CBC · California Building Code

What inspections are required and how are they scheduled?

Before you cover or move past any stage of permitted work, call your local building department—the CBC requires you to notify the building official for the listed inspections (footings, slabs, framing, energy checks, final, etc.) and to submit/adhere to Chapter 17 procedures for special inspections. Failure to have inspectors approve work at the specified stages (and to submit flood elevation docs where required) can delay the project and require uncovering work for re‑inspection.

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Last reviewed: July 5, 2026

What the code requires — 2-4 sentences

The California Building Code (CBC) requires that construction for which a permit is issued be made available for inspection and that the building official, upon notification, make the inspections listed in Section § 110.3. The permit holder (or their authorized agent) is responsible to notify the building official when work is ready for inspection (§ 110.5) and may not proceed past the point of an inspection without approval (§ 110.6) .

Requirements in detail

Core rule

  • Inspections enumerated in § 110.3 must be made by the building official upon notification. The CBC lists specific required inspection stages (footings/foundations, slabs, framing, energy efficiency checks, final inspection, etc.) and authorizes other inspections as needed (§ 110.3) .
  • Special inspections called out by the code are handled under Chapter 17; § 110.3.11 points to that chapter for the requirements and procedures for special inspections (§ 110.3.11) .

Decision table — typical inspections, when to call, and code references

Inspection name When to request (work stage) Who must request Code reference
Footing / foundation inspection After excavation & reinforcing steel in place (forms in place for concrete) Permit holder or authorized agent § 110.3.1
Concrete slab / under‑floor inspection After in‑slab or under‑floor reinforcing, conduit, piping, etc., but before concrete or subfloor is placed Permit holder or authorized agent § 110.3.2
Lowest floor elevation (flood areas) Upon placement of lowest floor and prior to further vertical construction; elevation certification must be submitted Permit holder / design pro (where required) § 110.3.3
Framing inspection After roof deck/sheathing, all framing, fire‑blocking & bracing are in place; concealed pipes/chimneys/vents complete and rough trades approved Permit holder or authorized agent § 110.3.4
Energy efficiency inspections To verify compliance with Chapter 13 (insulation, fenestration U‑values, duct R‑value, equipment efficiency) Permit holder or authorized agent § 110.3.9
Other inspections (as required) Whenever building official needs to determine code compliance Building official may require; permit holder must provide access § 110.3.10
Special inspections (see Chapter 17) As required by Chapter 17 for specified materials/systems (seismic, wind, fabrication, EIFS, intumescent coatings, etc.) Owner/applicant must submit statement; approved agencies perform or report § 110.3.11; Chapter 17 (e.g., 1704, 1705)
Final inspection After all permit work is complete; flood documentation submitted first if in flood hazard area Permit holder / owner § 110.3.12 & § 110.3.12.1

Notes:

  • The CBC gives the inspection stages and responsibilities; operational details (how to book an inspection, minimum lead time, reinspection fees) are set by the enforcing agency (local building department) and by related trade codes (see “Scheduling logistics” below) .

Special inspections (Chapter 17) — short summary of the CBC procedure

  • When Chapter 17 requires special inspections or tests, the applicant must submit a statement of special inspections describing materials/systems to be inspected and the type/extent of inspection (continuous, periodic, etc.) and identify who will perform them (§ 1704 and subparts) .
  • Special inspectors and approved agencies must demonstrate qualifications and keep/submit inspection reports at frequencies set by the construction documents or the building official (§ 1704.2.1, § 1704.2.4) .
  • Chapter 17 also lists required special inspections for seismic and wind resistance and fabricated elements (see Sections 1705.x) .

Scheduling logistics (what the CBC says vs. what jurisdictions/trade codes add)

  • CBC: Permit holder must notify the building official when work is ready for inspection (§ 110.5) and must not proceed beyond the point indicated for that inspection without approval (§ 110.6) .
  • Local practice / trade codes: many jurisdictions or trade codes require advance notice (for example, the California Mechanical and Plumbing Codes allow the AHJ to require at least one working day / 24 hours' notice for inspection requests) and permit reinspection fees when work is not ready or access is not provided (§ 105.2.3 / § 105.2.4 in the Mechanical/Plumbing Codes) .
  • Practical tip: check the local building department’s inspection scheduling rules (phone, portal, minimum lead time, cancellation policy, reinspection fees). Those local rules implement CBC duties but are not spelled out in § 110.3–110.6.

Exceptions & special cases

  • Special inspections: the CBC channels all special‑inspection requirements to Chapter 17 rather than § 110.3 itself; Chapter 17 contains many exceptions and thresholds (for example, some light‑frame work is exempt in limited seismic/wind cases) — see 1704/1705 for details and exceptions (§ 110.3.11 and Chapter 17) .
  • Flood hazard documentation: if the project is in a flood hazard area, elevation certification (or dry‑floodproofing elevation) must be submitted before final inspection (§ 110.3.12.1) .
  • Trade‑specific rules: mechanical, plumbing and other trade codes include their own required inspections, timing (e.g., underground, rough, final), and may require advance notice/hold times — these are separate code sections that work alongside CBC §§ 110.3–110.6 (see example trade code provisions) .

If you need an authoritative interpretation about scheduling windows, reinspection fees, or how the AHJ implements § 110.5/§ 110.6 in your city/county, consult the local building department — the CBC requires notification but leaves administrative detail to the enforcing agency (§ 110.5, § 110.6) .

