Material‑specific thresholds & cross-references (where CBC defers to other codes)

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

• CBC § 0.5 High relevance — show source text

  For lumber and glued laminated timber members installed or used at all other moisture conditions or cross laminated timber and wood structural panels that
  are dry at time of installation and used under dry conditions in accordance with the ANSI/AWC NDS, the creep component of the long-term deflection is permitted to be estimated
  as the immediate dead load deflection resulting from_D_. The value of 0.5_D_ shall not be used in combination with ANSI/AWC NDS provisions for long-term loading.
  e. The preceding deflections do not ensure against ponding. Roofs that do not have sufficient slope or camber to ensure adequate drainage shall be investigated for ponding.
  See Chapter 8 of ASCE 7.
  f. The wind load shall be permitted to be taken as 0.42 times the “component and cladding” loads or directly calculated using the 10-year mean return interval basic wind
  speed,V, for the purpose of determining deflection limits in Table 1604_A_.3. Where framing members support glass, the deflection limit therein shall not exceed that specified
  in Section 1604_A_.3.7
  g. For steel structural members, the deflection due to creep component of long-term dead load shall be permitted to be taken as zero.
  h. For aluminum structural members or aluminum panels used in skylights and sloped glazing framing, roofs or walls of sunroom additions or patio covers not supporting edge
  of glass or aluminum sandwich panels, the total load deflection shall not exceed_l_/60. For continuous aluminum structural members supporting edge of glass, the total load
  deflection shall not exceed_l_/175 for each glass lite or_l_/60 for the entire length of the member, whichever is more stringent. For aluminum sandwich panels used in roofs or
  walls of sunroom additions or patio covers, the total load deflection shall not exceed_l_/120.
  i._ l_ = Length of the member between supports. For cantilever members,l shall be taken as twice the length of the cantilever.
  j. The snow load shall be permitted to be taken as 0.7 times the design snow load determined in accordance with Section 1608_A_.1 for the purpose of determining deflection
  limits in Table 1604_A_.3.|

  1604 A .3.1 Deflections. The deflections of structural members shall not exceed the more restrictive of the limitations of Sections 1604 A .3.2 through 1604A.3.9 or that permitted by Table 1604 A .3.

  1604 A .3.2 Reinforced concrete. The deflection of reinforced concrete structural members shall not exceed that permitted by ACI 318.

  1604 A .3.3 Steel. The deflection of steel structural members shall not exceed that permitted by AISC 360, AISI S100, ASCE 8, SJI 100 or SJI 200, as applicable.

  1604 A .3.4 Masonry. The deflection of masonry structural members shall not exceed that permitted by TMS 402.

  1604 A .3.5 Aluminum. The deflection of aluminum structural members shall not exceed that permitted by AA ADM.

  1604 A .3.6 Limits. The deflection limits of Section 1604 A .3.1 shall be used unless more restrictive deflection limits are required by a referenced standard for the element or finish material.

• CBC § 1.1.6 Medium relevance — show source text

  1.1.6 Nonbuilding standards, orders and regulations. Requirements contained in the California Building Code, or in any other refer- enced standard, code or document, which are not building standards as defined in Health and Safety Code Section 18909, shall not be construed as part of the provisions of this code. For nonbuilding standards, orders and regulations, see other titles of the California Code of Regulations.

  1.1.7 Order of precedence and use.

  1.1.7.1 Differences. In the event of any differences between these building standards and the standard reference documents, the text of these building standards shall govern.

  1.1.7.2 Specific provisions. Where a specific provision varies from a general provision, the specific provision shall apply.

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  ADMINISTRATION

  1.1.7.3 Conflicts. When the requirements of this code conflict with the requirements of any other part of the California Building Standards Code, Title 24, the most restrictive requirements shall prevail.

  1.1.7.3.1 Detached one- and two-family dwellings. Detached one- and two-family dwellings, lodging houses, live/work units, townhouses not more than three stories above grade plane in height with a separate means of egress, and their accessory struc- tures, may be designed and constructed in accordance with this code or the California Residential Code, but not both, unless the proposed structure(s) or element(s) exceed the design limitations established in the California Residential Code, and the code user is specifically directed by the California Residential Code to use this code.

