Title 24 · California Energy Code
Which certificates are used for field verification, installation, and verification records?
If a building’s compliance depends on equipment or assemblies performing above code minimums, field tests must be done and the installer and tester must record the installation and test results on the Certificate of Installation (§ 10‑103(a)3) and the Certificate of Verification (§ 10‑103(a)5), as required by § 150.1(b)2.
Last reviewed: July 6, 2026
What the code requires — plain English
The California Energy Code requires that when the building’s compliance depends on installed features performing above minimums, those features must be field verified and the results recorded on the appropriate certificates. Specifically, the results must be documented on the Certificate of Installation required by § 10‑103(a)3 and on the Certificate of Verification required by § 10‑103(a)5, as called out in § 150.1(b)2.
Field verification results for performance-based compliance must be recorded on the applicable Certificate of Installation (§ 10‑103(a)3) and Certificate of Verification (§ 10‑103(a)5), per § 150.1(b)2.
Requirements in detail
Summary of the three key documents and when each is used:
- Certificate of Installation (§ 10‑103(a)3) — documents that a product or system was installed as required. Required to record the installation parameters that affect compliance when field verification is required.
- Certificate of Verification (§ 10‑103(a)5) — documents the results of field verification activities (tests, measured performance, or inspections) needed to confirm installed performance.
- The duty to use those certificates for field verification results is triggered by § 150.1(b)2 whenever performance compliance relies on installed features performing above prescriptive minimums (examples listed in the section).
Which installations trigger certificate use (decision table)
| Certificate | Purpose / When used | Typical who signs / completes | Decision‑relevant values / tests | Code Reference |
|---|---|---|---|---|
| Certificate of Installation | Record that an equipment or system was installed per plans/specs when installed performance affects compliance | Installer or contractor; signature required per local enforcement | Installed model, serial, rating (e.g., EER2/SEER2/HSPF2), installed capacities | § 10‑103(a)3; see § 150.1(b)2 for trigger |
| Certificate of Verification | Record results of field verification tests and measurements (airflow, leakage, rated capacity, etc.) | Qualified verifier or testing technician; test values and pass/fail | Test procedure per referenced appendices (e.g., RA3.4, RA3.1.4.3.9), measured values vs. required thresholds | § 10‑103(a)5; triggers listed in § 150.1(b)2 |
| (Related) Certificate of Compliance | Demonstrates design compliance at permit stage (not the field record) | Design applicant | Software outputs, modeled energy budget | § 150.1(b)2A and Sections 10‑103(a)1/2 (context for performance approach) |
Notes on decision values: EER2/SEER2/CEER/HSPF2 ratings, building enclosure leakage, heat pump rated heating capacity at specific temperatures, whole‑house fan airflow/efficacy, and similar items listed in § 150.1(b)2 are explicit triggers for the field verification + certificate requirement. The code refers the verifier to the specific Reference Residential Appendices (for example, RA3.4 and RA3.1.4.3.9) for test procedures.
What to include on each certificate (high‑level)
- Certificate of Installation (§ 10‑103(a)3): identification of equipment, installed model/ratings, location, installer name/license, installation date, and statement that installation follows the design used for compliance.
- Certificate of Verification (§ 10‑103(a)5): description of tests performed, measured values, test method reference (e.g., RA appendix used), verifier name/qualification, date, and pass/fail or measured delta versus required value.
Exceptions & special cases
- Multiple‑orientation exception: A permit applicant may demonstrate compliance for any orientation of the same building model if the documentation shows the design would comply in each of the four cardinal orientations. This exception affects how the Certificate of Compliance is prepared, and therefore may affect what field verification is necessary; see § 150.1(b)2A.
- The code lists specific technologies and performance items (VCHP option, low‑leakage air handlers, whole‑house fans, etc.) that require field verification; the referenced test methods are in the Residential Reference Appendices (e.g., RA3.4, RA3.1.4.3.9). If a technology is not listed, the code text returned does not establish a certificate requirement — consult the cited appendices or local enforcement agency for clarity.
If a particular device or test procedure is not covered in the returned materials, that absence means the uploaded code excerpts did not include further detail for that device — do not rely on this article for items not cited here without checking the complete code or reference appendices.
Common mistakes
- Confusing the Certificate of Compliance (permit-stage design) with the on-site Certificate of Installation (§ 10‑103(a)3) and Certificate of Verification (§ 10‑103(a)5) — the latter two record actual installation and field test results required by § 150.1(b)2.
- Omitting the referenced test method on the Certificate of Verification (e.g., failing to note RA3.4 for SEER2 verification). The code requires field verification be performed “in accordance with the procedures specified in” the referenced appendices; the certificate should identify the procedure used.
- Using the wrong certificate type to record outcomes (e.g., writing an installation note on the Certificate of Compliance rather than the Certificate of Installation or Verification). Follow § 10‑103(a)3 and § 10‑103(a)5 for where results must be documented.
