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Chapter 4 — ADMINISTRATIVE REGULATIONS FOR THE DIVISION OF THE STATE ARCHITECT—STRUCTURAL SAFETY (DSA-SS)

Article 1 — ESSENTIAL SERVICES BUILDINGS

2025 California Administrative Code (Title 24, Part 1) · 2025 edition · updated 2026-07-29 · California

4-201 Purpose.

Essential services buildings constructed pursuant to these rules and regulations shall be designed and constructed to resist gravity forces, to m

4-201. Purpose. Essential services buildings constructed pursuant to these rules and regulations shall be designed and constructed to resist gravity forces, to minimize fire hazards and to resist, insofar as practical, the forces generated by winds and major earthquakes of the intensity and severity of the strongest anticipated at the building site without catastrophic collapse, but may experience some repairable architectural or structural damage. An essential services building as designed and constructed shall be capable of providing essential services to the public after a disaster. In addition, the equipment and other accessories that are necessary for the continued functioning of the essential services operation shall be anchored and braced to resist earthquake forces.

Authority: Health and Safety Code Section 16022.

Reference: Health and Safety Code Section 16001.

4-202 Scope.

These regulations apply to the administrative procedures concerning the construction, reconstruction, alteration of or addition to any essential se

4-202. Scope. These regulations apply to the administrative procedures concerning the construction, reconstruction, alteration of or addition to any essential services building under the jurisdiction of a city, city and county, county (including special fire districts) or the State of California.

When the enforcement agency is the Division of the State Architect (DSA) all parts of the California Building Standards Code , as contained in Title 24 of the California Code of Regulations and adopted by that agency designate the building regulations that shall apply to an essential services building. The term “essential services building” shall include all buildings, structures, appurtenances and related systems or facilities as defined in Section 4-207.

These rules and regulations establish reasonable standards and minimum requirements for the design and construction of an essential services building. An essential services building shall also be designed and constructed to conform to the regulations adopted by the California State Fire Marshal in Title 24, CCR, for the particular occupancy concerned.

When the enforcement agency is a local agency, the locally adopted editions of the model codes and the administrative regulations contained in Part 1 (Sections 4-201 through 4-222 and 4-243 through 4-249) Title 24, California Code of Regulations (CCR) designate the building regulations that shall apply to an essential services building. The term “essential services building” shall include all buildings, structures, appurtenances and related systems or facilities as defined in Section 4-207.

If the building standards and regulations adopted by the city, city and county or county agency responsible for building safety are more restrictive than those adopted in the applicable sections of Title 24, CCR, then the local building standards and regulations shall govern within its jurisdiction.

Authority: Health and Safety Code Section 16022.

Reference: Health and Safety Code Section 16001.

4-203 Interpretation.

No regulation shall be construed to deprive the enforcing agency of its right to exercise the powers conferred upon it by law or limit the

4-203. Interpretation. No regulation shall be construed to deprive the enforcing agency of its right to exercise the powers conferred upon it by law or limit the enforcing agency in such enforcement as is necessary to secure the safety of construction as required in the Essential Services Seismic Safety Act (see “Act,” Section 4-207.)

Authority: Health and Safety Code Section 16022.

Reference: Health and Safety Code Section 16001.

4-204 Delegation of authority.

Any powers, duties and responsibilities pursuant to carrying out the provisions of the Essential Services Buildings Seismic Safet

4-204. Delegation of authority. Any powers, duties and responsibilities pursuant to carrying out the provisions of the Essential Services Buildings Seismic Safety Act for the State Architect may be delegated by the State Architect to the Chief Structural Engineer, Division of the State Architect, subject to the direction of the State Architect.

Those powers, duties and responsibilities so delegated may include the observation of the implementation and administration of the Act, the adoption in consultation with local jurisdictions of the regulations necessary for carrying out the provisions of the Act, providing advice and assistance to local jurisdictions in matters concerning the Act or these regulations and acting as an appeals agency relative to the administration of the Act.

Authority: Health and Safety Code Section 16022.

Reference: Health and Safety Code Section 16022.

4-205 Application of building standards.

Building standards are set forth in Parts 2, 3, 4, 5, 6, 7, 9, 10, 11 and 12 of Title 24, CCR, and have been adopted as

4-205. Application of building standards. Building standards are set forth in Parts 2, 3, 4, 5, 6, 7, 9, 10, 11 and 12 of Title 24, CCR, and have been adopted as a basis for the approval of plans and specifications. These regulations shall not be construed to prevent the use of higher design standards nor to restrict the use of new or innovative design or construction techniques.

Where the designer desires to use innovative design or construction techniques not addressed in these regulations, it shall be necessary to submit for review and approval information including computations, test data and recommendations covering the design in question. The Division of the State Architect or local enforcement agency must be satisfied that the degree of safety achieved is equivalent to that achieved by the standards contained in Title 24, CCR. The enforcement agency review and approval of the innovative design or construction techniques shall precede the submission of plans and specifications utilizing these techniques. Authority: Health and Safety Code Section 16022.