  1.1.8 City, county, or city and county amendments, additions or deletions. The provisions of this code do not limit the authority of city, county, or city and county governments to establish more restrictive and reasonably necessary differences to the provisions contained in this code pursuant to complying with Section 1.1.8.1. The effective date of amendments, additions or deletions to this code by a city, county, or city and county filed pursuant to Section 1.1.8.1 shall be the date filed. However, in no case shall the amendments, additions or deletions to this code be effective any sooner than the effective date of this code.

  Local modifications shall comply with Health and Safety Code Section 18941.5 for Building Standards Law, Health and Safety Code Section 17958 for State Housing Law or Health and Safety Code Section 13869.7 for Fire Protection Districts.

  1.1.8.1 Findings and filings. 1. The city, county, or city and county shall make express findings for each amendment, addition or deletion based upon climatic, topographical or geological conditions. Exception: Hazardous building ordinances and programs mitigating unreinforced masonry buildings. 2. The city, county, or city and county shall file the amendments, additions or deletions expressly marked and identified as to the applicable findings. Cities, counties, cities and counties, and fire departments shall file the amendments, additions or deletions, and the findings with the California Building Standards Commission at 2525 Natomas Park Drive, Suite 130, Sacramento, CA 95833.

• CBC § 1.15 Medium relevance — show source text

  Exception: The gap-to-side plate thickness ratio shall be permitted to be modified for moment connections with unequal beam sizes on opposite sides of the column or when orthogonal beams acting as drag connections frame into the side plate. 9. Demand Critical fillet welds {2}, {5}, {5a} and {8} shall have Magnetic Particle Testing (MT) in accordance with AWS D1.1 for procedure, technique and acceptance. Inspect the beginning and end of these welds for a 6-inch (152 mm) length, plus any location along the length of the weld where a start and restart is visually noted for a distance of 6 inches (152 mm) on either side of the start/stop location. 10. The connection specific factor to account for peak connection strength, C pr , shall be between 1.15 and 1.35. Calculations shall be submitted to OSHPD for review and approval. 11. For in-plane collectors transferring axial loads into the sideplate connection, coordination between sideplate and the regis- tered design professional in responsible charge will be required to confirm the collector connection is sufficient to transfer the load into the moment frame system. This requirement shall be satisfied by designing the sideplate connections in the first bay of a multi-bay sideplate moment frame or an end bay to have a minimum connection capacity, including combined shear (V u + V g ) and moment (M pr ) demands, of at least 1.2 times the M pr at the plastic hinge location when the axial load, as determined by ASCE 7, Section 12.10.2.1 without Ω o , exceeds 0.1 F y A g of the sideplate beam. 12. A complete frame analysis for gravity and design wind loading using LRFD load combinations in Section 1605A.1 shall be performed including Demand/Capacity Ratios. Frame beam member nominal moment strengths (M n ) used for gravity and design wind loading for the bolted sideplate connection using Class A or Class B faying surfaces shall be taken as 0.80 F y Z for frame beams up to 300 plf and 0.60 F y Z for frame beams greater than 300 plf. 13. For moment frame beams with maximum beam shear greater than 90 percent of the vertical bolt shear capacity, a second- ary check is to be provided to confirm the vertical bolt shear capacities are sufficient. 14. Bolted sideplate connections used on heavy-shallow frame beams for beams greater than 200 plf and shallower than 24 inches (610 mm) in depth shall be considered as an alternative system. 15. Skewed beams shall utilize the link-beam fabrication method with CJP welded splices for skew angles. The skew angle shall be less than 15 degrees. 16. For two-sided bolted sideplate connections sharing the same side plates at the same height and depth across the column, the vertical offset in the beams shall not exceed 10 inches (254 mm).

• CBC § 6-1 Medium relevance — show source text

  Equation 6-1 ( U tc / U ac ) + ( U tw / U aw ) ≤ 1

  where:

  U tc = Total unprotected mass timber ceiling areas. U ac = Allowable unprotected mass timber ceiling area conforming to Exception 1.1 of Section 602.4.2.2.2.

  U tw = Total unprotected mass timber wall areas.

  U aw = Allowable unprotected mass timber wall area conforming to Exception 1.2 of Section 602.4.2.2.2.

  602.4.2.2.4 Separation distance between unprotected mass timber elements. In each dwelling unit or fire area, unprotected portions of mass timber walls shall be not less than 15 feet (4572 mm) from unprotected portions of other walls measured horizontally along the floor.