Worked example — concrete scenario
Scenario: A single‑family house uses the performance compliance approach. The standard design requires a SEER2 = 14 air‑conditioner per Table 150.1‑A, but the proposed design and compliance software rely on installing units rated SEER2 = 16 to meet the building’s energy budget.
- Because the building’s compliance depends on installed equipment performing above the minimum, § 150.1(b)2 requires field verification of the installed space‑conditioning system’s rating and installation per the procedures in the referenced appendix (RA3.4).
- The installer completes a Certificate of Installation (§ 10‑103(a)3) documenting the installed model, serial number, and declared SEER2 = 16, and signs it. This records that the installed equipment matches the equipment used in the compliance model.
- A qualified verifier performs the RA3.4 field verification tests (as required by § 150.1(b)2.i) and records measured values (e.g., operating conditions, airflow if required, and confirmation of rated performance) on the Certificate of Verification (§ 10‑103(a)5), citing RA3.4 as the test method. The verifier signs and dates the certificate.
- The local enforcement agency receives these certificates as part of final compliance documentation; they confirm the installed SEER2 = 16 units were installed and verified per the code‑referenced procedures. If the measured results show the equipment does not meet the modeled performance, corrective action is required to reach compliance.
Numbers used: standard design SEER2 = 14; installed/model SEER2 = 16 — field verification and both certificates are required under § 150.1(b)2, recorded on § 10‑103(a)3 and § 10‑103(a)5 forms.
Related provisions
- § 10‑103(a)3 — Certificate of Installation (installation record).
- § 10‑103(a)5 — Certificate of Verification (field test / verification record).
- § 150.1(b)2 — Field verification requirements that trigger the need for the certificates (lists specific items and points to RA test procedures).
- Reference Residential Appendix RA3.4 — field verification procedures for rated equipment (referenced by § 150.1(b)2).
- Reference Residential Appendix RA3.1.4.3.9 — field verification for low‑leakage air handlers (referenced by § 150.1(b)2).
Code references
Grounded in the retrieved California Energy Code — click a citation to read the verbatim passage:
§ 10-103 High relevance — show source text
- Compliance demonstration requirements for performance standards. A. Certificate of compliance and application for a building permit. The application for a building permit shall include documentation pursuant to Sections 10-103(a)1 and 10-103(a)2 which demonstrates, using an approved calculation method, that the building has been designed so that its energy consumption does not exceed the standard design energy budgets for the applicable climate zone. Exception to Section 150.1(b)2A Multiple orientation: A permit applicant may demonstrate compliance with the energy budget requirements of Section 150.1(a) and (b) for any orientation of the same building model if the documentation demonstrates that the building model with its proposed designs and features would comply in each of the four cardinal orientations.
B. Field verification. When performance of installed features, materials, components, manufactured devices or systems above the minimum specified in Section 150.1(c) is necessary for the building to comply with Section 150.1(b), or is necessary to achieve a more stringent local ordinance, field verification shall be performed in accordance with the applicable requirements in the following subsections, and the results of the verification(s) shall be documented on applicable certificates of installation pursuant to Section 10-103(a)3 and applicable certificates of verification pursuant to Section 10-103(a)5. i. EER2/SEER2/CEER/HSPF2 Rating. When performance compliance requires installation of a space-conditioning system with a rating that is greater than the minimum rating required by Table 150.1-A or specified for the standard design, the installed system shall be field verified in accordance with the procedures specified in the applicable sections of Reference Residential Appendix RA3.4. ii. Variable capacity heat pump (VCHP) compliance option. When performance compliance requires installation of a heat pump system that meets all the requirements of the VCHP compliance option specified in the ACM
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Reference Manual, the system shall be field verified in accordance with the procedures in Reference Residential Appendix RA3.4.4.3. iii. Low leakage air handler. When performance compliance requires installation of a low leakage air-handling unit, the installed air-handling unit shall be field verified in accordance with the procedures specified in Reference Residential Appendix RA3.1.4.3.9.
iv. Reserved.
v. Heat pump — rated heating capacity. When performance compliance requires installation of a heat pump system, the heating capacity values at 47°F and 17°F shall be field verified in accordance with the procedures specified in Reference Residential Appendix RA3.4. vi. Whole-house fan. When performance compliance requires installation of a whole-house fan, the whole-house fan ventilation airflow rate and fan efficacy shall be field verified in accordance with the procedures in Reference Residential Appendix RA3.9. vii. Central fan ventilation cooling system. When performance compliance requires installation of a central fan ventilation cooling system, the installed system shall be field verified in accordance with the procedures in Reference Residential Appendix RA3.3.4. viii. Building enclosure air leakage. When performance compliance requires a building enclosure leakage rate that is lower than the standard design, the building enclosure shall be field verified in accordance with the procedures specified in Reference Residential Appendix RA3.8. ix. **Quality Insulation Installation (QII).
