CRC · California Residential Code
Scope & application of Chapter 2
Chapter 2 is the CRC’s definitions chapter: it sets the meanings, grammatical rules, and cross‑code references that determine how code requirements are interpreted.
Last reviewed: July 6, 2026
Overview
Chapter 2 of the California Residential Code is the code’s definitions chapter — the repository of terms and phrasing that establish how the rest of the code is read and applied. It states that, unless otherwise expressly noted, words and terms used in the code have the meanings given in this chapter (see §R201.1).
Because code language is technical, Chapter 2 matters: definitions control interpretation, resolve conflicts, and point users to other California codes when terms are defined elsewhere (see §R201.3). Chapter 2 also contains the body of general definitions (for example, §R202) that the rest of the Residential Code and its enforcement rely on.
Key provisions to know when using this chapter include §R201.1 (scope of the definitions), §R201.2 (interchangeability and grammatical rules), §R201.3 (terms defined in other codes), and the general definitions collected at §R202. These sections orient users to when a defined term controls and where to look if a term is not defined here.
In this section
Code references
Grounded in the retrieved California Residential Code — click a citation to read the verbatim passage:
CRC § 601.1.1 High relevance — show source text
601.1.1 Compliance with other alternatives. Alterations, additions and changes of occupancy to existing structures shall comply with the provisions of Chapters 7 through 11 or with one of the alternatives provided in Section 301.3.
601.2 Work area. The work area, as defined in Chapter 2, shall be identified on the construction documents.
SECTION 602—ALTERATION—LEVEL 1
602.1 Scope. Level 1 alterations include the removal and replacement or the covering of existing materials, elements, equipment or fixtures using new materials, elements, equipment or fixtures that serve the same purpose.
602.2 Application. Level 1 alterations shall comply with the provisions of Chapter 7.
SECTION 603—ALTERATION—LEVEL 2
603.1 Scope. Level 2 alterations include the addition or elimination of any door or window, the reconfiguration or extension of any system, or the installation of any additional equipment, and shall apply where the work area is equal to or less than 50 percent of the building area.
Exception: The movement or addition of nonfixed and movable fixtures, cases, racks, counters and partitions not over 5 feet 9 inches (1753 mm) in height shall not be considered a Level 2 alteration.
603.2 Application. Level 2 alterations shall comply with the provisions of Chapter 7 for Level 1 alterations as well as the provisions of Chapter 8.
SECTION 604—ALTERATION—LEVEL 3
604.1 Scope. Level 3 alterations apply where the work area exceeds 50 percent of the building area.
604.2 Application. Level 3 alterations shall comply with the provisions of Chapters 7 and 8 for Level 1 and 2 alterations, respectively, as well as the provisions of Chapter 9.
SECTION 605—CHANGE OF OCCUPANCY
605.1 Scope. Change of occupancy provisions apply where the activity is classified as a change of occupancy as defined in Chapter 2.
605.2 Application. Changes of occupancy shall comply with the provisions of Chapter 10.
SECTION 606—ADDITIONS
606.1 Scope. Provisions for additions shall apply where work is classified as an addition as defined in Chapter 2.
606.2 Application. Additions to existing buildings shall comply with the provisions of Chapter 11.
SECTION 607—HISTORIC BUILDINGS
607.1 Scope. The provisions of the California Historical Building Code (Part 8, Title 24, C.C.R) shall apply to qualified historical buildings or properties.
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CALIFORNIA EXISTING BUILDING CODE – MATRIX ADOPTION TABLE
CHAPTER 7 – ALTERATIONS—LEVEL 1
(Matrix Adoption Tables are nonregulatory, intended only as an aid to the code user. See Chapter 1 for state agency authority and building applications.)
CRC § 2025 Medium relevance — show source text
It is important to understand that the IRC contains coverage for what is conventional and common in residential construction practice. While the IRC will provide all of the needed coverage for most residential construction, it might not address construction practices and systems that are atypical or rarely encountered in the industry. Therefore, the IRC contains several references to other codes either as an alternative to the provisions of the IRC or where the IRC lacks coverage for a particular type of structure, design, system, appliance or method of construction. In other words, the IRC is meant to be all inclusive for typical residential construction and it relies on other codes only where alternatives are desired or where the code lacks coverage for the uncommon aspect of residential construction. Of course, the IRC constantly evolves to address new technologies and construction practices that were once uncommon, but are now common.