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  �

  TYPES OF CONSTRUCTION

  602.4.2.3 Floors. The floor assembly shall contain a noncombustible material not less than 1 inch (25 mm) in thickness above the mass timber. Floor finishes in accordance with Section 804 shall be permitted on top of the noncombustible material. Except where unprotected mass timber ceilings are permitted in Section 602.4.2.2.2, the underside of floor assemblies shall be protected in accordance with Section 602.4.1.2.

  602.4.2.4 Roofs. The interior surfaces of roof assemblies shall be protected in accordance with Section 602.4.2.2 except, in nonoccupiable spaces, they shall be treated as a concealed space with no portion left unprotected. Roof coverings in accordance with Chapter 15 shall be permitted on the outside surface of the roof assembly.

  602.4.2.5 Concealed spaces. Concealed spaces shall not contain combustibles other than electrical, mechanical, fire protection, or plumbing materials and equipment permitted in plenums in accordance with the California Mechanical Code, and shall comply with all applicable provisions of Section 718. Combustible construction forming concealed spaces shall be protected in accordance with Section 602.4.1.2.

  602.4.2.6 Shafts. Shafts shall be permitted in accordance with Sections 713 and 718. Both the shaft side and room side of mass timber elements shall be protected in accordance with Section 602.4.1.2.

  602.4.3 Type IV-C. Building elements in Type IV-C construction shall be protected in accordance with Sections 602.4.3.1 through 602.4.3.6. The required fire-resistance rating of building elements shall be determined in accordance with Section 703.2.

  602.4.3.1 Exterior protection. The exterior side of walls of combustible construction shall be protected with noncombustible protection with a minimum assigned time of 40 minutes, as determined in Table 722.7.1(1).

• CBC § 4.2. Medium relevance — show source text

  DCR = Demand-capacity ratio specified in Section A111.4.2.

  f ′ m = Lower bound masonry compressive strength. f sp = Splitting-tensile strength of masonry. F wx = Force applied to a wall at level x, pounds (N). H = Least clear height of opening on either side of a pier, inches (10 [-3] m).

  h/t = Height-to-thickness ratio of URM wall. Height, h, is measured between wall anchorage levels and/or slab-on-grade.

  L = Span of diaphragm between shear walls, or span between shear wall and open front, feet (m). L c = Length of crosswall, feet (m). L i = Effective diaphragm span for an open-front building specified in Section A111.8, feet (m). P = Applied force as determined by standard test method of ASTM C496 or ASTM E519, pounds (N).

  P D = Superimposed dead load at the location under consideration, pounds (N). For determination of the rocking shear capacity, dead load at the top of the pier under consideration shall be used.

  P D+L = Stress resulting from the dead plus actual live load in place at the time of testing, pounds per square inch (kPa). P test = Splitting tensile test load determined by standard test method ASTM C496, pounds (N). P w = Weight of wall, pounds (N). R = Response modification factor for Ordinary plain masonry shear walls in Bearing Wall System from Table 12.2-1 of ASCE 7, where R = 1.5.

  S DS = Design spectral acceleration at short period, in g units. S D1 = Design spectral acceleration at 1-second period, in g units. v a = The shear strength of any URM pier, v m A/1.5 pounds (N). v c = Unit shear strength for a crosswall sheathed with any of the materials given in Table A108.1(1) or Table A108.1(2), pounds per foot (N/m).

  v mL = Shear strength of unreinforced masonry, pounds per square inch (kPa). V aa = The shear strength of any URM pier or wall, pounds (N). V ca = Total shear capacity of crosswalls in the direction of analysis immediately above the diaphragm level being investigated, v c L c , pounds (N).

• CBC § 3.3.44.2 Medium relevance — show source text

  Amend Section 3.3.44.2 and amend publications to read as follows:

  3.3.44.2 Open Station.* A station that is constructed such that it is directly open to the atmosphere and smoke and heat are allowed to disperse directly into the atmosphere.

  The following enclosed areas in open stations are permitted:

  1. Ticket/pass booths not exceeding 150 square feet (13.9 m [2] ) in area. 2. Mechanical and electrical spaces typically not used for human occupancy and necessary for the operation of a fixed guideway transit system. Such spaces shall be limited to two per level. 3. Restrooms not exceeding 150 square feet (13.9 m [2] ) in area. A maximum of four restrooms are permitted per level.

  Add a new definition as 3.3.44.3 to read as follows:

  3.3.44.1.1 Underground Station. A station or portion thereof that is located beneath the surface of the earth or of the water.

