Title 24 · California Energy Code

Permanent label / label certificate requirements for NFRC-rated products

If a window or door is NFRC‑rated (including CMA products), the California Energy Code requires a temporary factory label left in place until inspection and a permanent label or matching label certificate (for CMA/site‑built) as referenced in § 110.6(a)5 and § 10-111(a)2; site‑built products and nonresidential installations also require on‑site acceptance documentation before occupancy.

Ask a question free See coverage

Last reviewed: July 6, 2026

What the code requires — 2-4 sentences

The California Energy Code requires fenestration and exterior door products to carry factory temporary labels and, when applicable, a permanent label or label certificate for products rated using NFRC procedures. The controlling rule is § 110.6(a)5 (labeling requirements) and the code points to the labeling detail requirements in § 10-111(a)2 for permanent labels / label certificates.

If a product is NFRC-rated (including CMA-rated products and site‑built systems covered by § 10-111), it must keep the required temporary label until inspection and must have a permanent label or a matching label certificate available as required by the code.

Requirements in detail

Key defined terms (first mention)

  • Permanent label — the factory-applied, non-removable label required for rated products (see § 10-111(a)2). § 10-111(a)2
  • Label certificate — an NFRC/CMA-issued certificate that can substitute for a physical permanent label for some CMA or site-built products. § 10-111(a)2
  • Temporary label — the removable factory label for manufactured products; must not be removed before inspection. § 110.6(a)5(A)
  • NFRC and CMA (Component Modeling Approach) — NFRC rating procedures and the CMA are the accepted rating methods referenced by the code.

Who needs which label

  • Manufactured fenestration products and exterior doors: temporary label required; permanent label required if NFRC-rated (or label certificate when CMA used). § 110.6(a)5(A–B)
  • Site-built fenestration: use a label certificate when CMA or NFRC procedures apply, per § 10-111 requirements. § 110.6(a)5 referencing § 10-111(a)1–2
  • Site-built nonresidential installations: must be certified to meet acceptance requirements before an occupancy permit and a matching label certificate must be readily accessible on site. § 110.6(a)6 (Acceptance requirements)

What the code explicitly requires (decision-relevant dimensions)

Decision dimension Required value or action Code reference
Temporary label (manufactured products) Must be present on product and not removed before inspection § 110.6(a)5(A)
Permanent label vs label certificate Permanent label or label certificate required when product is rated using NFRC procedures (CMA-rated products may use label certificate) § 110.6(a)5(B)
Site-built fenestration Use label certificate per § 10-111(a)1 (temporary) and § 10-111(a)2 (permanent) when NFRC procedures apply § 110.6(a)5 → § 10-111(a)1–2
Acceptance before occupancy (nonresidential) Matching label certificate for installed products must be accessible at project location and Certificate of Acceptance submitted § 110.6(a)6
CMA (Component Modeling Approach) CMA-rated products use label certificate; ACEs (NFRC-approved entities) issue label certificates Definition and CMA references in code index and definitions

Notes:

  • The code text that requires the permanent label / label certificate is explicitly in § 110.6(a)5(B) which refers to § 10-111(a)2 for the specific label certificate/permanent label requirement.
  • Some guidance (e.g., temporary label content listing certified U‑factor and SHGC) is referenced in the Green Building appendix, which in turn cites Section 10-111(a)1 for temporary label content.

Label content — what the code references (and what is available in the retrieved files)

  • The code requires temporary labels to list certain rated values (e.g., certified U‑factor and SHGC) for product lines in the Green Building appendix—but the explicit itemized content required for a permanent label or label certificate is referenced to § 10-111(a)2. The retrieved files show the cross-references (110.6 → 10-111) and temporary-label specifics in the Green Building appendix, but the actual text of § 10-111(a)2 (the itemized contents of a permanent label / label certificate) was not included in the file excerpts I was given. Therefore I cannot quote the full itemized contents of § 10-111(a)2 here.

