CHAPTER 3 — PROVISIONS FOR ALL COMPLIANCE METHODS
See Chapter 1 for state agency authority and building applications.)
|Adopt Entire Chapter||X|
|Adopt Entire Chapter as
amended (amendedsections listed below)
|Adopt only those sections
that are listed below
|Chapter / Section|
|301.1 — 301.3.1||X||X||X||X||X|
|301.1 Exception 1||X|
|301.1 Exception 2||X|
|301.1 Exception 3||X|
|301.1 Exception 4||X||X|
|301.1 Exception 5||X||X||X||X|
|304 — 305||X||X||X||X|
|307 — 308||X|
|310 — 311||X||X||X|
|313 — 316||X|
|317 — 322||X||X||X|
- Existing state-owned structures. [BSC] The repair, alteration, change of occupancy, addition or relocation of all existing buildings shall comply with the provisions of Sections 317 through 322 as the minimum standards for earthquake evaluation and design for retrofit of existing state-owned structures, including buildings owned by the University of California, the California State University or the Judicial Council.
- Public school buildings [DSA-SS] The provisions of Sections 317 through 323 establish minimum standards for earthquake evaluation and design for the rehabilitation of existing buildings for use as public school buildings under the jurisdiction of the Division of the State Architect—Structural Safety (DSA-SS, refer to Section 188.8.131.52) where required by Sections 4-307 and 4-309(c) of the California Administrative Code.
- Community college buildings. [DSA-SS/CC] The provisions of Sections 317 through 323 establish minimum standards for earthquake evaluation and design for the rehabilitation of existing buildings for use as community college buildings under the jurisdiction of the Division of the State Architect—Structural Safety/Community Colleges (DSA-SS/CC, refer to Section 184.108.40.206) where required by Sections 4-307 and 4-309(c) of the California Administrative Code.
- [HCD 1] In addition to the requirements in this chapter, maintenance, alteration, repair, addition or change of occupancy to existing buildings and accessory structures under the authority of the Department of Housing and Community Development, as provided in Section 220.127.116.11.1, shall comply with California Code of Regulations, Title 25, Division 1, Chapter 1, Subchapter 1.Exceptions:
- [HCD 2] For moved buildings and maintenance, alteration, repair, addition or change of occupancy to existing buildings and accessory structures in mobilehome parks or special occupancy parks as provided in Section 18.104.22.168.3, see California Code of Regulations, Title 25, Division 1, Chapters 2 and 2.2.
- [HCD 1] Limited-density owner-built rural dwellings, as defined in Chapter 2 of the California Residential Code.
- Hospital buildings removed from acute care service, skilled nursing facilities, intermediate-care facilities, correctional treatment centers and acute-psychiatric hospitals [OSHPD 1R, 2, 4 and 5]. The provisions of adopted sections in Chapters 3 through 5 shall control the alteration, repair and change of occupancy or function of existing structures for applications listed in Section 1.10.1, 1.10.2, 1.10.4 and 1.10.5 regulated by the Office of Statewide Health Planning and Development (OSHPD). Functional service spaces shall comply with the requirements in the California Building Code, Sections 1224, 1225, 1226, 1227 and 1228.
- Alterations for accessibility required by the California Building Code, Chapter 11A.
- Alterations that constitute substantial improvement in flood hazard areas, which shall comply with Sections 503.2, 701.3 or 1301.3.3.
- Structural provisions of Section 304, Chapter 5 or to the structural provisions of Sections 706, 805 and 906.
- Where an addition is being added on an existing Group E site, and where the addition is not of sufficient size to accommodate the required occupant capacity of the storm shelter for all of the buildings on-site, the storm shelter shall at a minimum accommodate the required capacity for the addition.
- Where approved by the code official, the required occupant capacity of the shelter shall be permitted to be reduced by the occupant capacity of any existing storm shelters on the site.
- One-hundred percent of the values in the California Building Code. Where the existing seismic forceresisting system is a type that can be designated as "Ordinary," values of R, Ω0 and Cd used for analysis in accordance with Chapter 16 of the California Building Code shall be those specified for structural systems classified as "Ordinary" in accordance with Table 12.2-1 of ASCE 7, unless it can be demonstrated that the structural system will provide performance equivalent to that of a "Detailed," "Intermediate" or "Special" system.
