ELEMENTS	INCLUDED
  1.	Date and parties participating	
  2.	Signature block attesting test is complete and accurate	
  3.	Prerequisites	
  4.	Precautions	
  5.	Instrumentation required	
  6.	Reference to the source of what is being confirmed (sequences, packaged features, etc.)	
  7.	Detailed step-by-step test instructions	
  8.	Acceptance criteria	
  9.	Results	
  10.	Confirmation of returning to normal	
  11.	Deficiency list	

  ---

  Cx Coordinator Signature Date

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  COMPLIANCE FORMS, WORKSHEETS AND REFERENCE MATERIAL

• CHBC § 8-2 High relevance — show source text

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  8-2 DEFINITIONS

  SECTION 8-201 — DEFINITIONS

  For the purpose of the CHBC, certain terms and phrases, words and their derivatives shall be construed as specified in this chapter. Additional definitions and/or terms may appear in the various other chapters relative to terms or phrases primarily applicable thereto. Any reference to “authority having jurisdiction” does not necessarily preclude the appellate process of Section 8-104.3.

  ADDITION. A nonhistorical extension or increase in floor area or height of a building or property.

  ALTERATION. A modification to a qualified historical building or property that affects the usability of the building or property, or part thereof. Alterations include, but are not limited to, remodeling, renovation, rehabilitation, reconstruction, historical restoration, changes or rearrangement of the structural parts or elements, and changes or rearrangements in the plan configuration of walls and full-height partitions.

  BUILDING STANDARD. Any guideline, regulation or code that may be applied to a qualified historical building or property.

  CHARACTER-DEFINING FEATURE. Those visual aspects and physical elements that comprise the appearance of a historical building or property, and that are significant to its historical, architectural and cultural values, including the overall shape of the historical building or property, its materials, craftsmanship, decorative details, interior spaces and features, as well as the various aspects of its site and environment.

  CULTURAL RESOURCE. Building, site, property, object or district evaluated as having significance in prehistory or history.

  DISTINCT HAZARD. Any clear and evident condition that exists as an immediate danger to the safety of the occupants or public right of way. Conditions that do not meet the requirements of current regular codes and ordinances do not, of themselves, constitute a distinct hazard. Section 8-104.3, SHBC appeals, remains applicable.

  ENFORCING AGENCY, Authority Having Jurisdiction, Local Agency with Jurisdiction. An entity with the responsibility for regulating, enforcing, reviewing or otherwise that exerts control of or administration over the process of granting permits, approvals, decisions, variances, appeals for qualified historical buildings or properties.

  EXIT LADDER DEVICE. An exit ladder device is a permanently installed, fixed, folding, retractable or hinged ladder intended for use as a means of emergency egress from areas of the second or third stories. Unless approved specifically for a longer length, the ladder shall be limited to 25 feet (7620 mm) in length. Exit ladders are permitted where the area served by the ladder has an occupant load less than 10 persons.

  FIRE HAZARD. Any condition which increases or may contribute to an increase in the hazard or menace of fire to a greater degree than customarily recognized by the authority having jurisdiction, or any condition or act which could obstruct, delay, hinder or interfere with the operations of firefighting personnel or the egress of occupants in the event of fire. Section 8-104.3, SHBC appeals, remains applicable.

  HISTORICAL FABRIC OR MATERIALS. Original and later-added historically significant construction materials, architectural finishes or elements in a particular pattern or configuration which form a qualified historical property, as determined by the authority having jurisdiction.

  HISTORICAL SIGNIFICANCE. Importance for which a property has been evaluated and found to be historical, as determined by the authority having jurisdiction.

• CHBC § 1905.2. High relevance — show source text

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  DEFINITIONS

  [BS] CAST-IN-PLACE CONCRETE EQUIVALENT DIAPHRAGM. See Section 1905.2.

  [F] CEILING LIMIT. The maximum concentration of an airborne contaminant to which one may be exposed. The ceiling limits utilized are those published in DOL 29 CFR Part 1910.1000. The ceiling Recommended Exposure Limit (REL-C) concentrations published by the US National Institute for Occupational Safety and Health (NIOSH), Threshold Limit Value—Ceiling (TLV-C) concentrations published by the American Conference of Governmental Industrial Hygienists (ACGIH), Ceiling Workplace Environmental Exposure Level (WEELCeiling) Guides published by the American Industrial Hygiene Association (AIHA), and other approved, consistent measures are allowed as surrogates for hazardous substances not listed in DOL 29 CFR Part 1910.1000.