Common mistakes

  • Calling an inspection after work has already been covered or concealed (violates § 110.6; inspector can require uncovering and may assess reinspection fees per local policy) — don’t cover work until inspected and approved (§ 110.6) .
  • Assuming a uniform statewide lead time or booking method — the CBC requires notification but not a statewide scheduling procedure; local departments or trade codes set lead times and procedures (§ 110.5) .
  • Omitting required special‑inspection documentation — where Chapter 17 applies, failing to submit a Statement of Special Inspections or to provide qualified inspectors can delay approvals (§ 110.3.11; see § 1704 for submission and qualification requirements) .
  • Not providing access, materials, test apparatus, or plans at the inspection — CBC and trade codes require the permit holder to furnish access and necessary test equipment or documentation (§ 110.5; trade code examples) .

Worked example — single‑family home, concrete foundation and slab

Scenario: A permit is issued for a new single‑family house. The contractor completes excavation for footings and sets reinforcing steel on Day 10.

  1. Footing/Foundation inspection: The contractor must notify the building official that footings are ready. The building official will inspect after excavation and rebar are in place (forms in place for concrete foundations) — this is governed by § 110.3.1. If the foundation is concrete and a ready‑mixed truck is en route (ASTM C94), the CBC allows the concrete not to be on site before inspection, but reinforcement and forms must be inspectable (§ 110.3.1) .
  2. Slab/under‑floor inspection: Before placing concrete for the slab, the contractor must call the slab/under‑floor inspection (§ 110.3.2). The inspector must see in‑slab reinforcing, conduit/piping, and other items that will be concealed before concrete is placed (§ 110.3.2) .
  3. If special inspections apply (for example, if the structural design requires special seismic welding inspection), the owner’s team must have submitted the statement of special inspections and have approved special inspectors available per Chapter 17 before that portion of work proceeds (§ 110.3.11; Chapters 1704–1705) .
  4. Final inspection: After all work is complete and, in this example, if the site is in a flood hazard area the elevation certificate is delivered, the contractor requests final inspection per § 110.3.12 and the building official will make the final inspection and either approve or list outstanding corrections (§ 110.3.12 & § 110.3.12.1) .

This sequence illustrates the rule that you must call the inspection at the stage the CBC identifies and not proceed beyond an inspection point without approval (§ 110.5–110.6) .

Related provisions

  • § 110.1 — General inspection authority and duty to keep work accessible
  • § 110.2 — Preliminary inspection (building official may examine site before issuing a permit)
  • § 110.3 — Required inspections (includes the list and directs to Chapter 17 for special inspections)
  • § 110.3.11 — Special inspections; see Chapter 17 for process and requirements
  • § 110.3.12 & § 110.3.12.1 — Final inspection and flood‑hazard documentation requirement prior to final inspection
  • Chapter 17 (e.g., § 1704, § 1705) — Statement of special inspections, qualifications, required periodic/continuous inspections and tests for seismic/wind/fabricated items
  • Trade codes (Mechanical/Plumbing) — examples of advance‑notice, required trade inspection stages (underground, rough, final), and reinspection provisions: see California Mechanical and Plumbing Code sections on inspections and inspection requests (§ 105.x) .

Code references

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

  • CBC § 109.4 High relevance — show source text

    [A] 109.4 Work commencing before permit issuance. Any person who commences any work before obtaining the necessary permits shall be subject to a fee established by the building official that shall be in addition to the required permit fees.

    [A] 109.5 Related fees. The payment of the fee for the construction, alteration, removal or demolition for work done in connection to or concurrently with the work authorized by a building permit shall not relieve the applicant or holder of the permit from the payment of other fees that are prescribed by law.

    [A] 109.6 Refunds. The building official is authorized to establish a refund policy.

    SECTION 110—INSPECTIONS

    [A] 110.1 General. Construction or work for which a permit is required shall be subject to inspection by the building official and such construction or work shall remain visible and able to be accessed for inspection purposes until approved. Approval as a result of an inspection shall not be construed to be an approval of a violation of the provisions of this code or of other ordinances of the jurisdiction. Inspections presuming to give authority to violate or cancel the provisions of this code or of other ordinances of the jurisdiction shall not be valid. It shall be the duty of the owner or the owner’s authorized agent to cause the work to remain visible and able to be accessed for inspection purposes. Neither the building official nor the jurisdiction shall be liable for expense entailed in the removal or replacement of any material required to allow inspection.

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    ADMINISTRATION

    [A] 110.2 Preliminary inspection. Before issuing a permit, the building official is authorized to examine or cause to be examined buildings, structures and sites for which an application has been filed.

    [A] 110.3 Required inspections. The building official, upon notification, shall make the inspections set forth in Sections 110.3.1 through 110.3.12.

    [A] 110.3.1 Footing and foundation inspection. Footing and foundation inspections shall be made after excavations for footings are complete and any required reinforcing steel is in place. For concrete foundations, any required forms shall be in place prior to inspection. Materials for the foundation shall be on the job, except where concrete is ready mixed in accordance with ASTM C94, the concrete need not be on the job.

    [A] 110.3.2 Concrete slab and under-floor inspection. Concrete slab and under-floor inspections shall be made after in-slab or under-floor reinforcing steel and building service equipment, conduit, piping accessories and other ancillary equipment items are in place, but before any concrete is placed or floor sheathing installed, including the subfloor.