- ASCE 41, using a Tier 3 procedure and the two-level performance objective in Table 304.3.1 for the applicable risk category.
CATEGORY(Based on IBC
PERFORMANCE LEVELFOR USE WITH BSE-1N
PERFORMANCE LEVELFOR USE WITH BSE-2N
|I||Life Safety (S-3)||Collapse Prevention (S-5)|
|II||Life Safety (S-3)||Collapse Prevention (S-5)|
|III||Damage Control (S-2)||Limited Safety (S-4)|
|IV||Immediate Occupancy (S-1)||Life Safety (S-3)|
- The California Building Code using 75 percent of the prescribed forces. Values of R, Ω0 and Cd used for analysis shall be as specified in Section 304.3.1 of this code.
- Structures or portions of structures that comply with the requirements of the applicable chapter in Appendix A as specified in Items 2.1 through 2.4 and subject to the limitations of the respective Appendix A chapters shall be deemed to comply with this section.
- The seismic evaluation and design of unreinforced masonry bearing wall buildings in Risk Category I or II are permitted to be based on the procedures specified in Appendix Chapter A1.
- Seismic evaluation and design of the wall anchorage system in reinforced concrete and reinforced masonry wall buildings with flexible diaphragms in Risk Category I or II are permitted to be based on the procedures specified in Chapter A2.
- Seismic evaluation and design of cripple walls and sill plate anchorage in residential buildings of light-frame wood construction in Risk Category I or II are permitted to be based on the procedures specified in Chapter A3.
- Seismic evaluation and design of soft, weak or open-front wall conditions in multiple-unit residential buildings of wood construction in Risk Category I or II are permitted to be based on the procedures specified in Chapter A4.
- ASCE 41, using the performance objective in Table 304.3.2 for the applicable risk category.
(Based on IBCTable 1604.5)
PERFORMANCE LEVELFOR USE WITH BSE-1E
PERFORMANCE LEVELFOR USE WITH BSE-2E
|I||Life Safety (S-3). See Note a||Collapse Prevention (S-5)|
|II||Life Safety (S-3). See Note a||Collapse Prevention (S-5)|
|III||Damage Control (S-2). See Note a||Limited Safety (S-4). See Note b|
|IV||Immediate Occupancy (S-1)||Life Safety (S-3). See Note c|
- For Risk Categories I, II and III, the Tier 1 and Tier 2 procedures need not be considered for the BSE-1E earthquake hazard level.
- For Risk Category III, the Tier 1 screening checklists shall be based on the Collapse Prevention, except that checklist statements using the Quick Check provisions shall be based on MS-factors that are the average of the values for Collapse Prevention and Life Safety.
- For Risk Category IV, the Tier 1 screening checklists shall be based on Collapse Prevention, except that checklist statements using the Quick Check provisions shall be based on MS-factors for Life Safety.
- The costs of providing the accessible route are not required to exceed 20 percent of the costs of the alterations affecting the area of primary function.
- This provision does not apply to alterations limited solely to windows, hardware, operating controls, electrical outlets and signs.
- This provision does not apply to alterations limited solely to mechanical systems, electrical systems, installation or alteration of fire protection systems and abatement of hazardous materials.
- This provision does not apply to alterations undertaken for the primary purpose of increasing the accessibility of a facility.
- This provision does not apply to altered areas limited to Type B dwelling and sleeping units.
- Work involving the exterior surfaces of buildings, such as the replacement of roofing or siding, the addition or replacement of windows or doors, or the addition of porches or decks.
- Installation, alteration or repairs of plumbing or mechanical systems, other than fuel-burning appliances.
- Work classified as Level 1 Alterations in accordance with Chapter 7.
- a. Services considered "Outpatient Clinical Services" as defined in H&SC §129730(a):
- b. Outpatient portions of the following services (with no more than 25 percent in-patient use), including but not limited to:
- i. Surgical
- ii. Chronic dialysis
- iii. Psychiatry
- iv. Rehabilitation, occupational therapy or physical therapy
- v. Maternity
- vi. Dentistry
- viii. Chemical dependency
- c. Services that duplicate Basic Services, as defined in H&SC §1250, or services that are provided as part of a Basic Service, but are not required for facility licensure (with no more than 25 percent in-patient use).
