When are floor/roof design loads required to be posted?

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

• CBC § 105.6 High relevance — show source text

  [A] 105.6 Suspension or revocation. The building official is authorized to suspend or revoke a permit issued under the provisions of this code wherever the permit is issued in error or on the basis of incorrect, inaccurate or incomplete information, or in violation of any ordinance or regulation or any of the provisions of this code.

  [A] 105.7 Placement of permit. The building permit or copy shall be kept on the site of the work until the completion of the project.

  SECTION 106—FLOOR AND ROOF DESIGN LOADS

  [A] 106.1 Live loads posted. In commercial or industrial buildings, for each floor or portion thereof designed for live loads exceeding 50 psf (2.40 kN/m [2] ), such design live loads shall be conspicuously posted by the owner or the owner’s authorized agent in that part of each story in which they apply, using durable signs. It shall be unlawful to remove or deface such notices. [DSA-SS, DSA-SS/CC] These posting requirements also apply to school and state-owned essential services buildings as regulated by DSA.

  106.1.1 Snow load posting. [OSHPD 1, 1R, 2, 4 & 5] Snow loads used in design shall be posted as for live loads.

  106.1.2 Snow load posting. [DSA-SS, DSA-SS/CC] When design snow loads at exterior balconies, decks and other elevated walking surfaces exceed 50 psf, the design snow loads shall be posted as for live loads. When design roof (not ground) snow loads exceed 20 psf, the roof design snow loads for each roof level of the building shall similarly be conspicuously posted with signs stating the maxi- mum design roof snow loads.

  [A] 106.2 Issuance of certificate of occupancy. A certificate of occupancy required by Section 111 shall not be issued until the floor load signs, required by Section 106.1, have been installed.

  [A] 106.3 Restrictions on loading. It shall be unlawful to place, or cause or permit to be placed, on any floor or roof of a building, structure or portion thereof, a load greater than is permitted by this code.

  SECTION 107—CONSTRUCTION DOCUMENTS

  [A] 107.1 General. Submittal documents consisting of construction documents, statement of special inspections, geotechnical report and other data shall be submitted in two or more sets, or in a digital format where allowed by the building official, with each

  2025 CALIFORNIA BUILDING CODE 1-29

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

  ADMINISTRATION

  permit application. The construction documents shall be prepared by a registered design professional where required by the statutes of the jurisdiction in which the project is to be constructed. Where special conditions exist, the building official is authorized to require additional construction documents to be prepared by a registered design professional.

  Exception: The building official is authorized to waive the submission of construction documents and other data not required to be prepared by a registered design professional if it is found that the nature of the work applied for is such that review of construction documents is not necessary to obtain compliance with this code.

  [A] 107.2 Construction documents. Construction documents shall be in accordance with Sections 107.2.1 through 107.2.8.

• CBC § 105.4 High relevance — show source text

  [A] 105.4 Validity of permit. The issuance or granting of a permit shall not be construed to be a permit for, or an approval of, any violation of any of the provisions of this code or of any other ordinance of the jurisdiction. Permits presuming to give authority to violate or cancel the provisions of this code or other ordinances of the jurisdiction shall not be valid. The issuance of a permit based on construction documents and other data shall not prevent the building official from requiring the correction of errors in the construction documents and other data. The building official is authorized to prevent occupancy or use of a structure where in violation of this code or of any other ordinances of this jurisdiction.

  [A] 105.5 Expiration. Every permit issued shall become invalid unless the work on the site authorized by such permit is commenced within 180 days after its issuance, or if the work authorized on the site by such permit is suspended or abandoned for a period of 180 days after the time the work is commenced. The building official is authorized to grant, in writing, one or more extensions of time, for periods not more than 180 days each. The extension shall be requested in writing and justifiable cause demonstrated.