Reference: Health and Safety Code Section 16001.

4-206 Approval of new essential services buildings.

Plans and specifications shall be submitted to the appropriate enforcement agency for every new owned or lea

4-206. Approval of new essential services buildings. Plans and specifications shall be submitted to the appropriate enforcement agency for every new owned or leased essential services building before the plans are adopted by the governing board, authority, owner, corporation or other agency proposing to construct any essential services building.

Before any agency may convert an existing building into an essential services building, that agency shall submit plans and specifications for the alteration of the building to the appropriate enforcement agency for approval. The plans shall provide for the alterations necessary for compliance with the requirements of these rules and regulations.

Authority: Health and Safety Code Section 16022.

Reference: Health and Safety Code Section 16011.

4-207 Definitions.

The words defined in this section shall have the meaning stated therein throughout the rules and regulations contained in Part 1 (Administrat

4-207. Definitions. The words defined in this section shall have the meaning stated therein throughout the rules and regulations contained in Part 1 (Administrative), Title 24, CCR.

ACT shall mean the Essential Services Buildings Seismic Safety Act of 1986, Sections 16000-16023, inclusive, of the Health and Safety Code.

ADDITION shall mean an increase in floor area or volume of enclosed space that is physically attached to an existing building by connections that are required for transmitting vertical or horizontal loads between the addition and the existing structure. The area exemption in Section 16010 of the Act does not apply to additions to essential services buildings when the total area of the existing building and the addition exceeds 2,000 square feet. An “addition” that is not required to be physically attached either for its own support or for support of the existing building shall be separated as required by Part 2, Title 24, CCR, and shall be deemed to be the construction of a new essential services building.

ALTERATION shall mean changes within an existing building as defined in Part 2, Title 24, CCR. Alterations to existing essential services buildings shall conform to the requirements of Title 24, CCR. Major alterations will be permitted, provided the entire essential services building as modified, including the structural alterations or additions, conforms to the requirements of Title 24, CCR, if the area of the existing building, including additions, exceeds 2,000 square feet.

APPROVED PLANS AND SPECIFICATIONS shall mean plans, specifications, addenda and construction change documents that have been duly approved by the appropriate enforcement agency pursuant to Sections 16013 and 16016 of the Health and Safety Code and that are identified by a stamp bearing the name of the enforcement agency, the identification number, the date and the signature of the qualified reviewer as required in Section 16011 of the Act.

COMPLYING BUILDING shall mean a building that has been constructed or reconstructed in accordance with these rules and regulations.

CONSTRUCTION CHANGE DOCUMENT shall mean a construction document submitted by the responsible project architect or registered engineer and approved by DSA depicting a change to the approved plans and/or specifications after the construction contract has been let.

DIVISION OF THE STATE ARCHITECT, or DIVISION or the initials DSA shall mean the Division of the State Architect in the Department of General Services, State of California.

ENFORCEMENT AGENCY shall mean the Division of the State Architect for state-owned or state-leased buildings and shall mean the enforcement agency of any city, county or city and county having jurisdiction over locally owned or locally leased essential services facilities.

ESSENTIAL SERVICES BUILDING means any building, or any building a portion of which is used or designed to be used as a fire station, police station, emergency operations center, California Highway Patrol office, sheriff’s office or emergency communication dispatch center.

EQUIPMENT shall mean all new or replacement equipment installed in any new or existing owned or leased building that is required for the functioning of the essential services operation. The installation of such equipment shall meet the support, bracing and anchorage requirements of Title 24, CCR. The area exemption in Section 16010 of the Act does not apply to the anchorage or bracing of equipment necessary to the operation of the essential services function.

FIRE STATION shall mean any building that contains the operational facilities, fire suppression, alarm and communications equipment necessary to respond to fire emergencies.

MAINTENANCE shall mean and include ordinary upkeep or repair work such as replacement in kind, repainting, replastering and reroofing.

NEW ESSENTIAL SERVICES BUILDING shall mean any newly erected essential services building or any existing building converted to essential services use subsequent to the effective date of the Act regardless of whether the building is owned or leased by the public agency. Existing buildings housing essential services facilities owned or leased by the state, a city, a city and county or a county prior to the effective date of the Act are exempt from these regulations. When a portion of a building is to be utilized for an essential services operation, the area so utilized and the utilities systems and components servicing the area shall be constructed according to these rules and regulations and shall be separated or protected from damage due to failures of other portions of the structure to the extent determined by the enforcement agency to insure continued functioning after an earthquake or other disaster. Ancillary buildings and facilities related to the essential services building function may be exempt from these regulations if the enforcement agency determines that such buildings and facilities are not necessary to the functioning of the essential services operation after an earthquake or other disaster.

NONSTRUCTURAL ALTERATIONS shall mean only such alterations that do not affect the safety of the essential services building and do not change, in any manner, its structural elements.

OWNER for the purposes of these regulations shall mean the public agency responsible for the essential services functions performed under its authority within an essential services building. The owner is responsible for applying for and obtaining the approvals and certifications required by these regulations.