§ 170.1 High relevance — show source text
A. The Efficiency LSC energy is the sum of the LSC energy for space-conditioning, water heating, mechanical ventilation, lighting and the self-utilization credit. B. The Total LSC energy is the sum of the Efficiency LSC energy and LSC energy from the photovoltaic system, battery energy storage systems (BESS), and demand flexibility. 2. Source energy. The source energy budget is determined by applying the mandatory and prescriptive requirements of the standard design, except with a consumer gas or propane water heater, to the proposed design building.
Exception to Section 170.1(a): A community shared solar electric generation system, or other renewable electric generation system, and/or community shared BESS, that provides dedicated power, utility energy reduction credits or payments for energy bill reductions to the permitted building and is approved by the Energy Commission as specified in Title 24, Part 1, Section 10-115, may offset part or all of the solar electric generation system or BESS LSC energy required to comply with the standards, as calculated according to methods established by the Commission in the Nonresidential ACM Reference Manual.
(b) Compliance demonstration requirements for performance standards.
- Certificate of Compliance and Application for a Building Permit. The application for a building permit shall include documentation pursuant to Sections 10-103(a)1 and 10-103(a)2 that demonstrates, using an approved calculation method, that the building has been designed so that its source energy and LSC energy consumption do not exceed the standard design energy budgets for the applicable climate zone.
- Field verification of individual dwelling unit systems. When performance of installed features, materials, components, manufactured devices or systems above the minimum specified in Section 170.2 is necessary for the building to comply with Section 170.1, or is necessary to achieve a more stringent local ordinance, field verification shall be performed in accordance with the applicable requirements in the following subsections, and the results of the verification(s) shall be documented on applicable Certificates of Installation pursuant to Section 10-103(a)3 and applicable Certificates of Verification pursuant to Section 10-103(a)5. A. EER2/SEER2/CEER/HSPF2 Rating. When performance compliance requires installation of a space-conditioning system with a rating that is greater than the minimum rating required by Table 170.2-K or specified for the standard
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design, the installed system shall be field verified in accordance with the procedures specified in the applicable sections of Reference Residential Appendix RA3. B. Variable capacity heat pump (VCHP) compliance option. When performance compliance requires installation of a heat pump system that meets all the requirements of the VCHP compliance option specified in the ACM Reference Manual, the system shall be field verified in accordance with the procedures in Reference Residential Appendix RA3.4.4.3.
C. Low leakage air handler. When performance compliance requires installation of a low leakage air-handling unit, the installed air handling unit shall be field verified in accordance with the procedures specified in Reference Residential Appendix RA3.1.4.3.9. D. Thermal balancing valve. When performance compliance requires installation of thermal balancing valves with variable speed circulation pump(s), the installation shall meet the procedures specified in Reference Residential Appendix RA4.4.3. E. Heat pump—rated heating capacity.
§ 10-109 High relevance — show source text
(b) Performance approach. A building complies with the performance approach if the energy consumption calculated for the proposed design building is no greater than the energy budget calculated for the standard design building using Commission-certified compliance software as specified by Sections 10-109(c) and 10-116.
- Energy budget. The energy budget is expressed in terms of source energy and long-term system cost (LSC). A. Long-term system cost (LSC). The LSC energy budget is determined by applying the mandatory and prescriptive requirements of the standard design to the proposed design building and has two components, the Efficiency LSC and the Total LSC.
i. The Efficiency LSC energy is the sum of the LSC energy for space-conditioning, water heating, mechanical ventilation, and the self-utilization credit.
ii. The Total LSC energy is the sum of the Efficiency LSC energy and LSC energy from the photovoltaic system, battery energy storage systems (BESS), lighting, demand flexibility, and other plug loads. B. Source energy. The source energy budget is determined by applying the mandatory and prescriptive requirements of the standard design to the proposed design building. The source energy is the total annual source energy. Exception to Section 150.1(b)1. A community shared solar electric generation system, or other renewable electric generation system, or community shared BESS, which provides dedicated power, utility energy reduction credits, or payments for energy bill reductions to the permitted building and is approved by the Energy Commission as specified in Title 24, Part 1, Section 10-115, may offset part or all of the solar electric generation system and demand flexibility Energy Design Rating required to comply with the Standards, as calculated according to methods established by the Commission in the Residential ACM Reference Manual.
- Compliance demonstration requirements for performance standards. A. Certificate of compliance and application for a building permit. The application for a building permit shall include documentation pursuant to Sections 10-103(a)1 and 10-103(a)2 which demonstrates, using an approved calculation method, that the building has been designed so that its energy consumption does not exceed the standard design energy budgets for the applicable climate zone. Exception to Section 150.1(b)2A Multiple orientation: A permit applicant may demonstrate compliance with the energy budget requirements of Section 150.1(a) and (b) for any orientation of the same building model if the documentation demonstrates that the building model with its proposed designs and features would comply in each of the four cardinal orientations.