  105.5.1 Expiration. On or after January 1, 2019, every permit issued shall become invalid unless the work on the site authorized by such permit is commenced within 12 months after its issuance, or if the work authorized on the site by such permit is suspended or abandoned for a period of 12 months after the time the work is commenced. The building official is authorized to grant, in writing, one or more extensions of time, for periods not more than 180 days each. The extension shall be requested in writing and justifiable cause demonstrated . (See Health and Safety Code Section 18938.5 and 18938.6.)

  [A] 105.6 Suspension or revocation. The building official is authorized to suspend or revoke a permit issued under the provisions of this code wherever the permit is issued in error or on the basis of incorrect, inaccurate or incomplete information, or in violation of any ordinance or regulation or any of the provisions of this code.

  [A] 105.7 Placement of permit. The building permit or copy shall be kept on the site of the work until the completion of the project.

  SECTION 106—FLOOR AND ROOF DESIGN LOADS

  [A] 106.1 Live loads posted. In commercial or industrial buildings, for each floor or portion thereof designed for live loads exceeding 50 psf (2.40 kN/m [2] ), such design live loads shall be conspicuously posted by the owner or the owner’s authorized agent in that part of each story in which they apply, using durable signs. It shall be unlawful to remove or deface such notices. [DSA-SS, DSA-SS/CC] These posting requirements also apply to school and state-owned essential services buildings as regulated by DSA.

  106.1.1 Snow load posting. [OSHPD 1, 1R, 2, 4 & 5] Snow loads used in design shall be posted as for live loads.

• CBC § 8.10 Medium relevance — show source text

  1.8.10 Other Building Regulations . . . . . . . . . . . . . . . . . . . . . . 1-13

  1.9 Division of the State Architect . . . . . . . . . . . . . . . . . . . . 1-13

  1.10 Department of Health Care Access and Information/Office of Statewide Hospital Planning and Development . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15

  1.11 Office of the State Fire Marshal . . . . . . . . . . . . . . . . . . . 1-17

  1.12 State Librarian. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22

  1.13 Reserved . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22

  1.14 California State Lands Commission . . . . . . . . . . . . . . . 1-22

  DIVISION II – SCOPE AND ADMINISTRATION . . . . . . . . . . . . 1-23

  Part 1—Scope and Application. . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23

  101 Scope and General Requirements. . . . . . . . . . . . . . . 1-23

  102 Applicability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24

  Part 2—Administration and Enforcement . . . . . . . . . . . . . . . . . 1-24

  103 Code Compliance Agency . . . . . . . . . . . . . . . . . . . . . . 1-24

  104 Duties and Powers of Building Official. . . . . . . . . . . 1-25

  105 Permits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-27

  106 Floor and Roof Design Loads . . . . . . . . . . . . . . . . . . . 1-29

  107 Construction Documents . . . . . . . . . . . . . . . . . . . . . . 1-29

  108 Temporary Structures, Equipment and Systems . . . . . . . . . . . . . . . . . . . . . 1-31

  109 Fees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31

  110 Inspections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31

  111 Certificate of Occupancy. . . . . . . . . . . . . . . . . . . . . . . 1-33

• CBC § 408.3.5 Medium relevance — show source text

  Group I-3 408.3.5, 1011.15, 1011.16 Heliport 412.7.3 Refrigeration machinery room 1006.2.2.2

  Ship′s ladders 408.3.5, 1011.15 Stage 410.5.3.4 Laminated Timber, Structural Glued 602.4, 2303.1, 2303.1.3, 2304.12.2.4, 2306.1, 2308.8.3, 2308.11.8 Landings Doors 1010.1.5

  Ramp 1012.6 Stair 1011.6

  Landscaped Roof 1606.5 Lath, Metal or Wire Table 2507.2 Laundries 304.1, 306.2, Table 509.1 Laundry Chute 713.13, 903.2.11.2 Legal Federal and state authority 102.2 Liability 104.8 Notice of violation 114.2, 116.3 Registered design professional 107.1, 107.3.4 Right of entry 104.4 Unsafe buildings or systems 116 Violation penalties 114.4 Libraries