  Amend Section 5.2.2.1 to read as follows:

  5.2.2.1 Building construction for all new enclosed stations shall be not less than Type IA, Type IB or Type IIA construction and shall not exceed in area or height the limits specified in the California Building Code Table 503, for the station configuration or as determined by fire hazard analysis of potential fire exposure hazards to the structure.

  Add Section 5.2.2.1.1 –5.2.2.1.3 to read as follows:

  5.2.2.1.1 Underground stations shall be a minimum Type IA or Type IB constructions.

  5.2.2.1.2 Open stations may be of Type IIB construction and shall not exceed in area or height as required by Table 503 for Type IIA.

  5.2.2.1.3 Open at grade stations may be of any construction type allowed by the California Building Code.

  Delete Section 5.2.2.2.

  Amend Section 5.2.4.3 to read as follows:

  5.2.4.3 Ancillary Spaces. Fire resistance ratings of separations between ancillary occupancies shall be established as required by the California Building Code.

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  REFERENCED STANDARDS

  Amend Section 5.2.4.3.1 to read as follows:

  5.2.4.3.1 The following areas shall be separated by a two-hour fire barrier:

  1. Electrical control rooms, auxiliary electrical rooms and associated battery rooms

  2. Trash rooms

  3. Train control rooms and associated battery rooms

  4. Fan rooms

  5. Emergency generator rooms

  Amend Section 5.2.4.5 to read as follows:

  5.2.4.5 Separation Between System and Nonsystem Occupancies.* All station public areas shall be fire separated from adjacent non-system occupancies by a one hour fire barrier, unless otherwise required by other provisions of the California Building Code.

  Amend Section 5.3.1.1 to read as follows:

• CBC § 3.5 Medium relevance — show source text

  Grout pours not terminated at the top of constructed masonry shall comply with TMS 602, Articles 3.5 C.3.a through 3.5 C.3.c. 2. The top of the grout pour shall be in the top course of the constructed masonry. Grout pours not terminated within the top course of the constructed masonry shall comply with TMS 602, Articles 3.5 C.3.a through 3.5 C.3.c. 3. Grout pours in excess of 4 feet (1219 mm) or 5 feet 4 inches (1651 mm) for 10-inch (254 mm) nominal or wider for hollow unit masonry shall be subject to approval of the enforcement agency and the following: a. Grouting shall be done in a continuous pour in lifts not exceeding the requirements of TMS 602, Article 3.5 D. b. The grouting of any section of wall shall be completed in one day with no interruptions greater than one hour. c. Cleanout openings shall be provided at the bottom of each pour of grout.

  TABLE 7—GROUT SPACE REQUIREMENTS	Col2	Col3	Col4
  GROUT TYPE1	MAXIMUM GROUT POUR HEIGHT, FT (M)	MINIMUM CLEAR WIDTH OF GROUT SPACE,2,3 IN. (MM)	MINIMUM CLEAR GROUT SPACE DIMENSIONS **FOR GROUTING CELLS OF HOLLOW UNITS,3 ** IN. × IN. (MM × MM)
  Coarse	1 (0.3)	21/2 (63.5)	2 × 3(50.8× 76.2)
  Coarse	44 (1.22)	21/2 (63.5)	21/2 × 3 (63.5 × 76.2)
  Coarse	12.675 (3.86)	31/2 (88.9)	3 × 35 (76.2 × 76.2)
  1. Coarse grout is defined in ASTM C476. 2. For grouting between masonry wythes. 3. Minimum clear width of grout space and minimum clear grout space dimension are the net dimension of the space determined by subtracting masonry protrusions and the diameters of horizontal reinforcement from the as-built cross section of the grout space. 4. Maximum pour height can be increased to 5.33 feet for 10-inch nominal or wider hollow unit masonry. 5. Maximum pour height can be increased to 16 feet for hollow unit masonry walls with a nominal thickness of 12 inches or more and minimum clear grout space dimensions of 3 in. x 4 in. (76.2 mm x 102 mm).	1. Coarse grout is defined in ASTM C476. 2. For grouting between masonry wythes. 3. Minimum clear width of grout space and minimum clear grout space dimension are the net dimension of the space determined by subtracting masonry protrusions and the diameters of horizontal reinforcement from the as-built cross section of the grout space. 4. Maximum pour height can be increased to 5.33 feet for 10-inch nominal or wider hollow unit masonry. _5.