B. Field verification. When performance of installed features, materials, components, manufactured devices or systems above the minimum specified in Section 150.1(c) is necessary for the building to comply with Section 150.1(b), or is necessary to achieve a more stringent local ordinance, field verification shall be performed in accordance with the applicable requirements in the following subsections, and the results of the verification(s) shall be documented on applicable certificates of installation pursuant to Section 10-103(a)3 and applicable certificates of verification pursuant to Section 10-103(a)5. i. EER2/SEER2/CEER/HSPF2 Rating. When performance compliance requires installation of a space-conditioning system with a rating that is greater than the minimum rating required by Table 150.1-A or specified for the standard design, the installed system shall be field verified in accordance with the procedures specified in the applicable sections of Reference Residential Appendix RA3.4. ii. **Variable capacity heat pump (VCHP) compliance option.
§ 170.2 High relevance — show source text
170.2(a)3A, 170.2(b)4 Window area 110.6(a)1, 140.3(a)5A, Equation 140.3-B, Equation 170.2-B Window film Table 110.6-A, Table 110.6-B, 141.0(b)3A, Table 141.0-E, Table 141.0-D Window operation 150.0(o)1A, 160.2(b)2A Window wall ratio Equation 140.3-b, 140.3(d)3B, Equation 170.2-B Fiberglass Ducts 120.4(b)1B, 150.0(m)2B, 160.3(c)2C Field Inspection 110.9(c)1A Field Verification 10-103(a)1B-C, 10103(a)2A, 10-103(a)3C-D, 10-103(a)5, 10-109(a-b), 10-109(j), 110.1(c)2, 141.0(b)2D, 141.0(b)2E, 150.0(m)1B, 150.0(m)13, 150.0(o)1C, 150.0(o)2, 150.1(b)3B, 150.1(c)7A, 150.1(c)9B, 150.1(c)10, 150.2(b)1D, 150.2(b)1E, 150.2(b)1F, 150.2(b)1M, 160.2(a)1, 160.2(b)2A, 160.2(b)2B-C, 160.3(b)5A, 160.3(b)K-L, 160.3(c)2H, 170.1(d), 170.2(c)3B, 180.1(a)2, 180.1(b)3, 180.3(b)2A, 180.3(b)2B, 180.3(b)2B, 180.3(b)5 Field-Fabricated (Ducts) 120.4(b)2A, 150.0(m)3A, 160.3(b)5C, 160.3(c)2C Filter Drier 150.0(h)3B, 160.3(b)3B Filtration Flow 150.0(p)1 Filtration Pump 150.0(p)1 Fire Door 110.6(b) Fire Protection 150.1(c)5, 170.2(a)4 Fire Station 130.0(b)3, Table 140.7-B Fireplace 110.2(c), 110.5(e), 150.0(e), 150.0(m), 160.1(f), 160.3(b)5A Firing Rates 120.6(d)3, 120.9(c), 160.4(e)3 Fixed Enthalpy Table 140.4-G, 140.4(e)2D, Table 170.2-G, 170.2(c)4C Fixed Vents 120.4(a)3, 120.7(a)3B, 160.1(a)2C, 160.3(c)2B, 160.3(c)2H, 180.
§ 110.2 High relevance — show source text
B Ceiling-Mounted Air Conditioners and Condensing Units Serving Computer Rooms–Minimum Efficiency Requirements Table 110.2-M Cellular Foam Insulation 120.4(F), 150.0(M)9,160.3(b)5I, 160.3(c)2G Cement-Based Roof Coatings 110.8(i)4 Central Boiler 140.4(a), 170.2(c)3A Chiller 140.4(a)2 Forced-air 150.0(h)4, 150.0(m)13, 150.0(o), 150.1(c)10, 160.2(b)2A, 160.3(b)4, 160.3(b)5, 170.2(c)3B Furnace 110.5, 110.5(a) Water heating system 110.10(c), 150.1(c)8, 170.2(d)3 Centrifugal Fan Table 110.2-F, 140.4(h), 170.2(C)4F Centrifugal Water Chilling 110.2(a) Certificate of Acceptance 10-103(a)4, 10-103(b)1B, 10-103.1(c)3, 110.6(a)6, 120.5(a), 120.5(b), 120.6(a)7, 120.6(b)6, 120.6(c)8, 120.6(e)6, 120.6(f), 120.6(g), 120.6(i), 130.4(a), 130.4(c),
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INDEX
140.9(b)3, 140.9(c), 160.3(d)1, 160.3(d)2, 160.3(d)3, 160.5(e)1, 3 Compliance 10-103(a), 120.8(d), 150.1(b)3, 170.1(d) Installation 10-103(a)3, 150.1(b)3, 150.1(c)7, 150.2(b)1F Verification 10-103(a)5, 150.1(b)3 Certification 110.0(B), 110.2, 110.3(A), 110.4(a), 110.6(a), 110.8(a), 110.8(g), 110.9(c), 110,11, 120.5(b), 130.4(b), 130.4(c), 140.9(a)4, 150.0(n)3, 160.3(d)3, 160.4(c), 160.5(e) Certification Identification Number 10-103(C)3G, 120.5(B), 130.4(c), 160.3(d)3, 160.5(e) Certification Requirements 110.0(B), 110.6(a)1, 110.8(g)1 Certified 110.6(a)6, 110.8(i)1, 120.5(a) Equipment 110.4(a)1, 150.0(h), 150.0(p)1A Lighting Controls Acceptance Test Employer 130.4(c), 160.