  Classification, other than school 303.1.3, 303.4 Classification, school 303.1.3, 305.1 Live load Table 1607.1 Light, Required 1204 Artificial 1204.3 Emergency (see Emergency Lighting) Means of egress 1008.2 Natural 1204.2

  Stairways 1204.4 Yards and courts 1205 Light-Frame Construction Cold-formed steel 2206 Conventional (wood) 2308 Lights, Plastic Ceiling Diffusers 2606.7 Limit State 1604.2 Limited Verbal or Physical Assistance 308.2.2, 310.5.2 Linen Chute 713.13, 903.2.11.2 Lintel

  Adobe 2109.2.4.9

  Fire resistance 704.10 Masonry, wood support 2304.13 Liquefied Petroleum Gas Table 414.5.1,

  415.9.2 Listed (definition) 202 Listing Agency (definition) 202 Live Load 1607

  Construction Documents 1603.1.1

  Posting of 106.1 Roof 1607

  Live/Work Units 310.3, 508.5 Accessibility Chapters 11A and 11B Separation 508.2 Load and Resistance Factor Design (LRFD) 1602.1

  Factored load 1604.2

  Limit state 1604.2

  Load combinations 1605 Wood design 2302.1, 2307 Load Combinations 1605 Allowable stress design 1605, 1605.2 Alternative allowable stress load

  combinations 1605.2 Load and resistance factor design 1605 Strength design 1605 Loads 106, 202 Atmospheric ice 1614 Combinations 1605

  Dead 1606

  Factored load 402.8.2.1, 1604.2,

  1709.2

• CBC § 3.1 Medium relevance — show source text

  Exception: Construction documents for buildings constructed in accordance with the conventional light-frame construction provisions of Section 2308 shall indicate the following structural design information:

  1. Floor and roof dead and live loads.

  2. Ground snow load, p g, and allowable stress design ground snow load, p g(asd) .

  3. Basic wind speed, V, mph (m/s), and allowable stress design wind speed, V asd , as determined in accordance with Section 1609 A .3.1 and wind exposure.

  4. Seismic design category and site class.

  5. Flood design data, if located in flood hazard areas established in Section 1612 A .3.

  6. Design load-bearing values of soils.

  7. Rain load data.

  [DSA-SS] Additional requirements are included in Section 4-210 and 4-317 of the California Administrative Code (Part 1, Title 24, C.C.R).

  [OSHPD 1] Additional requirements are included in Section 7-115 and 7-125 of the California Administrative Code.

  1603 A .1.1 Floor live load. The uniformly distributed, concentrated and impact floor live load used in the design shall be indicated for floor areas. Use of live load reduction in accordance with Section 1607 A .13 shall be indicated for each type of live load used in the design.

  1603 A .1.2 Roof live load. The roof live load used in the design shall be indicated for roof areas. 1603 A .1.3 Roof snow load data. The ground snow load, p g, shall be indicated. In areas where the ground snow load, p g , exceeds 15 pounds per square foot (psf) (0.72 kN/m [2] ), the following additional information shall also be provided, regardless of whether snow loads govern the design of the roof:

  1. Flat-roof snow load, p f .
  2. Snow exposure factor, C e .
  3. Risk category.
  4. Thermal factor, C t .
  5. Slope factor(s), C s .
  6. Drift surcharge load(s), p d , where the sum of p d and p f exceeds 30 psf (1.44 kN/m [2] ) .
  7. Width of snow drift(s), w .
  8. Winter wind parameter for snow drift, W 2 .