• CBC § 722.3.2.4 Medium relevance — show source text

  Exception: For exterior walls with a fire separation distance greater than 5 feet (1524 mm), the fire shall be assumed to occur on the interior side only.

  722.3.2.4 Minimum concrete masonry fire-resistance rating. Where the finish applied to a concrete masonry wall contributes to its fire-resistance rating, the masonry alone shall provide not less than one-half the total required fire-resistance rating.

  722.3.2.5 Attachment of finishes. Installation of finishes shall be as follows:

  1. Gypsum wallboard and gypsum lath applied to concrete masonry or concrete walls shall be secured to wood or steel furring members spaced not more than 16 inches (406 mm) on center (o.c.).

  2. Gypsum wallboard shall be installed with the long dimension parallel to the furring members and shall have all joints finished.

  3. Other aspects of the installation of finishes shall comply with the applicable provisions of Chapters 7 and 25.

  722.3.3 Multiwythe masonry walls. The fire-resistance rating of wall assemblies constructed of multiple wythes of masonry materials shall be permitted to be based on the fire-resistance rating period of each wythe and the continuous airspace between each wythe in accordance with the following formula: Equation 7-7 R A = ( R 10.59 + R 20.59 + ... + R n 0.59 + A 1 + A 2 + ... + A n ) 1.7

  where:

  R A = F ire-resistance rating of the assembly (hours).

  R 1, R 2, ..., R n = Fire-resistance rating of wythes for 1, 2, n (hours), respectively. A 1, A 2, ..., A n = 0.30, factor for each continuous airspace for 1, 2, ... n, respectively, having a depth of [1] / 2 inch (12.7 mm) or more between wythes.

  722.3.4 Concrete masonry lintels. Fire-resistance ratings for concrete masonry lintels shall be determined based on the nominal thickness of the lintel and the minimum thickness of concrete masonry or concrete, or any combination thereof, covering the main reinforcing bars, as determined in accordance with Table 722.3.4, or by approved alternate methods.

• CBC § 101.2 Medium relevance — show source text

  Code change proposals submitted for code sections that have a letter designation in front of them will be heard by the respective committee responsible for such code sections. Because different committees hold Committee Action Hearings in different years, proposals for most codes will be heard by committees in both the 2024 (Group A) and the 2025 (Group B) code development cycles. It is very important that anyone submitting code change proposals understands which code development committee is responsible for the section of the code that is the subject of the code change proposal.

  Please visit the ICC website at iccsafe.org/products-and-services/i-codes/code-development/current-code-development-cycle for further information on the Code Development Committee responsibilities as it becomes available.

  Coordination of the I-Codes

  The coordination of technical provisions allows the I-Codes to be used as a complete set of complementary documents. Individual codes can also be used in subsets or as stand-alone documents. Some technical provisions that are relevant to more than one subject area are duplicated in multiple model codes.

  INTRODUCTION TO THE INTERNATIONAL BUILDING CODE

  The International Building Code establishes minimum requirements for building systems using prescriptive and performance-related provisions. It is founded on broad-based principles that make possible the use of new materials and new building designs.

  The IBC is a model code that provides minimum requirements to safeguard the public health, safety and general welfare of the occupants of new and existing buildings and structures. It addresses structural strength, means of egress, sanitation, adequate lighting and ventilation, accessibility, energy conservation and life safety in regard to new and existing buildings, facilities and systems.

  The IBC applies to all occupancies, including one- and two-family dwellings and townhouses that are not within the scope of the IRC . The IRC is referenced for coverage of detached one- and two-family dwellings and townhouses as defined in the exception to Section 101.2 and the definition for “ Townhouse ” in Chapter 2. The IRC can also be used for the construction of live/work units (as

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  defined in Section 508.5) and small bed and breakfast-style hotels where there are five or fewer guestrooms and the hotel is owneroccupied. The IBC applies to all types of buildings and structures unless exempted. Work exempted from permits is listed in Section 105.2.

  ARRANGEMENT AND FORMAT OF THE 2025 CBC

  The format of the CBC allows each chapter to be devoted to a particular subject. The following table shows how the CBC is divided. The subsequent tables show CBC requirements that are correlated with other Codes. The chapter synopses detail the scope and intent of the provisions of the CBC.