PLANS as used in these regulations shall mean the drawings associated with the project such as, but not limited to, vicinity maps, site plans, foundation plans, floor plans, ceiling plans, roof plans, cross-sections, interior elevations, exterior elevations and details that are used in conjunction with the project specifications and that are necessary to accomplish construction in conformance with the requirements of the Act.

POLICE STATION shall mean any building that contains the operational facilities and the alarm and communications equipment necessary to respond to police emergencies. This definition shall include the offices of local police departments, county sheriffs, California Highway Patrol and all offices necessary to the functioning of the essential services operation after an earthquake or other disaster.

PROJECT INSPECTOR shall mean any individual duly approved by the enforcement agency as the on-site inspector for a particular project. The Project Inspector shall be employed and paid by the owner and shall act under the general direction of the architect or registered engineer in general responsible charge of the project and under the supervision of the enforcement agency. The Project Inspector shall be responsible for inspecting all work included in the construction contract, except for work that must be inspected by an approved special inspector. (See Section 4-211 (c) for special inspection.)

RECONSTRUCTION is the repair of damage to an existing complying essential services building or an alteration of an existing noncomplying building to bring it into conformance with the safety standards established by these regulations for essential services buildings.

REGISTERED ENGINEER as used in these regulations shall mean a structural engineer, civil engineer, mechanical engineer or electrical engineer holding a valid certificate under Chapter 7, Division 3, of the California Business and Professions Code .

SPECIFICATIONS as used in these regulations shall mean the written document that is used in conjunction with the project plans to establish the job conditions, the quality and quantity of construction materials used in the project and the quality of workmanship required to accomplish the construction in conformance with the provisions of the Act.

Authority: Health and Safety Code Section 16022.

Reference: Health and Safety Code Sections 16003, 16011, 16018 and 16019.

4-208 Application for approval of drawings and specifications.

4-208. Application for approval of drawings and specifications.

(a) Before adopting plans and specifications, the agency responsible for the essential services function shall submit an application to the appropriate enforcing agency for written approval of said plans and specifications except where the new construction is a Type V or Type II-B one-story structure that contains 2000 square feet or less of floor area and is not located in a special studies zone as defined in Section 2622 of the Public Resources Code.

(b) An architect, structural engineer or civil engineer may act as the agent for the essential services agency when filing the application for approval of plans and specifications.

Authority: Health and Safety Code Section 16022.

Reference: Health and Safety Code Sections 16010, 16011 and 16015.

4-209 Designation of responsibilities.

4-209. Designation of responsibilities.

(a) General responsible charge. For every essential services building project there shall be an architect, structural engineer or civil engineer in general responsible charge of plans, specifications and observation of construction, except that plans, specifications and observation of construction may be under the responsible charge of a registered mechanical or electrical engineer for work involving only those respective branches of engineering. A project may be divided into parts, provided that each part is clearly defined by a building or similar distinct unit. The part, so defined, shall include all portions and utility systems or facilities necessary to the complete functioning of that part. Separate assignments of general responsible charge may be made for the parts.

(b) Delegation of responsibility. The architect, structural engineer or civil engineer in general responsible charge may delegate responsibility for any portion of the work to, or may employ, or retain other architects, structural engineers or civil engineers. Registered mechanical and electrical engineers may be delegated responsibility for the mechanical and electrical portions of the work, respectively.

(c) Evidence of responsibility. The stamp and signature of the architect or registered engineer on a plan, specification or other document shall be deemed evidence that full responsibility is assumed by the signator for the work shown thereon, including also those portions of the accompanying computations, specifications or plans that pertain to such work.

(d) Alternates. The applicant, or the architect or registered engineer having general or delegated responsibility, may name one or more persons to act as alternate(s) for the design and/or observations of the work of construction, provided such persons are architects or registered engineers who themselves are qualified under these regulations to assume the responsibility assigned. Authority: Health and Safety Code Section 16022.

Reference: Health and Safety Code Sections 16011, 16012 and 16015.

4-210 Plans, specifications, computations and other data.

4-210. Plans, specifications, computations and other data.

(a) General. When an application is filed, it shall be accompanied by the required number of complete sets of the plans and specifications, the complete structural design calculations, site data and a fee as established by the enforcement agency.

(b) Plans. Plans shall show the use or occupancy of all parts of the essential services buildings and shall give such other information as may be required to indicate the nature of the work proposed and to show compliance with the act and these regulations. The drawings shall be legible and sufficiently detailed and cross-referenced to show clearly the pertinent features of the construction, and shall have sufficient dimensions to be readily interpreted. Where a project includes several buildings, the plans for each shall be drawn independently except that details common to all need not be repeated. Submitted plans and specifications that are obviously incomplete or incorrect shall be returned to the architect or registered engineer in general responsible charge with a request for compliance with these regulations before checking is begun or resumed by the enforcement agency.