Exceptions & special cases

  • Exception for product reuse: fenestration products removed and reinstalled as part of a building alteration or addition are excepted from the labeling requirement in § 110.6(a). The code marks this as an exception to Section 110.6(a).
  • Skylight exceptions: several exceptions allow use of default U‑factor/SHGC/VT calculations for certain skylights (these affect when NFRC ratings are required vs using defaults). See Exception 1 and 2 to § 110.6(a)2–4.
  • CMA / ACE workflow: where the Component Modeling Approach (CMA) is used, the NFRC-approved calculation entity (ACE) can issue label certificates rather than physical permanent labels; the code specifically contemplates label certificates for CMA and site-built products.

Common mistakes

  • Removing the temporary label before the enforcement agency inspection. The temporary label “shall not be removed before inspection” — failing to leave it in place is a frequent compliance failure. § 110.6(a)5(A)
  • Treating a label certificate as optional for NFRC/CMA-rated products. For CMA-rated and site-built NFRC-rated products the code requires a permanent label or a label certificate as applicable. § 110.6(a)5(B) and § 10-111 references.
  • Assuming default table values instead of using NFRC ratings when the product is NFRC-rated — if a product has an NFRC rating, the rated values (and the proper labeling) govern compliance rather than the default values in Table 110.6-A/B. § 110.6 (rating requirements and defaults)
  • Not keeping the label certificate or its matching documentation accessible on-site for acceptance checks (required for site-built in nonresidential before occupancy). § 110.6(a)6

Worked example — concrete scenario

Scenario: A manufacturer ships a fixed, NFRC‑rated commercial window assembly with the following ratings: U‑factor = 0.30, SHGC = 0.25. Product is destined for a multi‑story office building (nonresidential). CMA is not used; this is a factory NFRC rating.

  1. At delivery and installation the product must carry a temporary label (factory-applied). The temporary label must remain on the product until the enforcement agency inspects it on site. § 110.6(a)5(A)
  2. Because the product is rated using NFRC procedures, the product must also have a permanent label or matching label certificate per § 110.6(a)5(B) and the labeling detail in § 10-111(a)2. This means the installer/manufacturer must ensure the permanent label/label certificate accompanies the product and that matching documentation is available on site. § 110.6(a)5(B) → § 10-111(a)2
  3. Before an occupancy permit for the nonresidential building is issued, site-built fenestration would need a Certificate of Acceptance and a matching label certificate readily accessible; for manufactured NFRC-rated products ensure the permanent label or label-certificate documentation is available for acceptance. § 110.6(a)6

Note: The excerpts I was provided confirm the obligation to provide a permanent label or label certificate for NFRC-rated products and point to § 10-111(a)2 for the label/certificate details, but the exact itemized permanent‑label content in § 10-111(a)2 was not present in the retrieved files. For the specific label fields required by § 10-111(a)2, consult the full text of § 10-111(a)2 in Title 24, Part 1.

Related provisions

  • § 110.6(a)5 — Labeling: temporary labels and permanent labels / label certificates for NFRC-rated products.
  • § 10-111(a)2 — (Referenced) permanent label / label certificate details for NFRC-rated products (text not included in retrieved excerpts).
  • § 110.6(a)6 — Fenestration acceptance requirements and Certificate of Acceptance (matching label certificate for site-built fenestration).
  • § 110.6(b) — Field‑fabricated fenestration installation and when default U/SHGC values may be used.
  • Green Building Standards Appendix A6.205.1.1.4 — Temporary label content (lists certified U‑factor and SHGC) and cross‑reference to § 10-111(a)1–2.
  • Definitions / index entries: NFRC, CMA, ACE, site-built fenestration (helpful for interpreting labeling requirements).

Code references

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

  • § 110.6 High relevance — show source text

    Exception 1 to Section 110.6(a)2: If the fenestration product is a skylight in a building covered by the nonresidential standards with less than 200 square feet of skylight area, the default U -factor may be calculated as set forth in Reference Nonresidential Appendix NA6.

    Exception 2 to Section 110.6(a)2: If the fenestration product is an alteration consisting of any area replacement of glass in a skylight product in a building covered by the nonresidential standards, the default U -factor may be calculated as set forth in Reference Nonresidential Appendix NA6. 3. Solar heat gain coefficient SHGC. The fenestration product’s SHGC shall be rated in accordance with NFRC 200, or use the applicable default SHGC set forth in Table 110.6-B.