  CHAPTER TOPICS	Col2
  CHAPTERS	SUBJECTS
  1, 2	Administration and Definitions
  3	Use and Occupancy Classifications
  4, 31,_ 31A–31F_	Special Requirements for Specific Occupancies or Elements
  5–6	Height and Area Limitations Based on Type of Construction
  7–9	Fire Resistance and Protection Requirements
  10	Requirements for Evacuation
  11A, 11B	Specific Requirements to Allow Use and Access to a Building for Persons with Disabilities
  12, 27,_28,_30	Building Systems, Such as Lighting, HVAC, Elevators
  13	_This chapter is not adopted in California.

• CBC § 1.11.2.3 Medium relevance — show source text

  1.11.2.3 More restrictive fire and panic safety building standards.

  1.11.2.3.1 Any fire protection district organized pursuant to Health and Safety Code Part 2.7 (commencing with Section 13800) of Division 12 may adopt building standards relating to fire and panic safety that are more stringent than those building standards adopted by the State Fire Marshal and contained in the California Building Standards Code. For these purposes, the district board shall be deemed a legislative body and the district shall be deemed a local agency. Any changes or modifications that are more stringent than the requirements published in the California Building Standards Code relating to fire and panic safety shall be subject to Section 1.1.8.1.

  1.11.2.3.2 Any fire protection district that proposes to adopt an ordinance pursuant to this section shall, not less than 30 days prior to noticing a proposed ordinance for public hearing, provide a copy of that ordinance, together with the adopted findings made pursuant to Section 1.11.2.3.1, to the city, county, or city and county where the ordinance will apply. The city, county, or city and county may provide the district with written comments, which shall become part of the fire protection district’s public hearing record.

  1.11.2.3.3 The fire protection district shall transmit the adopted ordinance to the city, county, or city and county where the ordi- nance will apply. The legislative body of the city, county, or city and county may ratify, modify or deny an adopted ordinance and transmit its determination to the district within 15 days of the determination. Any modification or denial of an adopted ordinance shall include a written statement describing the reasons for any modifications or denial. No ordinance adopted by the district shall be effective until ratification by the city, county, or city and county where the ordinance will apply. Upon ratification of an adopted ordinance, the city, county or city and county shall file a copy of the findings of the district, and any findings of the city, county, or city and county, together with the adopted ordinance expressly marked and identified to which each finding refers, in accordance with Section 1.1.8.1(3).

  1.11.2.4 Request for alternate means of protection. Requests for approval to use an alternative material, assembly or materials, equipment, method of construction, method of installation of equipment or means of protection shall be made in writing to the enforcing agency by the owner or the owner’s authorized representative and shall be accompanied by a full statement of the condi- tions. Sufficient evidence or proof shall be submitted to substantiate any claim that may be made regarding its conformance. The enforcing agency may require tests and the submission of a test report from an approved testing organization as set forth in Title 19, California Code of Regulation, to substantiate the equivalency of the proposed alternative means of protection.

  When a request for alternate means of protection involves hazardous materials, the authority having jurisdiction may consider implementation of the findings and recommendations identified in a Risk Management Plan (RMP) developed in accordance with Title 19, Division 5, Chapter 2, Article 3.

  Approval of a request for use of an alternative material, assembly of materials, equipment, method of construction, method of installation of equipment or means of protection made pursuant to these provisions shall be limited to the particular case covered by request and shall not be construed as establishing any precedent for any future request.

• CBC § 12.1 Medium relevance — show source text

  12.1|||X|||||||||||||||||||||| |1705.12.2|||X|||||||||||||||||||||| |1705.13.1.1|||||||||||X|X|||X|||||||||| |1705.13.1.2|||||||||||X|X|||X|||||||||| |1705.13.2|||X|||||||||||||||||||||| |1705.13.3|||X|||||||||||||||||||||| |1705.14.1.1|||||||||||X|X|||X|||||||||| |1705.14.1.2|||||||||||X|X|||X|||||||||| |1705.14.2|||||||||||X|X|||X|||||||||| |1705.14.3.1|||||||||||X|X|||X|||||||||| |1705.15|||X|||||||||||||||||||||| |1705.16|||X|||||||||||||||||||||| |1705.18|||X||||||||X|X|||X|||||||||| |1705.19_ –_1705.20|||X|||||||||||||||||||||| |1707.1|X|||X|X|||||||||||||||||||| |1710|||||||||||X|X|||X||||||||||

  The state agency does not adopt sections identified with the following symbol: The Office of the State Fire Marshal’s adoption of this chapter or individual sections is applicable to structures regulated by other state agencies pursuant to Section 1.11.