  [BF] CEILING RADIATION DAMPER. A listed device installed in a ceiling membrane of a fire-resistance-rated floor/ceiling or roof/ceiling assembly to limit automatically the radiative heat transfer through an air inlet/outlet opening. Ceiling radiation dampers include air terminal units, ceiling dampers and ceiling air diffusers. Ceiling radiation dampers are classified for use in either static systems that will automatically shut down in the event of a fire, or in dynamic systems that continue to operate during a fire. A dynamic ceiling radiation damper is tested and rated for closure under elevated temperature airflow.

  CELL (Detention or correctional facility). [SFM] A sleeping or housing unit in a detention or correctional facility for the confinement of not more than two inmates or prisoners.

  [BG] CELL (Group I-3 occupancy). A room within a housing unit in a detention or correctional facility used to confine inmates or prisoners.

  [BS] CELL (masonry). A void space having a gross cross-sectional area greater than 1 [1] / 2 square inches (967 mm [2] ).

  CELL COMPLEX. A cluster or group of cells or dormitories in a jail, prison or other detention facility, together with rooms used for accessory purposes, all of which open into the cell complex, and are used for functions such as dining, counseling, exercise, classrooms, sick call, visiting, storage, staff offices, control rooms or similar functions, and interconnecting corridors all within the cell complex.

  [BG] CELL TIER. Levels of cells vertically stacked above one another within a housing unit.

  CELL TIERS. Cells, dormitories and accessory spaces. Cell tiers are located one level above the other and do not exceed two levels per floor. A cell tier shall not be considered a story or mezzanine. The aggregate area of a tier within a housing pod shall not be greater than one-third of the floor area of that pod when supported by non-rated construction, and shall be no greater than two-thirds of the floor area of the pod when the tier floor and supporting elements meet the fire rating requirements of a floor.

  CELLULAR CONCRETE. [HCD 1 & HCD 2] A lightweight product consisting of Portland cement and selected gas-forming chemicals or foaming agents which create homogeneous voids in the hardened concrete.

• CHBC § 2-38 High relevance — show source text

  INTAKE AND RELEASE AREAS. A temporary holding suite where detained and/or incarcerated individuals are received and processed into a facility or are released from the facility. The suite may contain holding cells, sobering and safety cells, medical examination space, inter- view rooms, property storage and staff work areas.

  [BE] INTENDED TO BE OCCUPIED AS A RESIDENCE. This refers to a dwelling unit or sleeping unit that can or will be used all or part of the time as the occupant’s place of abode.

  [BE] INTERIOR EXIT RAMP. An exit component that serves to meet one or more means of egress design requirements, such as required number of exits or exit access travel distance, and provides for a protected path of egress travel to the exit discharge or public

  way.

  [BE] INTERIOR EXIT STAIRWAY. An exit component that serves to meet one or more means of egress design requirements, such as required number of exits or exit access travel distance, and provides for a protected path of egress travel to the exit discharge or public

  way.

  [BF] INTERIOR FINISH. Interior finish includes interior wall and ceiling finish and interior floor finish.

  [BF] INTERIOR FLOOR FINISH. The exposed floor surfaces of buildings including coverings applied over a finished floor or stair, including risers.

  [BF] INTERIOR FLOOR-WALL BASE. Interior floor finish trim used to provide a functional or decorative border at the intersection of walls and floors.

  [BF] INTERIOR SURFACES. Surfaces other than weather exposed surfaces.

  [BF] INTERIOR WALL AND CEILING FINISH. The exposed interior surfaces of buildings, including but not limited to: fixed or movable walls and partitions; toilet room privacy partitions; columns; ceilings; and interior wainscoting, paneling or other finish applied structurally or for decoration, acoustical correction, surface insulation, structural fire resistance or similar purposes, but not including trim.

  [BS] INTERLAYMENT. A layer of felt or nonbituminous saturated felt not less than 18 inches (457 mm) wide, shingled between each course of a wood-shake roof covering.

  INTERNATIONAL SYMBOL OF ACCESSIBILITY. The symbol adopted by Rehabilitation International’s 11th World Congress for the purpose of indicating that buildings and facilities are accessible to persons with disabilities.

  [BS] INTERMODAL SHIPPING CONTAINER. A six-sided steel unit originally constructed as a general cargo container used for the transport of goods and materials.

  2-38 2025 CALIFORNIA BUILDING CODE

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  DEFINITIONS

  [BF] INTUMESCENT FIRE-RESISTIVE MATERIALS. A liquid mixture applied to substrates by brush, roller, spray or trowel that expands into a protective insulating layer to provide fire-resistive protection of the substrates when exposed to flame or intense heat.

  IRREGULAR STRUCTURE. [DSA-SS, DSA-SS/CC, OSHPD 1, 1R, 2, 4 & 5] A structure designed as having one or more plan or vertical irreg- ularities per ASCE 7 Section 12.3.