(c) Specifications. Specifications shall completely set forth the requirements for the various types of materials that will enter into the permanent construction and shall describe the methods not covered in the technical regulations that are to be used to obtain the required quality of the work shown on the plans.

(d) Design computations. Computations, stress diagrams and other pertinent data shall accompany the plans and specifications and shall be sufficiently complete so that calculations for individual structural members can be readily interpreted. The computations shall be prefaced by a statement clearly and concisely outlining the basis for the structural design and indicating the manner in which the proposed essential services building will resist vertical loads and horizontal forces. The computations shall be sufficiently complete to establish that the structure will resist the loads and forces prescribed in Part 2, Title 24, CCR. Assumed safe bearing pressures on soils and specified strengths of concrete shall be given in the computations and noted on the plans. Where unusual conditions occur, such additional data as are pertinent to the work shall be submitted.

ntal forces. The computations shall be sufficiently complete to establish that the structure will resist the loads and forces prescribed in Part 2, Title 24, CCR. Assumed safe bearing pressures on soils and specified strengths of concrete shall be given in the computations and noted on the plans. Where unusual conditions occur, such additional data as are pertinent to the work shall be submitted.

(e) Site data. Site data for all essential services buildings covered by these regulations shall include a soil investigation report providing information on subsurface site work and laboratory testing, an evaluation of site soil conditions, a recommendation for the type of foundation to be used and an allowable design value for the soil bearing capacity. For all essential services building sites not exempted from the provisions of the Act, a geologic and earthquake hazard report including an evaluation of both known and potentially active local and regional fault systems, slope stability, liquefaction potential and other hazards shall be prepared by competent persons and submitted with the application, plans and specifications. All or parts of the geologic and earthquake hazard investigation and report may be waived by the enforcement agency when in the judgment of the enforcement agency those requirements are unnecessary and would not be beneficial to public safety.

(f) Signatures required. All plans and specifications submitted for approval shall bear the stamp and signature of the architect or professional engineer in general responsible charge of design. When responsibility for a portion of the work has been delegated, the plans and specifications covering that portion of design shall also bear the stamp and signature of the responsible registered engineer or architect.

Authority: Health and Safety Code Section 16022.

Reference: Health and Safety Code Sections 16009, 16011, 16012, 16013 and 16014.

4-211 Observation and inspection of construction.

4-211. Observation and inspection of construction.

(a) Observation by architect or registered engineer. The Act provides that the observation of the work of construction, reconstruction, alteration or addition shall be under the general responsible charge of an architect, structural engineer, civil engineer or, under certain conditions, a registered mechanical or electrical engineer for work involving only those respective branches of engineering. A geotechnical engineer shall provide the observation for placement of fills and shall submit a verified report attesting to the compliance of the engineered fill.

(b) Inspection by Project Inspector. The owner must provide for and require competent, adequate and continuous inspection of all construction work by a Project Inspector approved for each individual project by the enforcement agency. The Project Inspector so approved shall cooperate with the architect or registered engineer in general responsible charge of the observation of the work of construction to ensure compliance with the approved drawings and specifications. The Project Inspector shall request interpretations and clarifications of the approved contract drawings and specifications when necessary from the responsible architect or registered engineer.

For every project there shall be a Project Inspector who shall have personal knowledge as defined in Section 16021 of the Health and Safety Code of all work done on the project or its parts. On large projects adequate inspection may require the employment of one or more approved assistant inspectors. The employment of special inspectors or assistant inspectors shall not be construed as relieving the Project Inspector of his/her duties and responsibilities under Sections 4-214 and 4-219 of these regulations. The Project Inspector shall, under the direction of the architect or engineer, be responsible for monitoring the work of the special inspectors and testing laboratories to ensure that the special inspection and testing program is satisfactorily completed.

No work shall be carried out except under the inspection of the Project Inspector approved by the enforcement agency. The Project Inspector shall have had at least three years equivalent experience in construction work of a type similar to that for which he/she is proposed as inspector, shall have a thorough knowledge of building materials and shall be able to read and interpret plans and specifications.

The cost of project inspection shall be paid for by the owner (see “Project Inspector” definition in Section 4-207).

(c) Special inspection. Special inspection by inspectors specially approved by the enforcement agency may be required for masonry construction, glued laminated timber fabrication, wood framing using timber connectors, concrete batching, shotcrete, prestressed concrete, structural steel fabrication, high-strength steel bolt installations, welding, pile driving, electrical work or mechanical work. The cost of all special inspectors required by this section shall be paid for by the owner.

ent agency may be required for masonry construction, glued laminated timber fabrication, wood framing using timber connectors, concrete batching, shotcrete, prestressed concrete, structural steel fabrication, high-strength steel bolt installations, welding, pile driving, electrical work or mechanical work. The cost of all special inspectors required by this section shall be paid for by the owner.

The Project Inspector may perform special inspections if the Project Inspector has been specially approved for such purposes and has the time available to complete the special inspections in addition to project inspection work.