- Existing approved nonacute care services shall be permitted to remain. The enforcement agency may require evidence that the existing occupancies and services were in compliance at the time they were located in the SPC building. All hospital support services listed in Section 312.3.1, Item a that are remaining in the SPC building removed from general acute care service shall be in excess of the minimum requirements for licensure and operation of the general acute care hospital. Prior approval by the California Department of Public Health shall be obtained by the hospital to maintain these services in the SPC building removed from acute care service.
- New nonacute care services listed in Section 312.3.1, Item a shall be permitted, provided they are in excess of the minimum services required for licensure and operation of the general acute care hospital.
- New nonacute care services listed in Section 312.3.1, Item b shall be permitted. These services require compliance with the current functional requirements for that service as defined in Part 2, California Building Code, Section 1224.39, subject to the provisions of Section 506.1.
- New nonacute care services listed in Section 312.3.1, Item c shall be permitted provided they are in excess of the minimum services required for licensure and operation of the general acute care hospital. If patients are served by this service, it must meet the current functional requirements for that service as defined in Part 2, California Building Code, Section 1224.39, subject to the provisions of Section 506.1.
312.3.3 SPC Non-GACH Buildings Containing a Change of Licensed Nursing Services Under Existing License
- Serves an occupant load of nine people or less or a single dwelling unit or hotel room.
- The building does not exceed three stories in height.
- The access is adjacent to an opening as specified for emergency egress or rescue or from a balcony.
- The device does not pass in front of any building opening below the unit being served.
- The availability of activating the ladder device is accessible only to the opening or balcony served.
- The device as installed will not cause a person using it to be within 12 feet (3658 mm) of exposed energized high-voltage conductors.
- Rung strength.
- Rung-to-side-rail shear strength.
- Release mechanism.
- Low temperature.
- Areas do not exceed the number of apartments or guest rooms stipulated.
- The fire-resistive wall conforms to the requirements of Section 706.6 of the California Building Code.
- The wall complies with all other applicable provisions of the California Building Code.
- The wall extends to all outer edges of horizontal projecting elements, such as balconies, roof overhangs, canopies, marquees or architectural projections.
- No openings are permitted for air ducts or similar penetrations, except that openings for pipes, conduits and electrical outlets of copper, sheet steel or ferrous material shall be permitted through such wall and need not be protected, provided they do not unduly impair the required fire resistance of the assembly.
- Tolerances around such penetrations shall be filled with approved noncombustible materials.
- Hospitals, as defined in Section 1250 of the Health and Safety Code.
- The following structures, while classified as high-rise buildings, shall not be subject to the provisions of Sections 314.1 through 314.27, but shall conform to all applicable provisions of these regulations.
- Building used exclusively as open parking garages.
- Buildings where all floors above the 75 foot (22 860 mm) level are used exclusively as open parking garages.
- Floors of buildings used exclusively as open parking garages and located above all other floors used for human occupancy.
- Buildings such as power plants, look-out towers, steeples, grain houses and similar structures, when so determined by the enforcing agency.
- Buildings used exclusively for jails and prisons. For the purposes of this section, "building access" shall mean an exterior door opening conforming to all of the following:
- Suitable and available for fire department use.
- Located not more than 2 feet (610 mm) above the adjacent ground level.
- Leading to a space, room or area having foot traffic communication capabilities with the remainder of the building.
- Designed to permit penetration through the use of fire department forcible-entry tools and equipment unless other approved arrangements have been made with the fire authority having jurisdiction.
- Through a room between the corridor and the fire escape if the door to the room is operable from the corridor side without the use of any key, special knowledge or effort.
- By a door operable to a fire escape from the interior without the use of any key, special knowledge or effort.
- By a window operable from the interior. Such window shall have a minimum dimension of 29 inches (737 mm) when open.
- The sill shall not be more than 30 inches (762 mm) above the floor and landing.
- In areas of public assemblage, the type and location of audible appliances shall be as determined by the enforcing agency.