§ 140.9 High relevance — show source text
INDEX
140.9(b)3, 140.9(c), 160.3(d)1, 160.3(d)2, 160.3(d)3, 160.5(e)1, 3 Compliance 10-103(a), 120.8(d), 150.1(b)3, 170.1(d) Installation 10-103(a)3, 150.1(b)3, 150.1(c)7, 150.2(b)1F Verification 10-103(a)5, 150.1(b)3 Certification 110.0(B), 110.2, 110.3(A), 110.4(a), 110.6(a), 110.8(a), 110.8(g), 110.9(c), 110,11, 120.5(b), 130.4(b), 130.4(c), 140.9(a)4, 150.0(n)3, 160.3(d)3, 160.4(c), 160.5(e) Certification Identification Number 10-103(C)3G, 120.5(B), 130.4(c), 160.3(d)3, 160.5(e) Certification Requirements 110.0(B), 110.6(a)1, 110.8(g)1 Certified 110.6(a)6, 110.8(i)1, 120.5(a) Equipment 110.4(a)1, 150.0(h), 150.0(p)1A Lighting Controls Acceptance Test Employer 130.4(c), 160.5(e) Mechanical Acceptance Test Employer 120.5(b), 160.3(d)3 Mechanical Acceptance Test Technician (CMATT) 120.5(b), 160.3(d)3 CFA and Dwelling Unit Adjustment Factors Table 150.1-C, Table 170.2-T CFM Per Square Foot 110.6(A)1, 120.1(D)3, 120.6(c)5, 140.3(a)9, 140.4(e)1, 141.0(b)2Q, 150.1(c)12A, Table 160.2-B, Table 160.2-C, 170.2(c)4N CFM Per Ton 150.0(M)13, 150.1(C)7, 150.2(B)1F, 160.3(b)5L, 170.2(c)3B, 180.2(b)2A Chalk Board 140.6(b)4 Chilled Water piping 120.3(b)2, 160.3(c)1C, 160.4(f)2B Water plant Table 120.2-A, 140.4(h)5, 140.4(j), Table 160.3-C, 170.2(c)4F Water system 120.6(h), 140.4(k)2, 140.4(m), 170.2(c)4C, I, K Water system cooling capacity Table 140.4-E, Table 170.2-E-2 Chiller 10-103(c)3B, 110.2(a), Table 120.2-A, 120.5(a)8, 16, 120.6(b)2A, Table 130.5-B, 140.
§ 160.2 High relevance — show source text
160.2(b)2A, 160.2(b)2B,160.3(b)5L, 170.1(d)2F, 170.1(d)3B, Table 170.2-K Energy index (FEI) 120.10(a) Fan-coil motor 140.4(c)3
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Vertical fenestration 140.3(d)2, 140.3(d)3, Table 140.3-E, Equation 140.3-C, Table 140.6-A, 141.0(b)2A, Table 141.0-A, 150.2(b)1A, 150.2(b)1B, 150.3(a)5D, 170.2(a)3A, Equation 170.2-A, Table 170.2-L, 180.2(b)1C Vertical glazing 130.1(d)5, 140.3(a)5C, 160.5(b)4D, 170.2(a)3A Vertical window 140.3(a)3, 140.3(a)5, 170.2(a)2B, 170.2(a)3A Visible reflectance 140.3(d)2E, 140.3(d)3F Visible Transmittance (VT) 10-111, 110.6(a)4, Table 110.6-A, Table 110.6-B, 140.3(a)5D, Equation 140.3B, 140.3(c)4, 140.3(d)2F, 170.2(a)3A, 170.2(b)4 Window area 110.6(a)1, 140.3(a)5A, Equation 140.3-B, Equation 170.2-B Window film Table 110.6-A, Table 110.6-B, 141.0(b)3A, Table 141.0-E, Table 141.0-D Window operation 150.0(o)1A, 160.2(b)2A Window wall ratio Equation 140.3-b, 140.3(d)3B, Equation 170.2-B Fiberglass Ducts 120.4(b)1B, 150.0(m)2B, 160.3(c)2C Field Inspection 110.9(c)1A Field Verification 10-103(a)1B-C, 10103(a)2A, 10-103(a)3C-D, 10-103(a)5, 10-109(a-b), 10-109(j), 110.1(c)2, 141.0(b)2D, 141.0(b)2E, 150.0(m)1B, 150.0(m)13, 150.0(o)1C, 150.0(o)2, 150.1(b)3B, 150.1(c)7A, 150.1(c)9B, 150.1(c)10, 150.2(b)1D, 150.2(b)1E, 150.2(b)1F, 150.2(b)1M, 160.2(a)1, 160.2(b)2A, 160.2(b)2B-C, 160.