  1603 A .1.4 Wind and tornado design data. The following information related to wind loads and, where required by Section 1609 A .5, tornado loads shall be shown, regardless of whether wind or tornado loads govern the design of the lateral force-resisting system of the structure:

  1. Basic wind speed, V, mph (m/s), tornado speed, V T, mph (m/s), and allowable stress design wind speed, V asd, mph (m/s), as determined in accordance with Section 1609 A .3.1.
• CBC § 1-24 Medium relevance — show source text

  102 Applicability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24

  Part 2—Administration and Enforcement . . . . . . . . . . . . . . . . . 1-24

  103 Code Compliance Agency . . . . . . . . . . . . . . . . . . . . . . 1-24

  104 Duties and Powers of Building Official. . . . . . . . . . . 1-25

  105 Permits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-27

  106 Floor and Roof Design Loads . . . . . . . . . . . . . . . . . . . 1-29

  107 Construction Documents . . . . . . . . . . . . . . . . . . . . . . 1-29

  108 Temporary Structures, Equipment and Systems . . . . . . . . . . . . . . . . . . . . . 1-31

  109 Fees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31

  110 Inspections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31

  111 Certificate of Occupancy. . . . . . . . . . . . . . . . . . . . . . . 1-33

  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

• California Building Code Medium relevance — show source text

  wind speed****V ULT (mph)|** Ultimate design wind speed**V ULT (mph)|** Ultimate design wind speed**V ULT (mph)|** Ultimate design wind speed**V ULT (mph)| |RAFTER OR
  TRUSS SPACING|ROOF SPAN
  (feet)|110|110|115|115|120|120|130|130|140|140| |RAFTER OR
  TRUSS SPACING|ROOF SPAN
  (feet)|** Roof pitch|** Roof pitch**|** Roof pitch**|** Roof pitch**|** Roof pitch**|** Roof pitch**|** Roof pitch**|** Roof pitch**|** Roof pitch**|** Roof pitch**| |RAFTER OR
  TRUSS SPACING|ROOF SPAN
  (feet)|< 5:12|≥ 5:12|< 5:12|≥ 5:12|< 5:12|≥ 5:12|< 5:12|≥ 5:12|< 5:12|≥ 5:12| |12″ o.c.|12|48|43|59|53|70|64|95|88|122|113| |12″ o.c.|18|59|52|74|66|89|81|122|112|157|146| |12″ o.c.|24|71|62|89|79|108|98|149|137|192|178| |12″ o.c.|28|79|69|99|88|121|109|167|153|216|200| |12″ o.c.|32|86|75|109|97|134|120|185|170|240|222| |12″ o.c.|36|94|82|120|106|146|132|203|186|264|244| |12″ o.c.|42|106|92|135|120|166|149|230|211|300|278| |12″ o.c.|48|118|102|151|134|185|166|258|236|336|311| |16″ o.c.|12|64|57|78|70|93|85|126|117|162|150| |16″ o.c.|18|78|69|98|88|118|108|162|149|209|194| |16″ o.c.|24|94|82|118|105|144|130|198|182|255|237| |16″ o.c.|28|105|92|132|117|161|145|222|203|287|266| |16″ o.c.|32|114|100|145|129|178|160|246|226|319|295| |16″ o.c.|36|125|109|160|141|194|176|270|247|351|325| |16″ o.c.|42|141|122|180|160|221|198|306|281|399|370| |16″ o.c.

• CBC § 2109.2.4.9 Medium relevance — show source text

  Adobe 2109.2.4.9

  Fire resistance 704.10 Masonry, wood support 2304.13 Liquefied Petroleum Gas Table 414.5.1,

  415.9.2 Listed (definition) 202 Listing Agency (definition) 202 Live Load 1607

  Construction Documents 1603.1.1

  Posting of 106.1 Roof 1607

  Live/Work Units 310.3, 508.5 Accessibility Chapters 11A and 11B Separation 508.2 Load and Resistance Factor Design (LRFD) 1602.1

  Factored load 1604.2

  Limit state 1604.2

  Load combinations 1605 Wood design 2302.1, 2307 Load Combinations 1605 Allowable stress design 1605, 1605.2 Alternative allowable stress load

  combinations 1605.2 Load and resistance factor design 1605 Strength design 1605 Loads 106, 202 Atmospheric ice 1614 Combinations 1605