- When acceptable to the enforcing agency, the occupant voice notification system required by Section 314.20 may be used in lieu of the fire alarm system required by Section 314.14.
|CONDITION||STORAGE||USE CLOSED SYSTEMS||USE OPEN SYSTEMS|
|1.1 Combustible liquid||II||—||1202||—||—||120||—||30||—|
|1.2 Combustible dust lbs./1000 cu. ft.||1||—||—||1||—||—||1||—||—|
|1.3 Combustible fiber |
|1.4 Cryogenic, flammable or oxidizing||45||—||45||—||10||—|
|3.1 Flammable solid||1252||—||—||25||—||—||25||—||—|
|3.2 Flammable gas |
|3.3 Flammable liquid Combination |
I-A, I-B, I-C
|4.1 Organic peroxide, unclassified |
|4.2 Organic peroxide||I||52||(5)2||—||(1)||(1)||—||1||1||—|
|4.4 Oxidizer.Gas |
|6.1 Unstable (reactive)||4||12||(1)2||102||1/4||(1/4)||22||1/4||(1/4)||0|
|7.1 Water (reactive)||3||52||(5)2||—||5||(5)||—||1||(1)||—|
- A laboratory suite is a space up to 10,000 square feet (929 m2) bounded by not less than a one-hour fire-resistive occupancy separation within which the exempt amounts of hazardous materials may be stored, dispensed, handled or used. Up through the third floor and down through the first basement floor, the quantity in this table shall apply. Fourth, fifth and sixth floors and the second and third basement floor level quantity shall be reduced to 75 percent of this table. The seventh through 10th floor and below the third basement floor level quantity shall be reduced to 50 percent of this table.
- Quantities may be increased 100 percent when stored in approved exhausted gas cabinets, exhausted enclosures or fume hoods.
|MATERIAL||STORAGE||USE CLOSED SYSTEMS||USE OPEN SYSTEMS|
|Solid lb||Liquid |
|Solid lb||Gallons |
|Solid lb||Liquid |
|2a. Highly toxics2||40||10||65||5||1||65||2||1/4|
|5. Other health hazards||5,000||500||650||5,000||500||650||1,000||100|
- A laboratory suite is a space up to 10,000 square feet (929 m2) bounded by not less than a 1-hour fire-resistive occupancy separation within which the exempt amounts of hazardous materials may be stored, dispensed, handled or used. Up through the third floor and down through the first basement floor, the quantity in this table shall apply. Fourth, fifth and sixth floors and the second and third basement floor level quantity shall be reduced to 75 percent of this table. The seventh through 10th floor and below the third basement floor level quantity shall be reduced to 50 percent of this table.
- Permitted only when stored or used in approved exhausted gas cabinets, exhausted enclosures or fume hoods. Quantities of high toxics in use in open systems need not be reduced above the third floor or below the first basement floor level. Individual container size shall be limited to 2 pounds (0.91 kg) for solids and 1/4 gallon (0.95 L) for liquids.
- Total construction cost, not including cost of furnishings, fixtures and equipment, or normal maintenance, for the building exceeds 25 percent of the construction cost for the replacement of the existing building. The changes are cumulative for past modifications to the building that occurred after adoption of the 1995 California Building Code and did not require seismic retrofit.
- There are changes in risk category.
- 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.
- Structural elements need repair where the damage has reduced the lateral-load-resisting capacity of the structural system by more than 10 percent.
- Changes in live or dead load increase story shear by more than 10 percent.
|BUILDING REGULATORY AUTHORITY||RISK CATEGORY||PERFORMANCE CRITERIA1|
|Level 1||Level 2|
|State-Owned [BSC]||I, II, III||BSE-R, S-3, N-C||BSE-C, S-5, N-D|
|State-Owned [BSC]||IV||BSE-R, S-2, N-B||BSE-C, S-4, N-D|
|Division of the State Architect - [DSA-SS]||I||BSE-1N, S-3, N-B||BSE-2N, S-5, N-D|
|Division of the State Architect - [DSA-SS]||II, III||BSE-1N, S-2, N-B||BSE-2N, S-4, N-D|
|Division of the State Architect - [DSA-SS]||IV||BSE-1N, S-2, N-A||BSE-2N, S-4, N-D|
|Division of the State Architect - [DSA-SS/CC]||I, II||BSE-1E, S-3, N-C||BSE-2N, S-5, N-D|
|Division of the State Architect - [DSA-SS/CC]||III||BSE-1E, S-3, N-B||BSE-2N, S-5, N-D|
|Division of the State Architect - [DSA-SS/CC]||IV||BSE-1E, S-2, N-B||BSE-2N, S-4, N-D|
- ASCE 41 provides acceptance criteria (e.g., m, rotation) for Immediate Occupancy (S1), Life Safety (S3) and Collapse Prevention (S5), and specifies in Sections 22.214.171.124.1 and 126.96.36.199.1 the method to interpolate values for S-2 and S-4, respectively. For nonstructural components, N-A corresponds to the Operational level, N-B to the Position Retention, N-C to the Life Safety level, N-D to the Hazards Reduced, and N-E to the Not Considered. When evaluating for the Hazards Reduced Nonstructural Performance Level, the requirements need not be greater than what would be required by ASCE 7 nonstructural provisions for new construction.