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  17 SPECIAL INSPECTIONS AND TESTS

  User notes:

  About this chapter: Chapter 17 provides a variety of procedures and criteria for testing materials and assemblies, and labeling materials and assemblies. Its key purposes are to establish where additional inspections/observations and testing must be provided, and the submittals and verifications that must be provided to the building official. This chapter expands on the inspections of Chapter 1 by requiring special inspection by a qualified individual where indicated and, in some cases, structural observation by a registered design professional. Quality assurance measures that verify proper assembly of structural components and the suitability of the installed materials are intended to provide a building that, once constructed, complies with the minimum structural and fire-resistance code requirements as well as the approved design. To determine this compliance often requires frequent inspections and testing at specific stages of construction.

  ICC code development note: Code change proposals to sections preceded by the designation [BF] will be considered by the IBC—Fire Safety Code Development Committee during the 2024 (Group A) Code Development Cycle. Sections preceded by the designation [F] will be considered by the International Fire Code Development Committee during the 2024 (Group A) Code Development Cycle. All other code change proposals will be considered by the IBC—Structural Code Development Committee during the Group B cycle.

  SECTION 1701—GENERAL

  1701.1 Scope. The provisions of this chapter shall govern the quality, workmanship and requirements for materials covered. Materials of construction and tests shall conform to the applicable standards listed in this code.

  1701.1.1 Application. [OSHPD] The scope of application of Chapter 17 is as follows:

• CBC § 101.4.8 Medium relevance — show source text

  [OSHPD 1R, 2, 4 & 5] The provisions of the California Existing Building Code, Chapters 2, 3, 4 and 5 shall apply to all matters govern- ing the repairs, alterations, change of occupancy, additions and relocation of existing structures and portions thereof under OSHPD jurisdiction.

  101.4.8 Wildland-urban interface. The provisions of Part 7, the California Wildland-Urban Interface Code shall apply to buildings and structures built in the wildland-urban interface (WUI) or a Fire Hazard Severity Zone.

  SECTION 102—APPLICABILITY

  [A] 102.1 General. Where there is a conflict between a general requirement and a specific requirement, the specific requirement shall be applicable. Where, in any specific case, different sections of this code specify different materials, methods of construction or other requirements, the most restrictive shall govern.

  [A] 102.2 Other laws. The provisions of this code shall not be deemed to nullify any provisions of local, state or federal law.

  [A] 102.3 Application of references. References to chapter or section numbers, or to provisions not specifically identified by number, shall be construed to refer to such chapter, section or provision of this code.

  [A] 102.4 Referenced codes and standards. The codes and standards referenced in this code shall be considered to be part of the requirements of this code to the prescribed extent of each such reference and as further regulated in Sections 102.4.1 through 102.4.4.

  [A] 102.4.1 Conflicts. Where conflicts occur between provisions of this code and referenced codes and standards, the provisions of this code shall apply.

  [A] 102.4.2 Provisions in referenced codes and standards. Where the extent of the reference to a referenced code or standard includes subject matter that is within the scope of this code or the California Codes specified in Section 101.4, the provisions of this code or the California Codes specified in Section 101.4, as applicable, shall take precedence over the provisions in the referenced code or standard.

  102.4.3 Code references. [OSHPD 1, 1R, 2, 3, 4, 5 & 6, DSA-SS & DSA-SS/CC] All reference to International Codes or other similar codes in referenced standards shall be replaced by equivalent provisions in the California Building Standards Codes.

  102.4.4 Reference in standards. [OSHPD 1, 1R, 2, 3, 4, 5 & 6, DSA-SS & DSA-SS/CC] All references listed in reference standards shall be replaced by referenced standards listed in Chapter 35 of this code, where applicable, and shall include all amendments to the reference standards in this code.

  [A] 102.5 Partial invalidity. In the event that any part or provision of this code is held to be illegal or void, this shall not have the effect of making void or illegal any of the other parts or provisions.

  [A] 102.6 Existing structures. The legal occupancy of any structure existing on the date of adoption of this code shall be permitted to continue without change, except as otherwise specifically provided in this code, the California Existing Building Code or the Cali- fornia Fire Code .