    [A] 110.3.3 Lowest floor elevation. In flood hazard areas, upon placement of the lowest floor, including the basement, and prior to further vertical construction, the elevation certification required in Section 1612.4 or the California Residential Code, as applicable, shall be submitted to the building official.

    [A] 110.3.4 Frame inspection. Framing inspections shall be made after the roof deck or sheathing, all framing, fire-blocking and bracing are in place and pipes, chimneys and vents to be concealed are complete and the rough electrical, plumbing, heating wires, pipes and ducts are approved.

  • CBC § 3.1 High relevance — show source text

    [DSA-SS, DSA-SS/CC] The exception is not permitted by DSA.

    1704 A .3.1 Content of statement of special inspections. The statement of special inspections shall identify the following:

    1. The materials, systems, components and work required to have special inspections or tests by the building official or by the registered design professional responsible for each portion of the work.

    2. The type and extent of each special inspection.

    3. The type and extent of each test.

    4. Additional requirements for special inspections or tests for seismic or wind resistance as specified in Sections 1705 A .12, 1705 A .13 and 1705 A .14.

    5. For each type of special inspection, identification as to whether it will be continuous special inspection, periodic special inspection or performed in accordance with the notation used in the referenced standard where the inspections are defined.

    6. Deferred submittal items that require a supplemental statement of special inspections.

    1704 A .3.2 Seismic requirements in the statement of special inspections. Where Section 1705 A .13 or 1705 A .14 specifies special inspections or tests for seismic resistance, the statement of special inspections shall identify the equipment/components that require special seismic certification and seismic force-resisting systems that are subject to the special inspections or tests.

    1704 A .3.3 Wind requirements in the statement of special inspections. Where Section 1705 A .12 specifies special inspection for wind resistance, the statement of special inspections shall identify the main windforce-resisting systems and wind-resisting components that are subject to special inspections.

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    SPECIAL INSPECTIONS AND TESTS

    1704 A .4 Contractor responsibility. Each contractor responsible for the construction of a main wind- or seismic force-resisting system, installation of equipment/components requiring special seismic certification or a wind- or seismic force-resisting component listed in the statement of special inspections shall submit a written statement of responsibility to the building official and the owner or the owner’s authorized agent prior to the commencement of work on the system or component. The contractor’s statement of responsibility shall contain acknowledgement of awareness of the special requirements contained in the statement of special inspections. [DSA-SS, DSA-SS/CC] The contractor’s statement is required only when specified on the approved construction documents.

    1704 A .5 Submittals to the building official. In addition to the submittal of reports of special inspections and tests in accordance with Section 1704 A .2.4, reports and certificates shall be submitted by the owner or the owner’s authorized agent to the building official for each of the following:

    1. Reserved.

    2. Reserved.

    3. Certificates of compliance for equipment/components requiring special seismic certification in accordance with Section 1705 A .14.3.

    4. Reports of preconstruction tests for shotcrete in accordance with ACI 318 and Section 1705A.3.9.2.

    5. Certificates of compliance for open web steel joists and joist girders in accordance with Section 2207 A. 5.

  • CBC § 2.1 High relevance — show source text

    1704 A .2.1 Special inspector qualifications. Prior to the start of the construction, the approved agencies shall provide written documentation to the building official demonstrating the competence and relevant experience or training of the special inspectors who will perform the special inspections and tests during construction. Experience or training shall be considered to be relevant where the documented experience or training is related in complexity to the same type of special inspection or testing activities for projects of similar complexity and material qualities. These qualifications are in addition to qualifications specified in other sections of this code.

    The registered design professional in responsible charge and engineers of record involved in the design of the project are permitted to act as an approved agency and their personnel are permitted to act as special inspectors for the work designed by them, provided they qualify as special inspectors.

    1704 A .2.2 Access for special inspection. The construction or work for which special inspection or testing is required shall remain accessible and exposed for special inspection or testing purposes until completion of the required special inspections or tests.

    1704 A .2.3 Statement of special inspections. The applicant shall submit a statement of special inspections prepared by the regis- tered design professional in general responsible charge in accordance with Section 107.1 as a condition for construction documents review . This statement shall be in accordance with Section 1704 A .3.

    [DSA-SS, DSA-SS/CC] Reference to Section 107.1 shall be to the California Administrative Code instead.

    1704 A .2.4 Report requirement. The inspector(s) of record and approved agencies shall keep records of special inspections and tests. The inspector of record and approved agency shall submit reports of special inspections and tests to the building official and to the registered design professional in responsible charge at frequencies required by the approved construction documents or building official as required by the California Administrative Code . All reports shall describe the nature and extent of inspections and tests, the location where the inspections and tests were performed, and indicate that work inspected or tested was or was not completed in conformance to approved construction documents . Discrepancies shall be brought to the immediate attention of the contractor for correction. If they are not corrected, the discrepancies shall be brought to the attention of the building official and to the registered design professional in responsible charge prior to the completion of that phase of the work. A final report documenting required special inspections and tests, and correction of any discrepancies noted in the inspections or tests, shall be submitted at a point in time agreed upon prior to the start of work by the owner or the owner’s authorized agent to the building official.