§ 140.4 High relevance — show source text
5(a)14, 140.4(i), 140.4(j), 160.3(d)1 Envelope 150.0(m)1, 160.2(c)1, 160.3(b)5 Performance 110.8(a), 120.4(e), 150.0(m)6, 160.3(b), 160.3(c) Resistance 141.0(b)2B, 150.0(a), 150.0(c), 150.2(a)1D, 150.2(b)1H, 160.1(a), 180.2(b) Thermostat 110.10(b)1A, 110.10(b)1B, 110.12(a), 110.2(b), 110.2(c), 120.2(a), 120.2(b), 120.2(c), 120.2(e), 120.2(i), 141.0(b)2E, 150.0(i), 150.1(c)7, 150.2(b)1F, 160.3(a)1 Thermostatic Controls 120.2(a), 120.2(b), 120.6(a)2, 140.4(n), 160.3(a)2 Thickness 120.3(c) Third Party Verification 141.0(b)3, 150.2(b)2 Three Habitable Stories or Less 110.8(d)1, 110.10(a), 110.10(b), 160.2(a), 170.2(a)5, 170.2(a)6, Table 170.2-A, 170.2(f), 170.2(g), 170.2(h), 180.1(a), 180.1(b) Time Dependent Valuation (TDV) Energy 140.1(a), 140.1(b), 140.1(c), 140.4(e)1, 140.4(a), 141.0(a)2, 150.1(b)1, 150.1(b)2, 150.2(a)2B, 170.1(a), 170.1(b), 170.1(c), 170.1(d), 180.1(b) Timed Override 120.6(b)3, 140.9(b) Times Of Occupancy 120.1(d), 160.2(c)5 Title 24, Part 1 10-103(c), 110.1(c), 120.1(a), 120.5(b), 120.8, 130.4(c), 140.7(a), 160.2(a), 160.3(d), 160.5(e), 170.2(e) Title 24, Part 11 110.10(b), 120.8, 130.2(b), 160.5(c) Title 24, Part 9 110.10(b)1 Total Airflow (Compressed Air System) 120.6(e) Total Capacity (Electric Resistance Heating) 140.4(g) Total Heat of Rejection 120.6(a)4, 120.6(a)8, 120.6(b)4, 120.6(b)5 Tower Flow Turndown 140.4(h), 170.2(c)4F Transcritical CO2 Fan-Powered Gas Coolers Minimum Efficiency Requirements 120.6(a), Table 120.6-C, Table 120.6-E,
§ 170.2 High relevance — show source text
Table 170.2-V Humidification 120.6(j)2, 140.4(b)2, 140.4(e)1, 170.2(c)2B, 170.2(c)4C Humidity 120.6(a)3B, 170.2(c)4D Humidity Conditions 140.4(b)2, 170.2(c)2B Humidity Level 140.4(d), Table 140.4-G, 140.4(e)2D, 140.4(f), 170.2(c)4B, Table 170.2-G, 170.2(c)4C HVAC Controls 110.12(b) HVAC Motor 140.4(c)3 HVAC Technician 120.2(i)6B, 160.3(a)2H Hydrofluorocarbon 120.6(b)4B Hydronic Heat Pump 140.4(k)5, 140.4(k)7, 170.2(c)4I System 10-103.2(b)1B, 10-103.1(c)3B, 120.5(a)9, 140.4(k), 160.3(d)1G, 160.3(d)1I, 170.2(c)4I System Variable Flow Controls 120.5(a)7 Variable Flow 140.4(k)1, 170.2(c)4I
I
IAPMO R&T 150.0(n)3, 160.4(c) Identification Label 140.3(a)8C
2025 CALIFORNIA ENERGY CODE 309
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
INDEX
70.2(a)1C, 170.2(a)6, 170.2(d)2, 170.2(d)3C, Table 170.2-L, 170.2(e)6A, 180.1(a)1B Installation Location 150.0(m)12B, 160.2(b)1B Installed Thickness 120.4(c-e), 150.0(m)4-6, 160.3(b)5D-F, 160.3(c)2D-F, 180.2(b)1A Installed Watts 140.6(a)2, 140.6(c)3H, 170.2(e)2B Installer 10-103, 10-103.2(b)2, 10-115(a)4D, 140.6(a)2I, 150.0(o)1G, 150.1(c)7A, 150.2(b)1F, 160.2(b)2A, 160.3(b)5K, 160.3(b)5L, 170.2(c)3B, 170.2(e)2B, 180.2(b)2A Instantaneous KW Demand 130.5(a), 160.6(a) Instantaneous Water Heater 110.3(c)6, 150.0(n)4, 150.1(c)8, 150.2(a)1D, 160.4(d), 170.2(d)1C Instructions 10-103(b)2, 10-103(b)4, 10-103.