The IRC is unique in that much of it, including Chapters 3 through 9 and Chapters 34 through 43, is presented in an ordered format that is consistent with the normal progression of construction, starting with the design phase and continuing through the final trimout phase. This is consistent with the “cookbook” philosophy of the IRC.
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Arrangement and Format of the 2025 CRC
The CRC is divided into nine main parts, specifically: Part I—Administrative, Part II—Definitions, Part III—Building Planning and Construction, Part IV—Energy Conservation, Part V—Mechanical, Part VI—Fuel Gas, Part VII—Plumbing, Part VIII—Electrical and Part IX—Referenced Standards. Parts IV through VIII of IRC are not adopted in California and replaced with references to appropriate parts of Title 24. The following provides a brief description of the content of each chapter and appendix of the CRC:
Chapter 1 Scope and Administration.
Chapter 1 establishes the limits of applicability of the code and describes how the code is to be applied and enforced. The provisions of Chapter 1 establish the authority and duties of the code official appointed by the authority having jurisdiction and also establish the rights and privileges of the design professional, contractor and property owner.
Chapter 2 Definitions.
Chapter 2 is the repository of the definitions of terms used in the body of the code. The user of the code should be familiar with and consult this chapter because the definitions are essential to the correct interpretation of the code and because the user may not be aware that a term is defined.
Chapter 3 Building Planning.
Chapter 3 provides guidelines for a minimum level of structural integrity, life safety, fire safety and livability for inhabitants of dwelling units regulated by this code. Chapter 3 is a compilation of the code requirements specific to the building planning sector of the design and construction process. This chapter sets forth code requirements dealing with light, ventilation, sanitation, minimum room size, ceiling height and environmental comfort. Chapter 3 establishes life-safety provisions including limitations on glazing used in hazardous areas, specifications on stairways, use of guards at elevated surfaces, window and fall protection, and rules for means of egress. Snow, wind and seismic design live and dead loads and flood-resistant construction, as well as solar energy systems are addressed in this chapter.
Chapter 4 Foundations.
CRC § 2-3 Medium relevance — show source text
VACUUM||||X|||||||||||||||||||| |REPAIR||||X|||||||||||||||||||| |REROOFING||||X|||||||||||||||||||| |RESIDENTIAL CARE FACILITY FOR THE
CHRONICALLY ILL (RCF/CI)|||X||||||||||||||||||||| |RESIDENTIAL CARE FACILITY FOR THE
ELDERLY (RCFE)|||X||||||||||||||||||||| |RESIDENTIAL FACILITY (RF)|||X||||||||||||||||||||| |RESTRAINT|||X||||||||||||||||||||| |ROOF ASSEMBLY||||X|||||||||||||||||||| |ROOF RECOVER||||X|||||||||||||||||||| |ROOF REPAIR||||X|||||||||||||||||||| |ROOF REPLACEMENT||||X|||||||||||||||||||| |SKYLIGHTS AND SLOPED GLAZING||||X|||||||||||||||||||| |SLEEPING UNIT||||X|||||||||||||||||||| |STATE-OWNED/LEASED BUILDING|||X||||||||||||||||||||| |SUBSTANTIAL IMPROVEMENT||||X|||||||||||||||||||| |SUNROOM||||X|||||||||||||||||||| |TERMINALLY ILL|||X||||||||||||||||||||| |TESTING AGENCY||||X|||||||||||||||||||| |THIRD-PARTY CERTIFICATION
AGENCY||||X|||||||||||||||||||| |THIRD-PARTY CERTIFIED||||X|||||||||||||||||||| |TODDLER|||X||||||||||||||||||||| |VENT||||X|||||||||||||||||||| |VENT CONNECTOR||||X|||||||||||||||||||| |VENT SYSTEM||||X|||||||||||||||||||| |VENTILATION||||X|||||||||||||||||||| |WATER HEATER||||X|||||||||||||||||||| |WHOLE-HOUSE MECHANICAL
VENTILATION SYSTEM||||X|||||||||||||||||||| |WILDLAND-URBAN INTERFACE (WUI)|||X|||||||||||||||||||||The state agency does not adopt sections identified with the following symbol: †
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Part II—Definitions
2 DEFINITIONS
User notes:
About this chapter: Codes, by their very nature, are technical documents. Every word, term and punctuation mark can add to or change the meaning of a technical requirement. It is necessary to maintain a consensus on the specific meaning of each term contained in the code. Chapter 2 performs this function by stating clearly what specific terms mean for the purpose of the code.