    1704 A .2.5 Special inspection of fabricated items. Where fabrication of structural, load-bearing or lateral load-resisting members or assemblies is being conducted on the premises of a fabricator’s shop, special inspections of the fabricated items shall be performed during fabrication.

    1704 A .2.5.1 Fabricator approval. Not permitted by DSA-SS, DSA-SS/CC or OSHPD.

    1704 A .3 Statement of special inspections. Where special inspections or tests are required by Section 1705 A, the registered design professional in responsible charge shall prepare a statement of special inspections in accordance with Section 1704 A .3.1 for submittal by the applicant in accordance with Section 1704 A .2.3.

  • CBC § 1705.12.2 High relevance — show source text

    1705.12.2 Cold-formed steel light-frame construction. Periodic special inspection is required for welding operations of elements of the main windforce-resisting system. Periodic special inspection is required for screw attachment, bolting, anchoring and other fastening of elements of the main windforce-resisting system, including shear walls, braces, diaphragms, collectors (drag struts) and hold-downs.

    Exception: Special inspections are not required for cold-formed steel light-frame shear walls and diaphragms, including screwing, bolting, anchoring and other fastening to components of the windforce-resisting system, where either of the following applies:

    1. The sheathing is gypsum board or fiberboard.
    2. The sheathing is wood structural panel or steel sheets on only one side of the shear wall, shear panel or diaphragm assembly and the specified fastener spacing at the panel or sheet edges is more than 4 inches (102 mm) on center (o.c.).

    1705.12.3 Wind-resisting components. Periodic special inspection is required for fastening of the following systems and components:

    1. Roof covering, roof deck and roof framing connections.
    2. Exterior wall covering and wall connections to roof and floor diaphragms and framing.

    1705.13 Special inspections for seismic resistance. Special inspections for seismic resistance shall be required as specified in Sections 1705.13.1 through 1705.13.9, unless exempted by the exceptions of Section 1704.2.

    Exception: The special inspections specified in Sections 1705.13.1 through 1705.13.9 are not required for structures designed and constructed in accordance with one of the following:

    1. The structure consists of light-frame construction; the design spectral response acceleration at short periods, S DS, as determined in Section 1613.2.4, does not exceed 0.5; and the building height of the structure does not exceed 35 feet (10 668 mm).
    2. The seismic force-resisting system of the structure consists of reinforced masonry or reinforced concrete; the design spectral response acceleration at short periods, S DS, as determined in Section 1613.2.4, does not exceed 0.5; and the building height of the structure does not exceed 25 feet (7620 mm).
    3. The structure is a detached one- or two-family dwelling not exceeding two stories above grade plane and does not have any of the following horizontal or vertical irregularities in accordance with Section 12.3 of ASCE 7: 3.1. Torsional or extreme torsional irregularity. 3.2. Nonparallel systems irregularity. 3.3. Stiffness-soft story or stiffness-extreme soft story irregularity. 3.4. Discontinuity in lateral strength-weak story irregularity.

    1705.13.1 Structural steel. Special inspections for seismic resistance shall be in accordance with Section 1705.13.1.1 or 1705.13.1.2, as applicable.

    1705.13.1.1 Seismic force-resisting systems. Special inspections of structural steel in the seismic force-resisting systems in buildings and structures assigned to Seismic Design Category B, C, D, E or F shall be performed in accordance with the quality assurance requirements of AISC 341. [OSHPD 1R, 2 & 5] and this code.

  • CBC § 1704.5 High relevance — show source text

    At completion of fabrication, the approved fabricator shall submit a certificate of compliance to the owner or the owner’s authorized agent for submittal to the building official as specified in Section 1704.5 stating that the work was performed in accordance with the approved construction documents.

    1704.3 Statement of special inspections. Where special inspections or tests are required by Section 1705, the registered design professional in responsible charge shall prepare a statement of special inspections in accordance with Section 1704.3.1 for submittal by the applicant in accordance with Section 1704.2.3.

    Exception: The statement of special inspections is permitted to be prepared by a qualified person approved by the building official for construction not designed by a registered design professional.

    1704.3.1 Content of statement of special inspections. The statement of special inspections shall identify the following:

    1. The materials, systems, components and work required to have special inspections or tests by the building official or by the registered design professional responsible for each portion of the work.

    2. The type and extent of each special inspection.

    3. The type and extent of each test.

    4. Additional requirements for special inspections or tests for seismic or wind resistance as specified in Sections 1705.12, 1705.13 and 1705.14.

    5. For each type of special inspection, identification as to whether it will be continuous special inspection, periodic special inspection or performed in accordance with the notation used in the referenced standard where the inspections are defined.

    6. Deferred submittal items that require a supplemental statement of special inspections.

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    SPECIAL INSPECTIONS AND TESTS

    1704.3.2 Seismic requirements in the statement of special inspections. Where Section 1705.13 or 1705.14 specifies special inspections or tests for seismic resistance, the statement of special inspections shall identify the designated seismic systems and seismic force-resisting systems that are subject to the special inspections or tests. [OSHPD 1R, 2 & 5] Where Section 1705.13 or 1705.14 specifies special inspections or tests for seismic resistance, the statement of special inspections shall identify the equip- ment/components that require special seismic certification and seismic force-resisting systems that are subject to the special inspection or tests.

    1704.3.3 Wind requirements in the statement of special inspections. Where Section 1705.12 specifies special inspection for wind resistance, the statement of special inspections shall identify the main windforce-resisting systems and wind-resisting components that are subject to special inspections.