§ 0.53 High relevance — show source text
5-inch
orifice)|14 psi
(0.53-inch
orifice)|Not Applicable| |TABLE 5704.3.6.3(5)—AUTOMATIC SPRINKLER PROTECTION REQUIREMENTS FOR RACK STORAGE OF LIQUIDS IN
METAL CONTAINERS OF 5-GALLON CAPACITY OR LESS WITH OR WITHOUT CARTONS ON CONVENTIONAL WOOD PALLETSa|IN-RACK SPRINKLER ARRANGEMENT AND DEMAND|Racks more than 9
feet to 12 feet deep|Racks more than 9
feet to 12 feet deep|1.
Ordinary
temperature,
quick-response
sprinklers,
maximum 8 feet 3
inches horizontal
spacing
2.
One line sprinklers
above each level of
storage
3. Locate in
transverse flue
spaces, staggered
vertical and within
20 inches of aisle
4.
Shields required
where multiple-
level|1.
Ordinary
temperature,
quick-response
sprinklers,
maximum 8 feet 3
inches horizontal
spacing
2.
See 2 above
3.
See 3 above
4.
See 4 above|Not Applicable| |TABLE 5704.3.6.3(5)—AUTOMATIC SPRINKLER PROTECTION REQUIREMENTS FOR RACK STORAGE OF LIQUIDS IN
METAL CONTAINERS OF 5-GALLON CAPACITY OR LESS WITH OR WITHOUT CARTONS ON CONVENTIONAL WOOD PALLETSa|IN-RACK SPRINKLER ARRANGEMENT AND DEMAND|Racks up
to 9 feet deep|Racks up
to 9 feet deep|1.
Ordinary
temperature,
quick-response
sprinklers,
maximum 8
feet 3 inches
horizontal
spacing
2.
One line
sprinklers
above each
level of storage
3.
Locate in
longitudinal
flue space,
staggered
vertical
4.
Shields
required where
multiple-level|1.
Ordinary
temperature,
quick-response
sprinklers,
maximum 8
feet 3 inches
horizontal
spacing
2.
See 2 above
3.
See 3 above
4.
See 4 above|Not Applicable
None for maximum
6-foot-deep racks| |TABLE 5704.3.6.3(5)—AUTOMATIC SPRINKLER PROTECTION REQUIREMENTS FOR RACK STORAGE OF LIQUIDS IN
METAL CONTAINERS OF 5-GALLON CAPACITY OR LESS WITH OR WITHOUT CARTONS ON CONVENTIONAL WOOD PALLETSa|IN-RACK SPRINKLER ARRANGEMENT AND DEMAND|Maximum
spacing|Maximum
spacing|80 ft2/head|100 ft2/head|100 ft2/head| |**TABLE 5704.3.6.§ 1.5. High relevance — show source text
For openings less than or equal to 6 feet in
height that have both a head track and a sill track, the spans are permitted to be multiplied by a factor of 1.5.
d. Minimum Grade 33 ksi steel shall be used for 33 mil and 43 mil thicknesses. Minimum Grade 50 ksi steel shall be used for 54 and 68 mil thicknesses.|For SI: 1 mil = 0.0254 mm, 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 mile per hour = 0.447 m/s, 1 ksi = 1,000 psi = 6.895 MPa.
a. Deflection limit:L/240.
b. Head and sill track spans are based on components and cladding wind pressures and 48-inch tributary span.
c. For openings less than 4 feet in height that have both a head track and sill track, the spans are permitted to be multiplied by 1.75. For openings less than or equal to 6 feet in
height that have both a head track and a sill track, the spans are permitted to be multiplied by a factor of 1.5.
d. Minimum Grade 33 ksi steel shall be used for 33 mil and 43 mil thicknesses. Minimum Grade 50 ksi steel shall be used for 54 and 68 mil thicknesses.|For SI: 1 mil = 0.0254 mm, 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 mile per hour = 0.447 m/s, 1 ksi = 1,000 psi = 6.895 MPa.
a. Deflection limit:L/240.
b. Head and sill track spans are based on components and cladding wind pressures and 48-inch tributary span.
c. For openings less than 4 feet in height that have both a head track and sill track, the spans are permitted to be multiplied by 1.75. For openings less than or equal to 6 feet in
height that have both a head track and a sill track, the spans are permitted to be multiplied by a factor of 1.5.