ICC code development note: Code change proposals to definitions in this chapter preceded by a bracketed letter are considered by the IRC—Building Code Development Committee [RB], the IRC—Mechanical/Plumbing Code Development Committee [MP] or the IECC—Residential Code Development Committee [RE] during the Group B (2025) Code Development Cycle.
SECTION R201—GENERAL
R201.1 Scope. Unless otherwise expressly stated, the following words and terms shall, for the purposes of this code, have the meanings indicated in this chapter.
CRC § 317.3.2 Medium relevance — show source text
2. There are changes in risk category. 3. The modification to the structural components increases the seismic forces in or strength requirements of any structural component of the existing structure by more than 10 percent cumulative since the original construction, unless the component has the capacity to resist the increased forces determined in accordance with Section 319. If the building’s seismic base shear capacity has been increased since the original construction, the percent change in base shear may be calculated relative to the increased value.
4. Structural elements need repair where the damage has reduced the lateral-load-resisting capacity of the structural system by more than 10 percent. 5. Changes in live or dead load increase story shear by more than 10 percent.
317.3.2 Public school buildings. [DSA-SS] For public schools, the provisions of Section 317 apply when required in accordance with Sections 4-307 and 4-309(c) of the California Administrative Code.
317.3.3 Community college buildings. [DSA-SS/CC] For community colleges, the provisions of Section 317 apply when required in accordance with Sections 4-307 and 4-309(c) of the California Administrative Code.
317.4 Evaluation required. If the criteria in Section 317.3 apply to the project under consideration, the design professional of record shall provide an evaluation in accordance with Section 317 to determine the seismic performance of the building in its current configuration and condition. If the structure's seismic performance as required by Section 317.5 is evaluated as satisfactory and the peer reviewer(s), when Method B of Section 321 is used, concur, then no structural retrofit is required.
317.5 Minimum seismic design performance levels for structural and nonstructural components. Following the notations of ASCE 41, the seismic requirements for design and assessment are based upon a prescribed Seismic Hazard Level (BSE-1N, BSE-2N, BSE-1E, BSE-R or BSE-C), a specified structural performance level (S-1 through S-5) and a nonstructural performance level (N-A through N-E). The minimum seismic performance criteria are given in Table 317.5 according to the Building Regulatory Authority and the Risk Category as determined in Chapter 16 of the California Building Code or by the regulatory authority. The building shall be evaluated in accordance with a Tier 3 Systematic Evaluation and Retrofit per ASCE 41 Chapter 6 for both the Level 1 and Level 2 performance levels, and the more restrictive requirements shall apply.
Exception: If the floor area of an addition is greater than the larger of 50 percent of the floor area of the original building or 1,000 square feet (93 m [2] ), then the Table 317.5 entries for BSE-R (or BSE-1E) and BSE-C are replaced by BSE-1N and BSE-2N, respectively.