    1704.4 Contractor responsibility. Each contractor responsible for the construction of a main wind- or seismic force-resisting system, designated seismic system or a wind- or seismic force-resisting component listed in the statement of special inspections shall submit a written statement of responsibility to the building official and the owner or the owner’s authorized agent prior to the commencement of work on the system or component. The contractor’s statement of responsibility shall contain acknowledgement of awareness of the special requirements contained in the statement of special inspections.

  • CBC § 1705.10 High relevance — show source text

    1705.10 Structural integrity of deep foundation elements. Whenever there is a reasonable doubt as to the structural integrity of a deep foundation element, an engineering assessment shall be required. The engineering assessment shall include tests for defects performed in accordance with ASTM D4945, ASTM D5882, ASTM D6760 or ASTM D7949, or other approved method.

    1705.11 Fabricated items. Special inspections of fabricated items shall be performed in accordance with Section 1704.2.5.

    1705.12 Special inspections for wind resistance. Special inspections for wind resistance specified in Sections 1705.12.1 through 1705.12.3, unless exempted by the exceptions to Section 1704.2, are required for buildings and structures constructed in the following areas:

    1. In wind Exposure Category B, where basic wind speed, V, is 150 mph (67 m/sec) or greater.
    2. In wind Exposure Category C or D, where basic wind speed, V, is 140 mph (62.6 m/sec) or greater.

    1705.12.1 Structural wood. Continuous special inspection is required during field gluing operations of elements of the main windforce-resisting system. Periodic special inspection is required for nailing, bolting, anchoring and other fastening of elements of the main windforce-resisting system, including wood shear walls, wood diaphragms, drag struts, braces and hold-downs.

    Exception: Special inspections are not required for wood shear walls, shear panels and diaphragms, including nailing, bolting, anchoring and other fastening to other elements of the main windforce-resisting system, where the lateral resistance is provided by structural sheathing and the specified fastener spacing at panel edges is more than 4 inches (102 mm) on center.

    1705.12.2 Cold-formed steel light-frame construction. Periodic special inspection is required for welding operations of elements of the main windforce-resisting system. Periodic special inspection is required for screw attachment, bolting, anchoring and other fastening of elements of the main windforce-resisting system, including shear walls, braces, diaphragms, collectors (drag struts) and hold-downs.

    Exception: Special inspections are not required for cold-formed steel light-frame shear walls and diaphragms, including screwing, bolting, anchoring and other fastening to components of the windforce-resisting system, where either of the following applies:

    1. The sheathing is gypsum board or fiberboard.
    2. The sheathing is wood structural panel or steel sheets on only one side of the shear wall, shear panel or diaphragm assembly and the specified fastener spacing at the panel or sheet edges is more than 4 inches (102 mm) on center (o.c.).

    1705.12.3 Wind-resisting components. Periodic special inspection is required for fastening of the following systems and components:

    1. Roof covering, roof deck and roof framing connections.
    2. Exterior wall covering and wall connections to roof and floor diaphragms and framing.

    1705.13 Special inspections for seismic resistance. Special inspections for seismic resistance shall be required as specified in Sections 1705.13.1 through 1705.13.9, unless exempted by the exceptions of Section 1704.2.

    Exception: The special inspections specified in Sections 1705.13.1 through 1705.13.9 are not required for structures designed and constructed in accordance with one of the following: 1.

  • CBC § 1705.16 High relevance — show source text

    [BF] 1705.16 Intumescent fire-resistive materials. Special inspections and tests for intumescent fire-resistive materials applied to structural elements and decks shall be performed in accordance with AWCI 12-B. Special inspections and tests shall be based on the fire-resistance design as designated in the approved construction documents. Special inspections and tests shall be performed during construction. Additional visual inspection shall be performed after the rough installation and, where applicable, prior to the concealment of electrical, automatic sprinkler, mechanical and plumbing systems.

    [BF] 1705.17 Exterior insulation and finish systems (EIFS). Special inspections shall be required for all EIFS applications.

    Exceptions:

    1. Special inspections shall not be required for EIFS applications installed over a water-resistive barrier with a means of draining moisture to the exterior.
    2. Special inspections shall not be required for EIFS applications installed over masonry or concrete walls.

    [BF] 1705.17.1 Water-resistive barrier coating. A water-resistive barrier coating complying with ASTM E2570 requires special inspection of the water-resistive barrier coating where installed over a sheathing substrate.

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    SPECIAL INSPECTIONS AND TESTS

    [BF] 1705.18 Fire-resistant penetrations and joints. In high-rise buildings, in buildings assigned to Risk Category III or IV, or in fire areas containing Group R occupancies with an occupant load greater than 250, special inspections for through-penetrations, membrane penetration firestops, fire-resistant joint systems and perimeter fire containment systems that are tested and listed in accordance with Sections 714.4.1.2, 714.5.1.2, 715.3.1 and 715.4 shall be in accordance with Section 1705.18.1 or 1705.18.2.

    [OSHPD 1R, 2 & 5] Buildings assigned to all Risk Categories shall be subject to special inspections for fire-resistant penetrations and joints.

    [BF] 1705.18.1 Penetration firestops. Inspections of penetration firestop systems that are tested and listed in accordance with Sections 714.4.1.2 and 714.5.1.2 shall be conducted by an approved agency in accordance with ASTM E2174.