The detailed inspection of all work covered by this section is the responsibility of the Project Inspector when special inspection is not provided. The enforcement agency may require special inspection for shop fabrication procedures that preclude the complete inspection of the work after assembly. The enforcement agency may require special inspection at the site in addition to those listed above if found necessary because of the special use of material or methods of construction.

Approved special inspectors shall submit verified reports as required by Section 4-214, for the special work covered. Special inspectors shall periodically submit reports of inspections to the enforcement agency, the architect, the registered engineer responsible for the observation of structural work and the Project Inspector. Construction work that the special inspector finds not to be in compliance with the approved plans and specifications, and that is not immediately corrected upon notifying the contractor, shall be reported immediately to the Project Inspector, the enforcement agency, the architect and the registered engineer responsible for observation of the structural work.

Authority: Health and Safety Code Sections 16017 and 16022.

Reference: Health and Safety Code Sections 16015, 16017, 16020 and 16021.

4-212 Supervision of construction by the enforcement agency.

During the construction, reconstruction, repair, alteration of or addition to any essential service

4-212. Supervision of construction by the enforcement agency. During the construction, reconstruction, repair, alteration of or addition to any essential services building, the enforcement agency as provided in the Act, shall make such site visits and observations as in its judgment is necessary or proper for enforcement of the Act and the protection of the safety of the occupants of the building and the public. If at any time as the work progresses it is found that modifications or changes are necessary to achieve compliance with building standards, the enforcement agency shall direct the architect or registered engineer in general responsible charge to prepare and submit documents covering such modifications or changes for the review and approval of the enforcement agency.

Authority: Health and Safety Code Section 16022.

Reference: Health and Safety Code Sections 16001, 16009 and 16020.

4-213 Tests.

4-213. Tests.

(a) General. Tests of materials are required as set forth in the approved plans and specifications and in Part 2, Title 24, CCR. Where job conditions warrant, the architect or registered engineer may waive certain tests with the approval of the enforcement agency. A list of all required tests of materials and of all required special inspections shall be prepared and submitted by the architect, structural engineer, or civil engineer in general responsible charge of the project at the time the plans and specifications are stamped for identification by the enforcement agency.

(b) Test sampling. Test samples or specimens of material for testing may be taken by the architect or registered engineer, the architect’s or engineer’s representative, the Project Inspector or a representative of the testing agency. In no case shall the contractor, his employee or a vendor select the samples or specimens.

(c) Test reports. One copy of all test reports shall be forwarded by the testing agency to the enforcement agency, the architect, the registered engineer responsible for observation of the structural work and the Project Inspector. Such reports shall include all tests made, regardless of whether such tests indicate that the material is satisfactory or unsatisfactory. Records of special sampling operations shall also be reported. The reports shall show that the material or materials were sampled and tested in accordance with the requirements of these regulations and with the approved plans and specifications. In the case of masonry or concrete, test reports shall show the specified design strength. Test reports shall also state whether or not the material or materials tested comply with the requirements of the approved plans and specifications.

(d) Verification of test reports. Each testing agency shall submit to the enforcement agency a verified report, covering all tests and inspections that were required to be performed as of the date that work on the project is suspended or the services of the testing laboratory are terminated, and at the completion of the project, covering all of required tests and inspections. The verified report shall be signed, under penalty of perjury, by the professional engineer charged with engineering managerial responsibility for the laboratory. The verified report shall indicate that all tests and inspections were made as required by the approved plans and specifications, and shall list any noncompliant tests or inspections that have not been resolved by the date of the verified report. In the event that not all required tests or inspections were made by the laboratory making this verified report, those tests and inspections not made shall be listed on the verified report.

Authority: Health and Safety Code Section 16022.

Reference: Health and Safety Code Sections 16009, 16020 and 16021.

4-214 Verified reports.

Sections 16020 and 16021 of the Act require that from time to time as the work of construction progresses, the architect or registered e

4-214. Verified reports. Sections 16020 and 16021 of the Act require that from time to time as the work of construction progresses, the architect or registered engineer in charge of observation of the work, each architect or registered engineer delegated responsibility for observation of a portion of the work, the Project Inspector, approved special inspectors and the contractor shall each make and sign under penalty of perjury, a duly verified report to the enforcement agency upon a prescribed form or forms, showing that of his or her own personal knowledge the work during the period covered by the report has been performed and materials have been used and installed in every material respect in compliance with the duly approved plans and specifications, and setting forth such detailed statement of fact as shall be required.

The term “personal knowledge” as applied to an architect or registered engineer means the personal knowledge that is obtained from periodic visits of reasonable frequency to the project site for the purpose of general observation of the work, and that is obtained from the reporting of others on the progress of the work, testing of materials, inspection and superintendence of the work. The exercise of reasonable diligence to obtain the facts is required.

The term “personal knowledge” as applied to an inspector means the actual personal knowledge that is obtained from the inspector’s personal continuous inspection of the work in all stages of its progress. For work performed away from the site, the Project

Inspector may obtain personal knowledge from the reporting of testing or special inspection of materials and workmanship for compliance with approved plans, specifications and applicable standards. The exercise of reasonable diligence to obtain the facts is required.