|TABLE 317.5—SEISMIC PERFORMANCE REQUIREMENTS2,
CRC § 2.4 Medium relevance — show source text
Court Emergency escape and rescue openings R319.1, R319.2.4 Means of egress R318.1 Natural light R325.1.1 Covering Exterior R703
Interior R702 Roof Chapter 9 Wall Chapter 7 Crawl Space R408
Access R408.4
Damper Fireplace R1001.7.1 Dampproofing R406 Day Care Appendix BD Defined R202 Large family day-care homes R336 Dead Loads R301.4
Decay Protection against R304 Deck
Attachment R318.5 Supported by exterior wall R507 Wood/plastic composite boards R507.2.2
Definitions Building R202 Mechanical system R202 Plumbing R202 Design Criteria R301 Alternative provisions R301.1.1 Application R301.1 Climatic and geographic R301.2 Dead load R301.4
Deflection R301.6 Engineered design R301.1.3
Accessibility R322 Accessory Dwelling Unit R202 Authority to Enforce Automatic Fire Sprinkler Systems 1.8.9.1, R313.2 Accessory Structure Elevations R306.3.2
Energy R330.5 Exterior walls R302.1
Scope R101.2 Addition (see also Existing Buildings) Carbon monoxide alarms R311.2.2 Change of occupancy R110.1 Construction R302.2.3
Frost protection R403.1.4.1 Scope R101.2, R102.6.1 Smoke alarms R310.2.2 Address (Site) R308 Administration, California Chapter 1, Division 1
General 1.1 Dept. of Housing and Community Development 1.8 Office of the State Fire Marshal 1.11 Administration, Division II Chapter 1 Applicability R102 Certificate of occupancy R110 Construction documents R106 Department of building safety R103 Duties and Powers R104
Fees R106
Inspections R109 Means of appeals R112 Permits R105, R105.5.1 Purpose R101.3 Service utilities R111 Stop work order R114 Temporary structures and uses R107 Violations R113 Aging-in-place Design and Fall Prevention R327
Doorbell buttons R327.1.4 Electrical receptacle outlet, switch and control heights R327.1.2 Interior doors R327.1.3 Reinforcement for grab bars R327.1.1 Allowable Spans Of floor joists R502.3, R505.3.2 Of headers R602.7, R603.6 Of rafters and ceiling joists R802.4, R802.5, R804.3.1, R804.3.2 Alternate Materials (see Materials) R104.11 Alterations (see Existing Buildings) Anchor Bolts R403.1.6
Appeal Board of 1.8.8, Appendix AA Means of 1.8.8, R112 Appliance Flue area R1003.14
CRC § 2.3.1 Medium relevance — show source text
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Concrete Capillary break R506.2.3.1 Compressive strength R402.2 Floors (on ground) R506 Tile (roof) R905.3 Weathering Figure R301.2(1), R402.2 Construction
3D-printed Appendix BM Cavity wall masonry R608 Cob Appendix BK Extended plate walls Appendix BN Flood-resistant R306
Floors Chapter 5 Footings R403 Foundation material R402
Foundation walls R404
Foundations Chapter 4 Hemp-lime Appendix BL Masonry R606, R607, R608, R610 Pollutant control R340 Roofs Chapter 8 Steel framing R505, R603, R804 Strawbale Appendix BJ Straw-clay Appendix BI Walls Chapter 6 Waste R334.1 Wood framing R502, R602, R802 Construction Documents R106, R306.3.9
Court Emergency escape and rescue openings R319.1, R319.2.4 Means of egress R318.1 Natural light R325.1.1 Covering Exterior R703
Interior R702 Roof Chapter 9 Wall Chapter 7 Crawl Space R408
Access R408.4
Damper Fireplace R1001.7.1 Dampproofing R406 Day Care Appendix BD Defined R202 Large family day-care homes R336 Dead Loads R301.4
Decay Protection against R304 Deck
Attachment R318.5 Supported by exterior wall R507 Wood/plastic composite boards R507.2.2
Definitions Building R202 Mechanical system R202 Plumbing R202 Design Criteria R301 Alternative provisions R301.1.1 Application R301.1 Climatic and geographic R301.2 Dead load R301.4
Deflection R301.6 Engineered design R301.1.3
Accessibility R322 Accessory Dwelling Unit R202 Authority to Enforce Automatic Fire Sprinkler Systems 1.8.9.1, R313.2 Accessory Structure Elevations R306.3.2
Energy R330.5 Exterior walls R302.1
Scope R101.2 Addition (see also Existing Buildings) Carbon monoxide alarms R311.2.2 Change of occupancy R110.1 Construction R302.2.3
CRC § 1.13 Medium relevance — show source text
DWR Department of Water Resources (see Section 1.13 of Chapter 1 of the California Plumbing Code in Part 5 of Title 24)
The state agencies are available to answer questions about their adoptions. Contact information is provided on page iv of this code.