    [BF] 1705.18.2 Fire-resistant joint systems. Inspection of fire-resistant joint systems that are tested and listed in accordance with Sections 715.3.1 and 715.4 shall be conducted by an approved agency in accordance with ASTM E2393.

    [F] 1705.19 Testing for smoke control. Smoke control systems shall be tested by a special inspector.

    [F] 1705.19.1 Testing scope. The test scope shall be as follows:

    1. During erection of ductwork and prior to concealment for the purposes of leakage testing and recording of device location.

    2. Prior to occupancy and after sufficient completion for the purposes of pressure difference testing, flow measurements and detection and control verification.

    [F] 1705.19.2 Qualifications. Approved agencies for smoke control testing shall have expertise in fire protection engineering, mechanical engineering and certification as air balancers.

  • CBC § 1401.0 High relevance — show source text

    334 2025 CALIFORNIA MECHANICAL CODE

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    CHAPTER 14

    PROCESS PIPING

    1401.0 General.

    1401.1 Applicability. Except as otherwise addressed in this code, this chapter shall govern the installation of process piping in or in conjunction with a building or structure located upon the premises.

    1402.0 Permit.

    1402.1 General. It shall be unlawful to install, alter, or repair or cause to be installed, altered, or repaired process material piping without first obtaining a permit.

    Permits for process piping shall show the total number of outlets to be provided for on each system and such other information as required by the Authority Having Jurisdiction.

    Fees for process piping permits are included in Table 104.5.

    1403.0 Plans Required.

    1403.1 General. Plans, engineering calculations, diagrams, and other data shall be submitted in one or more sets with each application for a permit. The Authority Having Jurisdiction shall be permitted to require plans, computations, and specifications to be prepared and designed by a registered design professional.

    Where plans or other data are submitted for review, a plan review fee shall be paid, as provided in Section 104.3.2.

    1404.0 Workmanship.

    1404.1 General. Process piping shall not be strained or bent, nor shall tanks, vessels, vats, appliances, or cabinets be supported by or develop strain or stress on the piping.

    1405.0 Inspections.

    1405.1 General. Upon completion of the installation, alteration, or repair of process piping, and prior to the use thereof, the Authority Having Jurisdiction shall be notified that such piping is ready for inspection.

    Excavations required for the installation of underground piping shall be kept open until such time as the piping has been inspected and approved. Where such piping is covered or concealed before such approval, it shall be exposed upon the direction of the Authority Having Jurisdiction.

    1405.2 Required Inspections. The Authority Having Jurisdiction shall make the following inspections and shall either approve that portion of the work as completed or shall notify the permit holder wherein the same fails to be in accordance with this code.

    1405.2.1 Rough Piping Inspection. This inspection shall be made after process piping authorized by the permit has been installed and before piping has been cov

    ered or concealed. This inspection shall include a determination that the piping size, material, and installation are in accordance with the requirements of this code.

    1405.2.2 Final Piping Inspection. This inspection shall be made after piping authorized by the permit has been installed and after portions thereof that are to be covered or concealed are so concealed. This inspection shall include a pressure test, at which time the piping shall stand a pressure of not less than one-and-one-half times the maximum designed operating pressure where hydraulic testing is conducted or 110 percent where testing is conducted pneumatically. Test pressures shall be held for a length of time satisfactory to the Authority Having Jurisdiction, but in no case for less than 30 minutes with no perceptible drop in pressure. HPM drain, waste, and vent piping shall be tested in accordance with the plumbing code. Tests shall be made in the presence of the Authority Having Jurisdiction. Necessary apparatus for conducting tests shall be furnished by the permit holder.

  • CBC § 110.3.9 High relevance — show source text

    [A] 110.3.9 Energy efficiency inspections. Inspections shall be made to determine compliance with Chapter 13 and shall include, but not be limited to, inspections for: envelope insulation R- and U-values, fenestration U-value, duct system R-value, and HVAC and water-heating equipment efficiency.

    [A] 110.3.10 Other inspections. In addition to the inspections specified in Sections 110.3.1 through 110.3.9, the building official is authorized to make or require other inspections of any construction work to ascertain compliance with the provisions of this code and other laws that are enforced by the department of building safety.

    [A] 110.3.11 Special inspections. For special inspections, see Chapter 17.

    [A] 110.3.12 Final inspection. The final inspection shall be made after all work required by the building permit is completed.

    [A] 110.3.12.1 Flood hazard documentation. If located in a flood hazard area, documentation of the elevation of the lowest floor or the elevation of dry floodproofing, if applicable, as required in Section 1612.4 shall be submitted to the building official prior to the final inspection.

    110.3.12.2 [HCD 1] Operation and maintenance manual. At the time of final inspection, a manual, compact disc, web-based reference or other media acceptable to the enforcing agency shall be placed in the building in accordance with the California Green Building Standards Code (CALGreen), Chapter 4, Division 4.4.

    [A] 110.4 Inspection agencies. The building official is authorized to accept reports of approved inspection agencies, provided that such agencies satisfy the requirements as to qualifications and reliability.

    [A] 110.5 Inspection requests. It shall be the duty of the holder of the building permit or their duly authorized agent to notify the building official when work is ready for inspection. It shall be the duty of the permit holder to provide access to and means for inspections of such work that are required by this code.