  Dead 1606

  Factored load 402.8.2.1, 1604.2,

  1709.2

  Flood 1603.1.7, 1612 Impact 1607.12 Live 508.5.8, 1603.1.1, 1607 Load effects 1604.4

  Nominal load 1604.2 Partial loading 1607.3.1, 1607.3.2 Rain 1603.1.9, 1611 Seismic 1603.1.5, 1613 Snow 1603.1.3, 1608 Soil lateral 1610

  Tornado 1603.1.4, 1609.5, 1609.6.3.2 Tsunami 1615

  Wind 1603.1.4, 1609 Lobbies Assembly occupancy 1030.4 Elevator 405.4.3, 1009.2.1, 1009.4, 3006, 3007.6, 3008.6 Exit discharge 1028.2 Underground buildings 405.4.3 Lobby 202 Local Enforcing Agency 1.8.3 Locks and Latches 1010.2, 1010.2.8 Delayed egress locks 1010.2.12 Electromagnetically locked 1010.2.10 Fire Exit Hardware 1010.2.10, 1010.2.8 Group I-2 407.4.1.1, 1010.2.13 Group I-3 408.4 High-rise 403.5.3 Sensor release 1010.2.11

  Toilet rooms Chapter 29 Lodging Houses 310.4, 310.4.2 Lowest Floor 1603.1.7, 1612.4 Lumber

  General provisions Chapter 23 Quality standards 2303

• CBC § 1603.1 Medium relevance — show source text

  W i = Wind-on-ice in accordance with Chapter 10 of ASCE 7.

  SECTION 1603—CONSTRUCTION DOCUMENTS

  1603.1 General. Construction documents shall show the material, size, section and relative locations of structural members with floor levels, column centers and offsets dimensioned. The design loads and other information pertinent to the structural design required by Sections 1603.1.1 through 1603.1.9 shall be indicated on the construction documents.

  Exception: Construction documents for buildings constructed in accordance with the conventional light-frame construction provisions of Section 2308 shall indicate the following structural design information:

  1. Floor and roof dead and live loads.

  2. Ground snow load, p g, and allowable stress design ground snow load, p g(asd) .

  3. Basic wind speed, V, mph (m/s), and allowable stress design wind speed, V asd , as determined in accordance with Section 1609.3.1 and wind exposure.

  4. Seismic design category and site class.

  5. Flood design data, if located in flood hazard areas established in Section 1612.3.

  6. Design load-bearing values of soils.

  7. Rain load data.

  [OSHPD 1R, 2 & 5] Additional requirements are included in Sections 7-115 and 7-125 of the California Administrative Code (Part 1, Title 24, C.C.R).

  1603.1.1 Floor live load. The uniformly distributed, concentrated and impact floor live load used in the design shall be indicated for floor areas. Use of live load reduction in accordance with Section 1607.13 shall be indicated for each type of live load used in the design.

  1603.1.2 Roof live load. The roof live load used in the design shall be indicated for roof areas. 1603.1.3 Roof snow load data. The ground snow load, p g, shall be indicated. In areas where the ground snow load, p g , exceeds 15 pounds per square foot (psf) (0.72 kN/m [2] ), the following additional information shall also be provided, regardless of whether snow loads govern the design of the roof:

  1. Flat-roof snow load, p f .
  2. Snow exposure factor, C e .
  3. Risk category.
  4. Thermal factor, C t .
  5. Slope factor(s), C s .
  6. Drift surcharge load(s), p d , where the sum of p d and p f exceeds 30 psf (1.44 kN/m [2] ) .
  7. Width of snow drift(s), w .
  8. Winter wind parameter for snow drift, W 2 .

  1603.1.4 Wind and tornado design data. The following information related to wind loads and, where required by Section 1609.5, tornado loads shall be shown, regardless of whether wind or tornado loads govern the design of the lateral force-resisting system of the structure:

  1. Basic wind speed, V, mph (m/s), tornado speed, V T, mph (m/s), and allowable stress design wind speed, V asd, mph (m/s), as determined in accordance with Section 1609.3.1.