To learn more about the use of this code refer to pages viii and ix. Training materials on the application and use of this code are available at the website of the California Building Standards Commission www.dgs.ca.gov/bsc.
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California Matrix Adoption Tables
Format of the California Matrix Adoption Tables
The matrix adoption tables, examples of which follow, are non-regulatory aids intended to show the user which state agencies have adopted and/or amended given sections of the model code. An agency's statutory authority for certain occupancies or building applications determines which chapter or section may be adopted, repealed, amended or added. See Chapter 1, Division I, Sections 1.2 through 1.14 for agency authority, building applications and enforcement responsibilities.
The side headings identify the scope of state agencies’ adoption as follows:
Adopt the entire IRC chapter without state amendments.
If there is an “X” under a particular state agency’s acronym on this row; this means that particular state agency has adopted the entire model code chapter without any state amendments.
Example:
CALIFORNIA RESIDENTIAL CODE-MATRIX ADOPTION TABLE
CHAPTER 2 – DEFINITIONS AND ABBREVIATIONS (Matrix Adoption Tables are nonregulatory, intended only as an aid to the user. See Chapter 1 for state agency authority and building applications.)
Adopting agency BSC BSC-
CGSFM HCD Col6 Col7 DSA Col9 Col10 OSHPD Col12 Col13 Col14 Col15 Col16 Col17 BSCC DPH AGR DWR CA SL SLC Adopting agency BSC BSC-
CGSFM 1 2 1-AC AC SS SS/CC 1 1R 2 3 4 5 6 6 6 6 6 6 6 6 Adopt entire chapter X Adopt entire chapter as
amended (amended
sections listed below)Adopt only those sections
that are listed belowS A M P L E Chapter/Section Adopt the entire IRC chapter as amended, state-amended sections are listed below:
If there is an “X” under a particular state agency’s acronym on this row, it means that particular state agency has adopted the entire model code chapter; with state amendments.
CRC § 2.25 Medium relevance — show source text
00|2.25|0.70|DR|3.70|1.05|DR|DR| |Minimum 33
mil steel
furring or
minimum
1x wood
furringc|33 mil cold-
formed steel
stud|#10 screw|Steel thick-
ness plus 3
threads|16|3.85|1.45|DR|DR|3.40|DR|DR|DR| |Minimum 33
mil steel
furring or
minimum
1x wood
furringc|33 mil cold-
formed steel
stud|#10 screw|Steel thick-
ness plus 3
threads|24|3.40|DR|DR|DR|2.70|DR|DR|DR| |Minimum 33
mil steel
furring or
minimum
1x wood
furringc|43 mil or
thicker cold-
formed steel
stud|#8 Screw|Steel thick-
ness plus 3
threads|12|3.00|1.80|DR|DR|3.00|0.65|DR|DR| |Minimum 33
mil steel
furring or
minimum
1x wood
furringc|43 mil or
thicker cold-
formed steel
stud|#8 Screw|Steel thick-
ness plus 3
threads|16|3.00|1.00|DR|DR|2.85|DR|DR|DR| |Minimum 33
mil steel
furring or
minimum
1x wood
furringc|43 mil or
thicker cold-
formed steel
stud|#8 Screw|Steel thick-
ness plus 3
threads|24|2.85|DR|DR|DR|2.20|DR|DR|DR| |Minimum 33
mil steel
furring or
minimum
1x wood
furringc|43 mil or
thicker cold-
formed steel
stud|#10 screw|Steel thick-
ness plus 3
threads|12|4.00|3.85|2.80|1.80|4.00|3.05|1.50|DR| |Minimum 33
mil steel
furring or
minimum
1x wood
furringc|43 mil or
thicker cold-
formed steel
stud|#10 screw|Steel thick-
ness plus 3
threads|16|4.00|3.30|1.95|0.60|4.00|2.25|DR|DR| |Minimum 33
mil steel
furring or
minimum
1x wood
furringc|43 mil or
thicker cold-
formed steel
stud|#10 screw|Steel thick-
ness plus 3
threads|24|4.00|2.25|DR|DR|4.00|0.65|DR|DR| |For SI: 1 inch = 25.4 mm, 1 pound per square foot (psf) = 0.0479 kPa, 1 pound per square inch = 0.00689 MPa.