    [A] 110.6 Approval required. Work shall not be done beyond the point indicated in each successive inspection without first obtaining the approval of the building official. The building official, upon notification, shall make the requested inspections and shall either indicate the portion of the construction that is satisfactory as completed, or notify the permit holder or the permit holder’s agent wherein the same fails to comply with this code. Any portions that do not comply shall be corrected and such portion shall not be covered or concealed until authorized by the building official.

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    ADMINISTRATION

    SECTION 111—CERTIFICATE OF OCCUPANCY

    [A] 111.1 Change of occupancy. A building or structure shall not be used or occupied in whole or in part, and a change of occupancy of a building or structure or portion thereof shall not be made, until the building official has issued a certificate of occupancy therefor as provided herein. Issuance of a certificate of occupancy shall not be construed as an approval of a violation of the provisions of this code or of other ordinances of the jurisdiction. Certificates presuming to give authority to violate or cancel the provisions of this code or other ordinances of the jurisdiction shall not be valid.

    Exception: Certificates of occupancy are not required for work exempt from permits in accordance with Section 105.2.

  • CBC § 105.0 High relevance — show source text

    (2) Refunding of not more than a percentage, as determined by this jurisdiction where no work has been done under a permit issued in accordance with this code.

    The Authority Having Jurisdiction shall not authorize refunding of a fee paid except upon written application filed by the original permittee not to exceed 180 days after the date of fee payment.

    105.0 Inspections and Testing. 105.1 General. Mechanical systems for which a permit is required by this code shall be inspected by the Authority Having Jurisdiction.

    No mechanical system or portion thereof shall be covered, concealed, or put into use until inspected and approved as prescribed in this code. Neither the Authority Having Jurisdiction nor the jurisdiction shall be liable for expense entailed in the removal or replacement of material required to permit inspection. Mechanical systems regulated by this code shall not be connected to the energy fuel supply lines until authorized by the Authority Having Jurisdiction.

    105.2 Required Inspections. New mechanical system work and such portions of existing systems as affected by new work, or changes, shall be inspected by the Authority Having Jurisdiction to ensure compliance with the requirements of this code and to ensure that the installation and construction of the mechanical system are in accordance with approved plans. The Authority Having Jurisdiction shall make the following inspections and other such inspections as necessary. The permittee or the permittee’s authorized agent shall be responsible for the scheduling of such inspections as follows:

    (1) Underground inspection shall be made after trenches or ditches are excavated and bedded, piping installed, and before backfill is put in place.

    (2) Rough-in inspection shall be made prior to the installation of wall or ceiling membranes.

    (3) Final inspection shall be made upon completion of the installation.

    105.2.1 Uncovering. Where a mechanical system, or part thereof, which is installed, altered, or repaired, is covered or concealed before being inspected, tested, and approved as prescribed in this code, it shall be uncovered for inspection after notice to uncover the work has been issued to the responsible person by the Authority Having Jurisdiction. The requirements of this section shall not be considered to prohibit the operation of mechanical systems installed to replace existing equipment serving

    24 2025 CALIFORNIA MECHANICAL CODE

    ), Copyright © 2025 IAPMO, and may not be used for any other purpose or distributed to any other persons or parties.

    DIVISION II SCOPE AND ADMINISTRATION

    an occupied portion of the building in the event a request for inspection of such equipment has been filed with the Authority Having Jurisdiction not more than 72 hours after such replacement work is completed, and before a portion of such mechanical system is concealed by a permanent portion of the building. 105.2.2 Other Inspections. In addition to the inspections required by this code, the Authority Having Jurisdiction shall be permitted to require other inspections to ascertain compliance with the provisions of this code and other laws that are enforced by the Authority Having Jurisdiction.

    105.2.3 Inspection Requests. It shall be the duty of the person doing the work authorized by a permit to notify the Authority Having Jurisdiction that such work is ready for inspection. The Authority Having Jurisdiction shall be permitted to require that a request for inspection be filed not less than 1 working day before such inspection is desired. Such request shall be permitted to be made in writing or by telephone, at the option of the Authority Having Jurisdiction.

    It shall be the duty of the person requesting inspections in accordance with this code to provide access to and means for inspection of such work.

  • CBC § 1705.13.7 Medium relevance — show source text
    TABLE 1705.13.7—REQUIRED INSPECTIONS OF STORAGE RACK SYSTEMS Col2 Col3 Col4 Col5
    TYPE CONTINUOUS
    INSPECTION    		 PERIODIC
    INSPECTION    		 REFERENCED
    STANDARD    		 IBC REFERENCE
    1. Materials used, to verify compliance with one or more of the
    material test reports in accordance with the approved
    construction documents.    		 — X — —
    2. Fabricated storage rack elements. — X — Section 1704.2.5
    3. Storage rack anchorage installation. — X ANSI/MH16.1
    Section 7.3.2    		 —
    4. Completed storage rack system, to indicate compliance with
    the approved construction documents.    		 — X — —

    1705.13.8 Seismic isolation systems. Periodic special inspection shall be provided for seismic isolation systems in seismically isolated structures assigned to Seismic Design Category B, C, D, E or F during the fabrication and installation of isolator units and energy dissipation devices.

    1705.13.9 Cold-formed steel special bolted moment frames. Periodic special inspection shall be provided for the installation of cold-formed steel special bolted moment frames in the seismic force-resisting systems of structures assigned to Seismic Design Category D, E or F.