The term “personal knowledge” as applied to the contractor means the personal knowledge gained from constructing the building. The exercise of reasonable diligence to obtain the facts is required.

See Article 2, Section 4-240 and Article 3, Section 4-249 for the reporting requirements to state and local enforcement agencies, respectively.

Authority: Health and Safety Code Sections 16020, 16021 and 16022.

Reference: Health and Safety Code Sections 16020 and 16021.

4-215 Changes in the approved drawings and specifications.

4-215. Changes in the approved drawings and specifications.

(a) General. All work shall be executed in accordance with the approved plans and specifications except where documents authorizing changes have been submitted by the responsible architect or registered engineer to the enforcement agency for review and approval. These documents shall describe the authorized changes, show the increase or decrease in the contract cost involved and shall contain the signatures of the responsible architect or registered engineer and the owner and shall bear the approval stamp of the enforcement agency.

Authority: Health and Safety Code Section 16022.

Reference: Health and Safety Code Sections 16011, 16013 and 16015.

4-216 Final certification of compliance.

The certification of compliance for the essential services building shall be issued by the enforcement agency when the

4-216. Final certification of compliance. The certification of compliance for the essential services building shall be issued by the enforcement agency when the project has been completed in accordance with the requirements as to safety of design and construction with Sections 16000-16023 of the Health and Safety Code (Essential Services Buildings Seismic Safety Act) and with the requirements of these regulations. The certification of compliance will be evidenced by a letter or a certificate of occupancy each of which shall contain a statement that the building design and review and the work of construction have been completed in accordance with the requirements of Sections 16000 through 16023 of the Health and Safety Code and of Part 1, Title 24, CCR. The certificate of compliance will be directed to the owner of the essential services building.

Local enforcement agencies shall forward one copy of the certification of compliance to the DSA Headquarters Office in Sacramento.

Authority: Health and Safety Code Section 16022. Reference: Health and Safety Code Sections 16009 and 16022.

4-217 Duties of the architect and registered engineers.

4-217. Duties of the architect and registered engineers.

(a) General. The architect or registered engineer is responsible to the owner and to the enforcement agency to see that the completed work conforms in every material respect to these regulations and the approved plans and specifications. The architect or registered engineer may, if so authorized, act as agent for the owner in completing and submitting the application to the enforcement agency.

The architect or registered engineer, in no way, is relieved of any responsibility by the activities of the enforcement agency in the performance of its duties.

(b) General responsible charge. The architect or registered engineer in general responsible charge shall advise the owner in regard to filing of the application for approval of plans, the selection of a Project Inspector and the selection of a testing laboratory. The architect or registered engineer shall prepare the plans, specifications, design computations and other data and shall prepare documents authorizing changes in the approved drawings and specifications when so directed by the owner or as required by conditions on the project. The architect or registered engineer shall make, or cause to be made, the corrections required on the various documents to comply with the requirements of these regulations and shall provide the Project Inspector and testing agency with a complete set of stamped plans, specifications and documents authorizing changes.

The enforcement agency directs all technical correspondence to the architect or registered engineer in general responsible charge of the project.

(c) Architect or engineer verified reports. All architects and registered engineers having responsibility for observation of the work of construction shall maintain such personal contact with the project as is necessary to assure themselves of compliance in every material respect with the approved plans and specifications and shall submit verified reports to the enforcement agency as required in Section 4-214. The architect or registered engineer in general responsible charge shall be responsible for the timely submittal of the required verified reports from the Project Inspector, the contractor and any other architects or engineers who have been delegated responsibility for observation of the work.

(d) Testing program. The architect or registered engineer in general responsible charge shall establish the extent of the testing of materials consistent with the needs of the particular project and shall issue specific instructions to the testing agency. The architect or registered engineer shall also notify the enforcement agency as to the disposition of materials noted on laboratory reports as not conforming to the approved plans and specifications.

Authority: Health and Safety Code Section 16022.

Reference: Health and Safety Code Sections 16015 and 16020.

4-218 Duties of the mechanical and electrical engineers.

The architect, structural engineer or civil engineer in general responsible charge retains overall resp

4-218. Duties of the mechanical and electrical engineers. The architect, structural engineer or civil engineer in general responsible charge retains overall responsibility for the mechanical and electrical portions of the work when the design responsibility for that work has been delegated and the plans have been prepared by registered mechanical and electrical engineers.

Where plans, specifications and estimates for alterations or repairs only involve mechanical or electrical work, said plans, specifications and estimates may be prepared and the work of construction observed by a registered mechanical or electrical engineer, respectively, who shall be in general responsible charge.

The mechanical or electrical engineer shall fulfill the duties outlined in Section 4-217 when assuming general responsible charge and shall submit verified reports as required in Section 4-214. When accepting delegated responsibility, the mechanical or electrical engineer shall comply with the requirements of Sections 4-209 and 4-210 insofar as these may relate to the delegated work.

Authority: Health and Safety Code Section 16022.