DR = Design Required, o.c. = on center.
a. Wood furring shall be spruce-pine-fir or any softwood species with a specific gravity of 0.42 or greater.CRC § 6-3 Medium relevance — show source text
” Division 1, “Housing and Community](https://govt.westlaw.com/calregs/Document/I63FDC8F082C911E2BD79AA7206D382EB?viewType=FullText&originationContext=documenttoc&transitionType=CategoryPageItem&contextData=(sc.Default)) Development,” Chapter 2, “Mobilehome Parks and Installations,” Article 7, “MH-Unit and Commercial Modular Installations and Facilities,” Section 1333, “Foundation Systems.”
B. PG&E will make an exception and install utility services to a location where mobile homes may be moved, including mobile home parks, under certain, specific conditions.
The mobile homes must be served by meter pedestals or other PG&E-approved services and the meter facilities must be installed at a fixed location.
Applicants are responsible for connecting their mobile homes to those fixed locations and to the meter pedestals or other utility facilities.
See Numbered Document 052521, “Electrical Service Requirements for Mobile Home Developments,” for more information and for specifications. This PG&E document is included in Appendix C, “Electric and Gas Engineering Documents,” and also in PG&E’s Electric Underground Construction Manual, Book 1.
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Section 6, Electric Metering: Residential
6.4. Services
6.4.1. Single Meter: Underground Service
A. Services, 0 Amps Through 225 Amps, Single Phase
Figure 6-1, “Typical Underground Service-Termination Enclosure, Combination Meter-Socket Panel (Residential, 0 Amps−225 Amps),” on Page 6-5, illustrates a single, underground, residential, single-phase meter panel (i.e., 4 terminal for a 120/240-volt service and 5 terminal for a 120/208-volt service).
CRC § 1-16 Medium relevance — show source text
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DIVISION II SCOPE AND ADMINISTRATION
User notes:
About this chapter: Chapter 1 Division II establishes the limits of applicability of this code and describes how the code is to be applied and enforced. Chapter 1 Division II is in two parts: Part 1—Scope and Application (Sections R101–R102) and Part 2—Administration and Enforcement (Sections R103–R114). Section R101 identifies which buildings and structures come under its purview and references other I-Codes as applicable. Standards and codes are scoped to the extent referenced (see Section R102.4).
The one- and two-family dwelling code is intended to be adopted as a legally enforceable document, and it cannot be effective without adequate provisions for its administration and enforcement. The provisions of Chapter 1 establish the authority and duties of the building official appointed by the authority having jurisdiction and also establish the rights and privileges of the design professional, contractor and property owner.
Division II is not adopted by the Department of Housing and Community Development except where specifically indicated. Note: Specific sections of Chapter 1, Division II adopted by the State Fire Marshal will be indicated in the Matrix Adoption Table.
PART 1—SCOPE AND APPLICATION
SECTION R101—SCOPE AND GENERAL REQUIREMENTS
R101.1 Title. These provisions shall be known as the Residential Code for One- and Two-family Dwellings of [ NAME OF JURISDICTION ], and shall be cited as such and will be referred to herein as “this code.”
R101.2 Scope. The provisions of this code shall apply to the construction, alteration, movement, enlargement, replacement, repair, equipment, use and occupancy, location, removal and demolition of detached one- and two-family dwellings and townhouses not more than three stories above grade plane in height with a separate means of egress and their accessory structures not more than three stories above grade plane in height.
Exception: The following shall be permitted to be constructed in accordance with this code where provided with an automatic sprinkler system complying with Section R309 :
Live/work units located in townhouses and complying with the requirements of Section 508.5 of the California Building Code.
Owner-occupied lodging houses with five or fewer guestrooms.