    1705.14 Testing for seismic resistance. Testing for seismic resistance shall be required as specified in Sections 1705.14.1 through 1705.14.4, unless exempted from special inspections by the exceptions of Section 1704.2.

    1705.14.1 Structural steel. Nondestructive testing for seismic resistance shall be in accordance with Section 1705.14.1.1 or 1705.14.1.2, as applicable.

    1705.14.1.1 Seismic force-resisting systems. Nondestructive testing of structural steel in the seismic force-resisting systems in buildings and structures assigned to Seismic Design Category B, C, D, E or F shall be performed in accordance with the quality assurance requirements of AISC 341. [OSHPD 1R, 2 & 5] and this code.

    Exceptions: [OSHPD 1R, 2 & 5] Not permitted by OSHPD.

    1. In buildings and structures assigned to Seismic Design Category B or C, nondestructive testing is not required for structural steel seismic force-resisting systems where the response modification coefficient, R, designated for “Steel systems not specifically detailed for seismic resistance, excluding cantilever column systems” in ASCE 7, Table 12.2-1, has been used for design and detailing.
    2. In structures assigned to Seismic Design Category D, E, or F, nondestructive testing is not required for structural steel seismic force-resisting systems where design and detailing in accordance with AISC 360 is permitted by ASCE 7, Table 15.4-1.
  • CBC § 1-23 Medium relevance — show source text

    R108.6 Work commencing before permit issuance. Any person who commences work requiring a permit on a building, structure, electrical, gas, mechanical or plumbing system before obtaining the necessary permits shall be subject to a fee established by the applicable governing authority that shall be in addition to the required permit fees.

    SECTION R109—INSPECTIONS

    R109.1 Types of inspections. For on-site construction, from time to time the building official, upon notification from the permit holder or his agent, shall make or cause to be made any necessary inspections and shall either approve that portion of the construction as completed or shall notify the permit holder or his or her agent wherein the same fails to comply with this code. The enforcing

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    DIVISION II SCOPE AND ADMINISTRATION

    agency upon notification of the permit holder or their agent shall within a reasonable time make the inspections set forth in Sections R109.1.1, R109.1.1.1, R109.1.3, R109.1.4, R109.1.4.1, R109.1.4.2, R109.1.5, R109.1.5.1, R109.1.5.2, R109.1.5.3, R109.1.6, R109.1.6.1 and

    R109.1.6.2.

    Note: Reinforcing steel or structural framework of any part of any building or structure shall not be covered or concealed without first obtaining the approval of the enforcing agency.

    R109.1.1 Foundation inspection. Inspection of the foundation and footings shall be made after poles or piers are set or trenches or basement areas are excavated and any required forms erected and any required reinforcing steel is in place and supported prior to the placing of concrete. The foundation or footings inspection shall include excavations for thickened slabs intended for the support of bearing walls, partitions, structural supports, or equipment and special requirements for wood foundations. Mate- rials for the foundation shall be on the job site except where concrete is ready-mixed in accordance with ASTM C94. Under this circumstance, concrete is not required to be at the job site.

    R109.1.1.1 Concrete slab and under-floor inspection. Concrete slab and under-floor inspections shall be made after in-slab or under-floor reinforcing steel and building service equipment, conduits, piping or other ancillary building trade products or equip- ment are installed, but before any concrete is placed or floor sheathing is installed, including the subfloor.

    R109.1.2 Plumbing, mechanical, gas and electrical systems inspection. Rough inspection of plumbing, mechanical, gas and electrical systems shall be made prior to covering or concealment, before fixtures or appliances are set or installed, and prior to framing inspection.

    Exception: Backfilling of ground-source heat pump loop systems tested in accordance with the California Mechanical Code prior to inspection shall be permitted.

    R109.1.3 Floodplain inspections. For construction in flood hazard areas as established by Table R301.2, upon placement of the lowest floor, including basement, and prior to further vertical construction, the building official shall require submission of documentation, prepared and sealed by a registered design professional, of the elevation of the lowest floor, including basement, required in Section R306.

Frequently asked questions

Do I have to wait for an inspector before covering work?

Yes. The CBC requires that work not be covered beyond the point indicated in each successive inspection without the building official’s approval (§ 110.6) .

Who must call for inspections?

The holder of the building permit or their duly authorized agent must notify the building official when work is ready for inspection (§ 110.5) .

Are special inspections the same as routine inspections?

No. Special inspections are required for specific materials/systems listed in Chapter 17; they have separate qualification, reporting and submittal requirements (statement of special inspections, approved agencies, continuous vs. periodic) and are required in addition to the routine inspections in § 110.3 (§ 110.3.11; Chapters 1704–1705) .

Does the CBC specify how much advance notice I must give?

The CBC requires notification to the building official but does not set a statewide minimum lead time in §§ 110.3–110.6; many local departments or trade codes establish advance notice rules (commonly 24 hours or 1 working day) and reinspection fee policies — check your AHJ’s rules and relevant trade code sections (§ 110.5; see Mechanical/Plumbing Code examples) .

What happens if my special inspector finds nonconforming work?

Special inspection reports must document discrepancies and require correction; unresolved discrepancies must be reported to the building official and the registered design professional prior to completion of that phase, and a final report documenting corrections must be submitted as required by Chapter 17 (§ 1704.2.4) .

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