    Exception 1 to Section 110.6(a)3: If the fenestration product is a skylight in a building covered by the nonresidential standards with less than 200 square feet of skylight area, the default SHGC may be calculated as set forth in Reference Nonresidential Appendix NA6.

    Exception 2 to Section 110.6(a)3: If the fenestration product is an alteration consisting of any area replacement of glass in a skylight product in a building covered by the nonresidential standards, the default SHGC may be calculated as set forth in Reference Nonresidential Appendix NA6. 4. Visible transmittance (VT). The fenestration product’s VT shall be rated in accordance with NFRC 200 or ASTM E972. For tubular daylighting devices VT shall be rated using NFRC 203.

    Exception 1 to Section 110.6(a)4: If the fenestration product is a skylight in a building covered by the nonresidential standards with less than 200 square feet of skylight area, the default VT may be calculated as set forth in Reference Nonresidential Appendix NA6.

    Exception 2 to Section 110.6(a)4: If the fenestration product is an alteration consisting of any area; replacement of glass in a skylight product in a building covered by the nonresidential standards, the default VT may be calculated as set forth in Reference Nonresidential Appendix NA6. 5. Labeling. Fenestration products and exterior doors shall: A. Have a temporary label for manufactured fenestration products and exterior doors or a label certificate when the component modeling approach (CMA) is used and for site-built fenestration meeting the requirements of Section 10-111(a)1. The temporary label shall not be removed before inspection by the enforcement agency; and B. Have a permanent label or label certificate when the component modeling approach (CMA) is used and for sitebuilt fenestration meeting the requirements of Section 10-111(a)2 if the product is rated using NFRC procedures. 6. Fenestration acceptance requirements. Before an occupancy permit is granted site-built fenestration products in other than single-family buildings shall be certified as meeting the Acceptance Requirements for Code Compliance, as specified in the Reference Nonresidential Appendix NA7 to ensure that site-built fenestration meets Standards requirements, including a matching label certificate for product(s) installed and be readily accessible at the project location. A certificate of accep

    2025 CALIFORNIA ENERGY CODE 55

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

  • § 110.6 High relevance — show source text

    Exception 2 to Section 110.6(a)4: If the fenestration product is an alteration consisting of any area; replacement of glass in a skylight product in a building covered by the nonresidential standards, the default VT may be calculated as set forth in Reference Nonresidential Appendix NA6. 5. Labeling. Fenestration products and exterior doors shall: A. Have a temporary label for manufactured fenestration products and exterior doors or a label certificate when the component modeling approach (CMA) is used and for site-built fenestration meeting the requirements of Section 10-111(a)1. The temporary label shall not be removed before inspection by the enforcement agency; and B. Have a permanent label or label certificate when the component modeling approach (CMA) is used and for sitebuilt fenestration meeting the requirements of Section 10-111(a)2 if the product is rated using NFRC procedures. 6. Fenestration acceptance requirements. Before an occupancy permit is granted site-built fenestration products in other than single-family buildings shall be certified as meeting the Acceptance Requirements for Code Compliance, as specified in the Reference Nonresidential Appendix NA7 to ensure that site-built fenestration meets Standards requirements, including a matching label certificate for product(s) installed and be readily accessible at the project location. A certificate of accep

    2025 CALIFORNIA ENERGY CODE 55

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

    ALL OCCUPANCIES—MANDATORY REQUIREMENTS FOR THE MANUFACTURE, CONSTRUCTION AND INSTALLATION OF SYSTEMS, EQUIPMENT AND BUILDING COMPONENTS

    tance certifying that the fenestration product meets the acceptance requirements shall be completed, signed and submitted to the enforcement agency. Exception to Section 110.6(a): Fenestration products removed and reinstalled as part of a building alteration or addition.

    (b) Installation of field-fabricated fenestration and exterior doors. Field-fabricated fenestration and field-fabricated exterior doors may be installed only if the compliance documentation has demonstrated compliance for the installation using U factors from Table 110.6-A and SHGC values from Table 110.6-B. Field-fabricated fenestration and field-fabricated exterior doors shall be caulked between the fenestration products or exterior door and the building, and shall be weatherstripped.