- Buildings evaluated and retrofitted to meet the structural and nonstructural requirements for a new building as given in the California Building Code as adopted by DSA or BSC, as applicable, are deemed to meet the seismic performance requirements of this section.
- Buildings complying with the requirements of the exception in Section 319.1 are deemed to meet the seismic performance requirements of this section.
- Method A of Section 320;
- Method B of Section 321, with independent review of a peer reviewer as required in Section 322; or
- For state-owned buildings only, the use of one of the specific procedures listed in Section 319.1.1.
- [BSC] For buildings constructed to the requirements of California Building Code, 2016 or later edition, as adopted by the governing jurisdiction, that code is permitted to be used in place of those specified in Section 319.1.
- [DSA-SS & DSA-SS/CC] For the conversion of nonconforming buildings to conforming school buildings in accordance with Section 4-307 of the California Administrative Code, nonconforming buildings constructed to the requirements of California Building Code, 2016 or later edition, that code as it was adopted by the governing jurisdiction is permitted to be used in place of those specified in Section 319.1 provided the building complies with Seismic Design Category D or higher.
- [BSC] For state-owned buildings, the requirements shall be met following the data collection requirements of ASCE 41, Section 6.2.
- [DSA-SS, DSA-SS/CC] For public schools and community college buildings constructed in conformance with the Field Act, the "Usual" level as defined in ASCE 41, Section 6.2.2.
- [DSA-SS, DSA-SS/CC] For public schools and community college buildings not constructed in conformance with the Field Act, the "Comprehensive" level as defined in ASCE 41, Section 6.2.3.
- The number of samples for data collection may be adjusted with approval of the enforcement agency when it has been determined that adequate information has been obtained or additional information is required.
- Welded steel moment frame connections of buildings that may have experienced potentially damaging ground motions shall be inspected in accordance with Chapters 3 and 4, FEMA 352, Recommended Post Earthquake Evaluation and Repair Criteria for Welded Moment-Frame Construction for Seismic Applications (July 2000).
- The retrofit design removes the configurational attributes that caused the building to be classified as irregular.
- The irregularity is demonstrated not to affect the seismic performance of the building.
- The capacity of existing structural components required to resist forces is not reduced, unless it can be demonstrated that reduced capacity meets the requirements of Section 319.8.
- The lateral loading to or strength requirement of existing structural components is not increased beyond their capacity.
- New structural components are detailed and connected to the existing structural components as required by the California Building Code.
- New or relocated nonstructural components are detailed and connected to existing or new structural components as required by the California Building Code.
- A dangerous condition is not created.
- Scope of engineering design peer review with limitations defined.
- The status of the project documents at each review stage.
- Ability of selected materials and framing systems to meet performance criteria with given loads and configuration.
- Degree of structural system redundancy and the deformation compatibility among structural and nonstructural components.
- Basic constructability of the retrofit or repair system.
- Other recommendations that would be appropriate to the specific project.
- Presentation of the conclusions of the reviewer identifying any areas that need further review, investigation and/or clarification.
- Identify the building(s) structural and nonstructural systems, potential deficiencies in the elements or systems and the proposed method for retrofit.
- Identify geological and site-related hazards.
- Propose the methodology for evaluation and retrofit design.
- Propose the complete program for data collection (Section 319.2).
- Include existing or "as-built" building plans, reports and associated documents of the existing construction.
- Be seismically separated from the unrehabilitated portion in accordance with Chapter 16 of the California Building Code, or the entire structure shall be rehabilitated in accordance with this section. For structures in which the unrehabilitated portion is above or below the school or community college portion, the entire structure shall be rehabilitated in accordance with this division.
- Be retrofitted as necessary to protect the occupants from falling hazards of the unrehabilitated portion of the building, and;
- Be retrofitted as necessary to protect required exitways being blocked by collapse or falling hazards of the unrehabilitated portion.