  2. Risk category.
• CBC § 25.4 Medium relevance — show source text

  Building width is in the direction of horizontal framing members supported by the header.
  c. The table provides for roof slopes between 3:12 and 12:12.
  d. The maximum roof overhang is 24 inches (610 mm).|For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per square foot = 0.0479 kPa.
  DR = Design Required.
  a. Design assumptions:
  Maximum deflection criterion: L/240.
  Maximum roof dead load: 10 psf.
  Maximum ceiling load: 5 psf.
  Maximum ceiling live load: 20 psf.
  Maximum second-floor live load: 30 psf.
  Maximum second-floor dead load: 10 psf.
  Maximum second-floor dead load from walls: 10 psf.
  Maximum first floor dead load: 10 psf.
  Wind loads based on Table R301.2.1(1).
  Strength axis of facing material applied horizontally.
  b. Building width is in the direction of horizontal framing members supported by the header.
  c. The table provides for roof slopes between 3:12 and 12:12.
  d. The maximum roof overhang is 24 inches (610 mm).|For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per square foot = 0.0479 kPa.
  DR = Design Required.
  a. Design assumptions:
  Maximum deflection criterion: L/240.
  Maximum roof dead load: 10 psf.
  Maximum ceiling load: 5 psf.
  Maximum ceiling live load: 20 psf.
  Maximum second-floor live load: 30 psf.
  Maximum second-floor dead load: 10 psf.
  Maximum second-floor dead load from walls: 10 psf.
  Maximum first floor dead load: 10 psf.
  Wind loads based on Table R301.2.1(1).
  Strength axis of facing material applied horizontally.
  b. Building width is in the direction of horizontal framing members supported by the header.
  c. The table provides for roof slopes between 3:12 and 12:12.
  d. The maximum roof overhang is 24 inches (610 mm).|For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per square foot = 0.0479 kPa.
  DR = Design Required.
  a. Design assumptions:
  Maximum deflection criterion: L/240.
  Maximum roof dead load: 10 psf.
  Maximum ceiling load: 5 psf.
  Maximum ceiling live load: 20 psf.
  Maximum second-floor live load: 30 psf.
  Maximum second-floor dead load: 10 psf.
  Maximum second-floor dead load from walls: 10 psf.
  Maximum first floor dead load: 10 psf.
  Wind loads based on Table R301.2.1(1).
  Strength axis of facing material applied horizontally.
  b. Building width is in the direction of horizontal framing members supported by the header.
  c. The table provides for roof slopes between 3:12 and 12:12.
  d. The maximum roof overhang is 24 inches (610 mm).|

  6-182 2025 CALIFORNIA RESIDENTIAL CODE

• CBC § 1601A.1.2 Medium relevance — show source text

  centers.

  1601A.1.2 Amendments in this chapter. DSA-SS and OSHPD adopt this chapter and all amendments.

  Exception: Amendments adopted by only one agency appear in this chapter preceded with the appropriate acronym of the adopt- ing agency, as follows: 1. Division of the State Architect-Structural Safety:

  [DSA-SS] – For applications listed in Section 1.9.2.1. 2. Office of Statewide Hospital Planning and Development:

  [OSHPD 1] – For applications listed in Section 1.10.1.

  [OSHPD 4] – For applications listed in Section 1.10.4.

  1601A.2 Enforcement agency approval. In addition to the requirements of the California Administrative Code and the California Build- ing Code, any aspect of project design, construction, quality assurance or quality control programs for which this code requires approval by the Registered Design Professional (RDP), are also subject to approval by the enforcement agency.

  SECTION 1602 A —NOTATIONS

  1602 A .1 Notations. The following notations are used in this chapter:

  D = Dead load.

  D i = Weight of ice in accordance with Chapter 10 of ASCE 7.

  E = Combined effect of horizontal and vertical earthquake induced forces as defined in Section 12.4 of ASCE 7.

  F = Load due to fluids with well-defined pressures and maximum heights.