    Exception to Section 110.6(b): Unframed glass doors and fire doors need not be weatherstripped or caulked.

    TABLE 110.6-A—DEFAULT FENESTRATION PRODUCT U-FACTORS Col2 Col3 Col4 Col5
    FRAME1,2 PRODUCT TYPE SINGLE PANE3, 4
    U-FACTOR    		 DOUBLE PANE1, 3, 4
    U-FACTOR    		 GLASS BLOCK2, 3
    U-FACTOR
    Metal Operable 1.28 0.79 0.87
    Metal Fixed 1.19 0.71 0.72
    Metal Greenhouse/garden window 2.26 1.40 NA
    Metal Glazed doors 1.25 0.77 NA
    Metal Skylight 1.98 1.3 NA
    Metal, thermal break Operable NA 0.66 NA
    Metal,
  • § 0.69 High relevance — show source text

    A.| |Metal, thermal break|Fixed|Clear|N.A.|0.69|N.A.| |Metal, thermal break|Operable|Tinted|N.A.|0.53|N.A.| |Metal, thermal break|Fixed|Tinted|N.A.|0.57|N.A.| |Nonmetal|Operable|Clear|0.74|0.65|0.70| |Nonmetal|Fixed|Clear|0.76|0.67|0.67| |Nonmetal|Operable|Tinted|0.60|0.53|N.A.| |Nonmetal|Fixed|Tinted|0.63|0.55|N.A.| |N.A. = Not applicable.
    1. Translucent or transparent panels shall use glass block values.|N.A. = Not applicable.
    1. Translucent or transparent panels shall use glass block values.|N.A. = Not applicable.
    1. Translucent or transparent panels shall use glass block values.|N.A. = Not applicable.
    1. Translucent or transparent panels shall use glass block values.|N.A. = Not applicable.
    1. Translucent or transparent panels shall use glass block values.|N.A. = Not applicable.
    1. Translucent or transparent panels shall use glass block values.|

    2025 CALIFORNIA GREEN BUILDING STANDARDS CODE APPENDIX A6.1-5

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

    APPENDIX A6.1 — VOLUNTARY STANDARDS FOR HEALTH FACILITIES [OSHPD 1, 2 & 4]

    A6.205.1.1.4 Labeling. Fenestration products shall:

    1. Have a temporary label (or label certificate for site- built fenestration) meeting the requirements of Section 10111(a)1 of Title 24, Part 1 not to be removed before inspection by the enforcement agency, listing the certified U factor and SHGC and certifying that the air leakage requirements of Section A6.205.1.1.1 are met for each product line; and
    2. Have a permanent label (or label certificate for site-built fenestration) meeting the requirements of Section 10111(a)2 of Title 24, Part 1 if the product is rated using NFRC procedures.

    A6.205.1.1.5 Fenestration acceptance requirements. Before an occupancy permit is granted, site-built fenestration products in other than low-rise residential buildings shall be certified as meeting the Acceptance Requirements for Code Compliance, as specified by the Reference Nonresidential Appendix NA7 of the California Energy Commission 2008 Building Energy Efficiency Standards for Residential and Nonresidential Buildings to ensure that site-built fenestration meet Standards requirements, including a matching label certificate for each product installed and be readily accessible at the project location. A Certificate of Acceptance shall be submitted to the enforcement agency that certifies that the fenestration product meets the acceptance requirements.

    Exception: Fenestration products removed and reinstalled as part of a building alteration or addition.

  • § 205.1.1.4 High relevance — show source text

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

    APPENDIX A6.1 — VOLUNTARY STANDARDS FOR HEALTH FACILITIES [OSHPD 1, 2 & 4]

    A6.205.1.1.4 Labeling. Fenestration products shall:

    1. Have a temporary label (or label certificate for site- built fenestration) meeting the requirements of Section 10111(a)1 of Title 24, Part 1 not to be removed before inspection by the enforcement agency, listing the certified U factor and SHGC and certifying that the air leakage requirements of Section A6.205.1.1.1 are met for each product line; and
    2. Have a permanent label (or label certificate for site-built fenestration) meeting the requirements of Section 10111(a)2 of Title 24, Part 1 if the product is rated using NFRC procedures.