Reference: Health and Safety Code Section 16015.

4-219 Duties of the Project Inspector.

4-219. Duties of the Project Inspector.

(a) General. The Project Inspector shall act under the general direction of the architect or registered engineer and under the supervision of the enforcement agency.

(b) Duties. The general duties of the Project Inspector in fulfilling project inspection responsibilities are as follows:

  1. Continuous inspection requirements. The Project Inspector must have actual personal knowledge obtained by personal and continuous inspection of the work of construction in all stages of its progress that the requirements of the approved plans and specifications are being executed.

Continuous inspection means complete inspection of every part of the work. Work, such as concrete work or masonry work that can be inspected only as it is placed, shall require the constant presence of the Project Inspector. Other types of work that can be completely inspected after the work is installed may be carried on while the Project Inspector is not present. In any case, the Project Inspector must personally inspect every part of the work. In no case shall the Project Inspector have or assume any duties that will prevent him or her from providing continuous inspection.

The Project Inspector may obtain personal knowledge of the work of construction, either on-site or off-site, from the inspections performed by special inspectors or approved assistant inspectors and from the reporting of others on testing and inspection of materials and workmanship for compliance with the plans, specifications and applicable standards. The exercise of reasonable diligence to obtain the facts shall be required.

  1. Relations with the architect or engineer. The Project Inspector shall work under the general direction of the architect or registered engineer. Any uncertainties in the inspector’s comprehension of the plans and specifications shall be reported promptly to the architect or registered engineer for his/her interpretation and instructions. In no case shall the instructions of the architect or registered engineer be construed to cause work to be done that is not in conformity with the approved plans, specifications and documents authorizing changes.

  2. Job file. The Project Inspector shall keep a file of approved plans and specifications (including all approved documents authorizing changes) on the job at all times.

  3. Construction procedure records. The Project Inspector shall keep a record of certain construction procedures including, but not limited to the following:

    • A. Concrete pouring operations. The records show the time and date of placing concrete and the time and date of removal of forms in each portion of the structure.

    • B. Welding operations. The record shall include identification marks of welders, lists of defective welds, manner of correction of defects, etc.

    • C. Penetration under the last ten (10) blows for each pile when piles are driven for foundations. All such records of construction procedures shall be kept on the job until the completion of the work. These records

  • shall be made a part of the permanent records of the owner.
  1. Deviations. The Project Inspector shall notify the contractor, in writing, of any deviations from the approved plans and specifications that are not immediately corrected by the contractor when brought to the contractor’s attention. Copies of such notice shall be forwarded immediately to the architect or registered engineer and to the enforcement agency. Failure on the part of the Project Inspector to notify the contractor of deviations from the approved plans and specifica-

tions shall in no way relieve the contractor of any responsibility to complete the work covered by his or her contract in accordance with the approved plans and specifications and all laws and regulations.

  1. Verified reports. The Project Inspector shall submit to the enforcement agency verified reports as required in Section 4-214.

(c) Violations. Failure, refusal or neglect on the part of the Project Inspector to notify the contractor of any work that does not comply with the requirements of the approved plans and specifications, or failure, refusal or neglect to report immediately, in writing any such violation to the architect or registered engineer, to the owner and to the enforcement agency shall constitute a violation of the Act and shall be cause for the enforcement agency to take action, which may result in withdrawal of the inspector’s approval.

Authority: Health and Safety Code Section 16022.

Reference: Health and Safety Code Sections 16017 and 16021.

4-220 Duties of the contractor.

4-220. Duties of the contractor.

(a) Responsibilities. It is the duty of the contractor to complete the work covered by his or her contract in accordance with the approved plans and specifications therefore. The contractor in no way is relieved of any responsibility by the activities of the architect, registered engineer, Project Inspector or the enforcement agency in the performance of their duties.

(b) Performance of the work. The contractor shall study carefully the approved plans and specifications and shall plan his schedule of operations well ahead of time. If at any time it is discovered the work is being done that is not in accordance with the approved plans and specifications, the contractor shall correct the work immediately.

All inconsistencies or items that appear to be in error in the plans and specifications shall be promptly called to the attention of the architect or registered engineer, through the Project Inspector, for interpretation or correction. In no case, however, shall the instruction of the architect or registered engineer be construed to cause work to be done that is not in conformity with the approved plans, specifications, construction change documents and standards.

The contractor must notify the Project Inspector, in advance, of the commencement of construction of each and every aspect of the work.

(c) Verified reports. The contractor shall make and submit to the enforcement agency from time to time, verified reports as required in Section 4-214.

If work on the building is being done by independent contractors having contracts with the owner, verified reports shall be submitted by each contractor regardless of the type of work involved.

Authority: Health and Safety Code Section 16022.

Reference: Health and Safety Code Section 16021.

4-221 Records.

DSA shall maintain a record of the approved plans, specifications, addenda, construction change documents and letters of certification for state-

4-221. Records. DSA shall maintain a record of the approved plans, specifications, addenda, construction change documents and letters of certification for state-owned or state-leased essential services buildings that have been certified as complying with the provisions of the Act. DSA shall also maintain a record of the letters of compliance for essential services buildings built under the jurisdiction of local enforcement agencies that have been submitted to DSA by those agencies.