  F a = Flood load in accordance with Chapter 5 of ASCE 7.

  H = Load due to lateral earth pressures, ground water pressure or pressure of bulk materials.

  L = Live load.

  L r = Roof live load.

  p g(asd) = Allowable stress design ground snow load.

  p g = Ground snow load determined from Figures 1608.2(1) through 1608.2(4) and Table 1608.2.

  R = Rain load.

  S = Snow load.

  T = Cumulative effects of self-straining load forces and effects.

  V asd = Allowable stress design wind speed, mph (m/s) where applicable.

  V = Basic wind speed, V, mph (m/s) determined from Figures 1609 A .3(1) through 1609 A .3(4) or ASCE 7.

  V T = Tornado speed, mph (m/s) determined from Chapter 32 of ASCE 7.

  W = Load due to wind pressure.

  W i = Wind-on-ice in accordance with Chapter 10 of ASCE 7.

  2025 CALIFORNIA BUILDING CODE 16A-3

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

  STRUCTURAL DESIGN

  SECTION 1603 A —CONSTRUCTION DOCUMENTS

  1603 A .1 General. Construction documents shall show the material, size, section and relative locations of structural members with floor levels, column centers and offsets dimensioned. The design loads and other information pertinent to the structural design required by Sections 1603 A .1.1 through 1603 A .1.10 shall be indicated on the construction documents.

• CBC § 2.1 Medium relevance — show source text

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  STEEL

  1. For members designed based on tension, the slenderness ratio (L/r) shall not exceed 300, except for the design of hangers and bracing in accordance with NFPA 13 and for rod hangers in tension. 2. For members designed based on compression, the slenderness ratio (KL/r) shall not exceed 200, except for the design of hangers and bracing in accordance with NFPA 13.

  2202 A .2 Seismic design. Where required, the seismic design, fabrication and erection of buildings, structures and portions thereof shall be in accordance with Section 2202 A .2.1 or 2202 A .2.2, as applicable.

  2202 A .2.1 Structural steel seismic force-resisting systems and composite structural steel and concrete seismic force- resisting systems. The design, detailing, fabrication and erection of structural steel seismic force-resisting systems and composite structural steel and concrete seismic force-resisting systems shall be in accordance with the provisions of Section 2202 A .2.1.1 or 2202 A .2.1.2, as applicable. Seismic force-resisting systems of structural steel acting compositely with reinforced concrete shall be considered as an alternative system, except as permitted by:

  [DSA-SS] Section 2202A.6.1.

  [OSHPD 1 & 4] Section 2202A.4.1.

  2202 A .2.1.1 Seismic Design Category B or C. Not permitted by DSA-SS and OSHPD.

  2202 A .2.1.2 Seismic Design Category D, E or F. Structures assigned to Seismic Design Category D, E or F shall be designed and detailed in accordance with AISC 341. Beam-to-column moment connections in structural steel special moment frames and intermediate moment frames shall be prequalified in accordance with AISC 341, Section K1, qualified by testing in accordance with AISC 341, Section K2, or shall be prequalified in accordance with AISC 358.

  2202 A .2.2 Structural steel elements. The design, detailing, fabrication and erection of structural steel elements in seismic forceresisting systems, including struts, collectors, chords and foundation elements, shall be in accordance with AISC 341.

  2202A.3 Modifications to AISC 341. [OSHPD 1 and 4]

  2202A.3.1 Section A4. Modify Section A4.1 Item (c) by adding the following:

  (c) Locations and dimensions of protected zones. The fabricator shall permanently mark protected zones of structural elements in the seismic force-resisting system in the building that are designated on the construction documents. If these markings are obscured during construction, such as after the application of fire protection, the owner’s designated representative shall re-mark the protected zones as they are designated on the construction documents. [OSHPD 1 & 4] Primers or paints used to mark protected zones on steel surfaces, which are to receive sprayed fire-resistance material, shall comply with California Building Code Section 704.13.3.2.