    A6.205.1.1.5 Fenestration acceptance requirements. Before an occupancy permit is granted, site-built fenestration products in other than low-rise residential buildings shall be certified as meeting the Acceptance Requirements for Code Compliance, as specified by the Reference Nonresidential Appendix NA7 of the California Energy Commission 2008 Building Energy Efficiency Standards for Residential and Nonresidential Buildings to ensure that site-built fenestration meet Standards requirements, including a matching label certificate for each product installed and be readily accessible at the project location. A Certificate of Acceptance shall be submitted to the enforcement agency that certifies that the fenestration product meets the acceptance requirements.

    Exception: Fenestration products removed and reinstalled as part of a building alteration or addition.

    A6.205.1.2 Installation of field-fabricated fenestration and exterior doors. Field-fabricated fenestration and field-fabricated exterior doors may be installed only if the compliance documentation has demonstrated compliance for the installation using U factors from Table A6.205.1-A and SHGC values from Table A6.205.1-B. Field-fabricated fenestration and field-fabricated exterior doors shall be caulked between the fenestration products or exterior door and the building and shall be weatherstripped.

    Exception: Unframed glass doors and fire doors need not be weatherstripped or caulked.

    A6.205.2 Joints and other openings. Joints and other openings in the building envelope that are potential sources of air leakage shall be caulked, gasketed, weatherstripped or otherwise sealed to limit infiltration and exfiltration.

    A6.205.3 Insulation and roofing products.

    A6.205.3.1 Certification by manufacturers. Any insulation shall be certified by Department of Consumer Affairs, Bureau of Household Good and Services that the insulation conductive thermal performance is approved pursuant to the California Code of Regulations, Title 24, Part 12, Chapters 12-13, Article 3,“Standards for Insulating Material.”

    A6.205.3.2 Installation of urea formaldehyde foam insulation. Urea formaldehyde foam insulation may be applied or installed only if:

    1. It is installed in exterior side walls; and

    2. A four-mil-thick plastic polyethylene vapor barrier or equivalent plastic sheathing vapor barrier is installed between the urea formaldehyde foam insulation and the interior space in all applications.

  • § 8-11 Medium relevance — show source text

    In addition to the required description on the reverse side of the certificate as to yardage or quantity, color and kind, notation should be made of the manufacturer’s production or lot control number, the purchase order or invoice number, and, where possible, the ulti- mate location and use.

    [California Code of Regulations, Title 19, Division 1, §1324] Job Labeling.

    To every article that is treated and to every roll or package of registered approved fabric or material, a small label or tag shall be securely affixed, bearing the following information:

    (a) The Seal of Registration of the State Fire Marshal of California.

    (b) Name and registration number of the concern responsible for the job or production.

    (c) Name of the registered chemical used or the registered fabric or material.

    (d) Date the chemical was applied, or the fabric or material was produced.

    2025 CALIFORNIA FIRE CODE 8-11

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

    INTERIOR FINISH, DECORATIVE MATERIALS AND FURNISHINGS

    (e) The statement, “This article must be re-treated after washing or dry cleaning by systems with soap and water added” (if treated with a “Type II” chemical).

    This information may be stamped, printed or stenciled on the article if so desired.

    Concerns which treat or manufacture yardage goods may print or stencil their name, or the name of their fabric if registered, on the salvage (at least once every three yards) instead of affixing the label or tag as above.

    [California Code of Regulations, Title 19, Division 1, §1325] Labeling Required .

    No drape, hanging, curtain, drop or similar decorative material or exterior fabric which has been treated by a registered flame-retardant application concern, either as yardage or after fabrication, or which is made from a registered approved fabric shall be installed after the effective date of these rules and regulations [California Code of Regulations, Title 19, Division 1, Chapter 8] in any place or under any condition governed by Sections 13115 and 13119 of the Health and Safety Code unless such drape, hanging, curtain, drop, or similar decorative material or exterior fabric shall be labeled as required by California Code of Regulations, Title 19, Division 1, Section 1324.

    [California Code of Regulations, Title 19, Division 1, §1326] Retreatment.