d. Minimum Grade 33 ksi steel shall be used for 33 mil and 43 mil thicknesses. Minimum Grade 50 ksi steel shall be used for 54 and 68 mil thicknesses.|For SI: 1 mil = 0.0254 mm, 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 mile per hour = 0.447 m/s, 1 ksi = 1,000 psi = 6.895 MPa.
a. Deflection limit:L/240.
b. Head and sill track spans are based on components and cladding wind pressures and 48-inch tributary span.
c. For openings less than 4 feet in height that have both a head track and sill track, the spans are permitted to be multiplied by 1.75. For openings less than or equal to 6 feet in
height that have both a head track and a sill track, the spans are permitted to be multiplied by a factor of 1.5.
d. Minimum Grade 33 ksi steel shall be used for 33 mil and 43 mil thicknesses.§ 0.42 High relevance — show source text
Spacing of fasteners not included in this table shall be based on Table R602.3(2).
f. For wood structural panel roof sheathing attached to gable end roof framing and to intermediate supports within 48 inches of roof edges and ridges, nails shall be spaced at 4
inches on center where the ultimate design wind speed is greater than 130 mph in Exposure B or greater than 110 mph in Exposure C. Fastener spacing applies where roof
framing specific gravity is 0.42 or larger. Where roof framing specific gravity is greater than or equal to 0.35 but less than 0.42 in accordance with AWC NDS, fastening of roof
sheathing shall be with RSRS-03 (21/2″ × 0.131″ × 0.281″ head) nails.
g. Gypsum sheathing shall conform to ASTM C1396 and shall be installed in accordance with ASTM C1280 or GA 253 . Fiberboard sheathing shall conform to ASTM C208.
h. Spacing of fasteners on floor sheathing panel edges applies to panel edges supported by framing members and required blocking and at floor perimeters only. Spacing of fasteners
on roof sheathing panel edges applies to panel edges supported by framing members and required blocking. Blocking of roof or floor sheathing panel edges perpendicular to the
framing members need not be provided except as required by other provisions of this code. Floor perimeter shall be supported by framing members or solid blocking.
i. Where a rafter is fastened to an adjacent parallel ceiling joist in accordance with this schedule, provide two toe nails on one side of the rafter and toe nails from the ceiling joist
to top plate in accordance with this schedule. The toe nail on the opposite side of the rafter shall not be required.|For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 mile per hour = 0.447 m/s; 1 ksi = 6.895 MPa.
a. Nails are smooth-common, box or deformed shanks except where otherwise stated. Nails used for framing and sheathing connections are carbon steel and shall have mini-
mum average bending yield strengths as shown: 80 ksi for shank diameter of 0.192 inch (20d common nail), 90 ksi for shank diameters larger than 0.142 inch but not larger than
0.177 inch, and 100 ksi for shank diameters of 0.142 inch or less. Connections using nails and staples of other materials, such as stainless steel, shall be designed by accepted
engineering practice or approved under Section R104.2.2.
b. RSRS-01 is a Roof Sheathing Ring Shank nail meeting the specifications in ASTM F1667.
c. Nails shall be spaced at not more than 6 inches on center at all supports where spans are 48 inches or greater.
d. Four-foot by 8-foot or 4-foot by 9-foot panels shall be applied vertically.
e. Spacing of fasteners not included in this table shall be based on Table R602.3(2).
f. For wood structural panel roof sheathing attached to gable end roof framing and to intermediate supports within 48 inches of roof edges and ridges, nails shall be spaced at 4
inches on center where the ultimate design wind speed is greater than 130 mph in Exposure B or greater than 110 mph in Exposure C. Fastener spacing applies where roof
framing specific gravity is 0.42 or larger.
Frequently asked questions
Who must sign the Certificate of Verification?
A qualified verifier or testing technician performing the field tests signs the Certificate of Verification (§ 10‑103(a)5); the certificate should list the tests performed and the test method cited in the code (e.g., RA appendices).
If my design used higher‑rated equipment, do I always need both certificates?
If the building’s compliance relies on installed performance above the minimums listed in § 150.1(b)2, then field verification is required and results must be documented on the Certificate of Installation (§ 10‑103(a)3) and Certificate of Verification (§ 10‑103(a)5).
What test procedures do I cite on the verification certificate?
Cite the specific Reference Residential Appendix procedure required by § 150.1(b)2 for that item (for example, RA3.4 for rated HVAC equipment or RA3.1.4.3.9 for low‑leakage air handlers).
Can the installer fill out both certificates?
Installers typically complete the Certificate of Installation (§ 10‑103(a)3). The Certificate of Verification (§ 10‑103(a)5) should be completed by the person/technician who performed the verification tests (often independent or a qualified test technician). Check local enforcement rules for signer qualifications.
Where do I find the actual certificate forms?
The Energy Code requires the use of the certificates identified in § 10‑103; jurisdictional forms or the state’s form library (or local enforcement agency) will provide the official templates to complete and submit.
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