Authority: Health and Safety Code Section 16022.

Reference: Health and Safety Code Section 16022.

4-222 Advisory board.

4-222. Advisory board.

(a) General. The State Architect may appoint an advisory board whose duty it is to serve in an advisory capacity to DSA in connection with administrative matters and with reference to regulations and requirements pertaining to the administration of the Act. This board shall also act as a board of review to which appeal can be made by owners, architects, engineers or other interested parties in case of disagreement with the interpretation by the local enforcement agencies and/or local appeals board of the Essential Services Buildings Seismic Safety Act or the regulations adopted pursuant thereto. For state agencies, the Advisory Board shall act as an appeals board for disagreements with the rulings, decisions, interpretations or acts of DSA.

(b) Membership. The said board shall consist of nine members appointed by the State Architect and four ex-officio members who are: State Architect, the Chief Structural Engineer of DSA, the California State Fire Marshal, the Executive Director of the Building Standards Commission and the Chairman of the Seismic Safety Commission. The ex-officio board members may appoint alternates to serve on the board as their representatives. Of the appointive members, one shall be an architect, one shall be a structural engineer, one shall be a civil engineer, one shall be a mechanical engineer or an electrical engineer, one shall be a representative of the League of California Cities, one shall be a representative of the County Supervisors Association, one shall be a representative of the California Building Officials, one shall be a representative of the California Fire Chiefs Association and one shall be a representative of a law enforcement agency. The appointive members shall serve at the pleasure of the State Architect. The State Architect will select appointive members from nominations solicited from the California Council, American Institute of Architects, the Structural Engineers Association of California, the Consulting Engineers and Land Surveyors Association of California, the California Building Officials, the League of California Cities, the County Supervisors Association, the California Peace Officers Association and from the California Fire Chiefs Association. The State Architect may also appoint additional ex-officio members. Ex-officio members are not entitled to vote in board actions.

ia, the Consulting Engineers and Land Surveyors Association of California, the California Building Officials, the League of California Cities, the County Supervisors Association, the California Peace Officers Association and from the California Fire Chiefs Association. The State Architect may also appoint additional ex-officio members. Ex-officio members are not entitled to vote in board actions.

(c) Meetings. The board shall elect its own chairperson and vice-chairperson and shall convene upon the call of the chairperson or the State Architect whenever it may be necessary in the chairperson’s or State Architect’s judgment for the board to meet. The board shall adopt such rules of procedure as are necessary to enable it to perform the obligations delegated to it. The chairperson of the board shall at his or her discretion or upon the instruction of the board designate subcommittees to study and report back to the board on any technical subject or matter for which an independent study is desired or regarding appeals that are made to the board from interpretations of the enforcement agencies. The board members will be reimbursed for their reasonable expenses in attending meetings but shall receive no compensation for their services.

Authority: Health and Safety Code Section 16022. Reference: Health and Safety Code Section 16022.

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Contents — 2025 California Administrative Code (Title 24, Part 1)
2025 California Administrative Code (Title 24, Part 1)
  1. Chapter 1 — ADMINISTRATIVE REGULATIONS OF THE CALIFORNIA BUILD…
  2. Chapter 2 — ADMINISTRATIVE REGULATIONS FOR THE DEPARTMENT OF H…
  3. Chapter 3 — ADMINISTRATIVE REGULATIONS FOR THE OFFICE OF THE S…
  4. Chapter 4 — ADMINISTRATIVE REGULATIONS FOR THE DIVISION OF THE…
  5. Chapter 5 — ACCESS TO PUBLIC BUILDINGS BY PERSONS WITH DISABIL…
  6. Chapter 6 — SEISMIC EVALUATION PROCEDURES FOR HOSPITAL BUILDINGS
  7. Chapter 7 — SAFETY STANDARDS FOR HEALTH FACILITIES
  8. Chapter 8 — ADMINISTRATIVE REGULATIONS FOR THE CALIFORNIA DEPA…
  9. Chapter 9 — ADMINISTRATIVE REGULATIONS FOR THE OCCUPATIONAL SA…
  10. Chapter 10 — ADMINISTRATIVE REGULATIONS FOR THE CALIFORNIA ENE…
  11. Chapter 11 — ADMINISTRATIVE REGULATIONS FOR THE DEPARTMENT OF …
  12. Chapter 12 — ADMINISTRATIVE REGULATIONS FOR THE DEPARTMENT OF …
  13. Chapter 13 — ADMINISTRATIVE REGULATIONS FOR THE BOARD OF STATE…
  14. Chapter 14 — ADMINISTRATIVE REGULATIONS FOR THE DEPARTMENT OF …
  15. Chapter 15 — DEPARTMENT OF CONSUMER AFFAIRS
  16. Chapter 16 — CALIFORNIA STATE LIBRARY

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