A care facility with five or fewer persons receiving custodial care within a dwelling unit.
A care facility with five or fewer persons receiving medical care within a dwelling unit.
A day care facility for five or fewer persons of any age receiving care within a dwelling unit.
R101.2.1 Appendices. Provisions in the appendices shall not apply unless specifically adopted.
R101.3 Purpose. The purpose of this code is to establish minimum requirements to provide a reasonable level of safety, health and general welfare through affordability, structural strength, means of egress, stability, sanitation, light and ventilation, energy conservation and safety to life and property from fire and other hazards and to provide a reasonable level of safety to firefighters and emergency responders during emergency operations.
SECTION R102—APPLICABILITY
R102.1 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.
CRC § 6.44 Medium relevance — show source text
17|6.44|6.66|6.99|7.23|7.40| |45|75|30|6.08|6.34|6.54|6.84|7.06|7.22| |44|75|31|6.00|6.24|6.43|6.71|6.90|7.05| |43|75|32|5.91|6.15|6.33|6.58|6.76|6.89| |42|75|33|5.83|6.07|6.23|6.47|6.63|6.75| |41|75|34|5.74|5.98|6.14|6.36|6.51|6.62| |46|80|34|5.74|5.98|6.14|6.36|6.51|6.62| |40|75|35|5.65|5.90|6.05|6.26|6.40|6.51| |45|80|35|5.65|5.90|6.05|6.26|6.40|6.51| |44|80|36|5.56|5.81|5.97|6.17|6.30|6.40| |43|80|37|5.46|5.73|5.89|6.08|6.21|6.30| |42|80|38|5.35|5.64|5.80|6.00|6.12|6.20| |41|80|39|5.23|5.54|5.71|5.91|6.03|6.11| |46|85|39|5.23|5.54|5.71|5.91|6.03|6.11| |40|80|40|5.10|5.44|5.62|5.83|5.95|6.03| |45|85|40|5.10|5.44|5.62|5.83|5.95|6.03| |44|85|41|4.96|5.33|5.55|5.74|5.86|5.94| |43|85|42|4.81|5.21|5.42|5.66|5.78|5.86| |42|85|43|4.63|5.08|5.31|5.56|5.69|5.77| |41|85|44|4.45|4.93|5.19|5.46|5.60|5.69| |40|85|45|4.24|4.77|5.06|5.35|5.50|5.59| |Condenser DT2|Condenser DT2|Condenser DT2|14.04|11.23|9.36|7.02|5.62|4.68| |1. LIFT = Entering Condenser Water Temperature (°F) – Leaving Chilled Water Temperature (°F)
2.CRC § 1-33 Medium relevance — show source text
112 Service Utilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-33
113 Means of Appeals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-33
114 Violations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-34
115 Stop Work Order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-34
CHAPTER 2 DEFINITIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1
201 General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
202 Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
CHAPTER 3 OCCUPANCY CLASSIFICATION AND USE . . . . .3-1
301 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
302 Occupancy Classification and Use Designation . . . . 3-3
303 Assembly Group A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
304 Business Group B. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
305 Educational Group E . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
306 Factory Group F . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
307 High-Hazard Group H . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
308 Institutional Group I . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13
309 Mercantile Group M. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14
310 Residential Group R. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15
311 Storage Group S. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17
312 Utility and Miscellaneous Group U . . . . . . . . . . . . . . 3-18
313 Laboratories Group L [SFM]. . . . . . . . . . . . . . . . . . . . . . .3-19
Frequently asked questions
What does §R201.1 actually say about scope?
§R201.1 states that, unless otherwise expressly noted, the words and terms used in the code have the meanings indicated in Chapter 2 — in short, Chapter 2 is the authoritative source for defined terms used throughout the CRC.
If a term isn’t in Chapter 2, where do I look?
§R201.3 directs users to terms defined in other California codes; if a term is not defined in Chapter 2 or elsewhere by statute, ordinary dictionary meanings apply as the context implies.
Are grammatical rules for interpretation included in Chapter 2?
Yes — §R201.2 covers interchangeability (tense, gender, singular/plural), which the code uses to interpret text consistently.
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