    In cases where instructions are issued by the State Fire Marshal requiring retreatment or replacement of fabrics or materials previously treated with a flame-retardant chemical or registered as an approved fabric or material, the retreatment or replacement shall be made within ten (10) days after date of the order so requiring. A new certificate of flame resistance covering each such retreatment shall be delivered as for an original job as is provided for by California Code of Regulations, Title 19, Division 1, Section 1321. A new sample of the retreated fabric or material shall be attached to the certificate of flame resistance submitted to the State Fire Marshal.

    [California Code of Regulations, Title 19, Division 1, §1327] Installation.

  • § 110.3 Medium relevance — show source text

    K

    kBtu/Hour 110.3(c)6, 150.0(n)4, 160.4(d) Kelvin 140.6(a)4B, 170.2(e)2D Kitchen Exhaust system 140.9(b) Local mechanical exhaust 150.0(o)2B, 150.2(b)1M, 160.2(b)2B, 180.2(b)5B Range hood 150.0(k)1A, 150.0(o)1G, 160.2(b)2A Range Hood Airflow Rates (CFM) and ASTM E3087 Capture Efficiency (CE) Ratings According to Dwelling

    Unit Floor Area and Kitchen Range Fuel Type Table 150.0-G, Table 160.2-G

    L

    Label Certificate 10-111(a-b), 10-111(d)11, 110.6(a)5B, 110.6(a)6 Labeling 10-111, 10-113, 100.0(g), 110.6(a)5, 150.0(m)12E, 150.0(m)13A, 150.0(m)6, 160.2(b)1E, 160.5(b)5F, 160.3(b)5L Laboratory 10-103.1(c)3B, 10-103.2(c)3B, Table 120.1-C, 120.4(b)1A, Table 140.4-B, 140.4(q), Table 140.6-C, 140.9(c), Table 140.9-D, 141.1(a), 150.0(m)2A, 160.3(b)5B, 160.3(c)2C, Table 170.2-C, 170.2(c)4O Landscaping 110.8(g)2A Large Enclosed Space 140.3(c), 170.2(b) Leakage Rate 120.4(g), 140.3(a)9C, 140.4(e)2D, 141.0(b)2D, 141.0(b)2Q, 150.0(m)11, 150.0(o)1C, 150.1(b)3, 160.3(b)5K, 160.3(c)2H, 170.1(d)2H, 170.2(c)4C, 180.2(b)2B Leakage Testing 120.4(g)2, 141.0(b)2D, 150.0(m)11, 160.3(b)5K, 160.3(c)2H Leaving Air temperature Table 140.4-A Chilled water temperature 110.2(a) Condenser temperature 110.2(a) Evaporator temperature 110.2(a) Fluid temperature Table 110.2-D, 140.4(h) Gas temperature 120.6(a)8, 120.6(b)5 Heating water temperature Table 110.2-N Library Building Spaces 140.4(a)2E-G Light Mass Wall 120.7(b)3, Table 140.3-C, 160.1(b)4 Lighting 10-103.1, 10-114, 100.0(a-f), Table 100.0-A, 110.

  • § 110.10 Medium relevance — show source text

    Inverter 110.10(c) Irrigation System 110.10(b)1A, 110.10(b)1B Isolation Area device 120.2(g), 160.3(a)2F Controls 10-103.1(c)3B, 120.5(a)8, 160.3(d)1H Equipment 150.0(s)4 Valve 110.3(c)4C-D, 110.3(c)6

    J

    Joint Appendix JA2 140.4(b)3A, 150.0(h)2, 150.1(a), 160.3(b)2B, 170.0(a), 170.2(c)2 JA4 110.8(h), Table 150.1-A, Table

    170.2-A JA5 110.12(a)5 JA6 120.2(i)8, 150.1(c)7A, 150.2(b)1F, 160.3(a)2H, 170.2(c)3B, 180.2(b)2A JA8 150.0(k)1B, 150.0(k)1D, Table 150.0-A, 150.2(b)1K, 160.5(a)1B, 160.5(a)1D, Table 160.5-A, 180.2(b)4A JA9 110.2(f) JA11 140.10(a), 150.1(c)14, 170.2(f), 170.2(g) JA12 140.10(b), 150.1(c)14, 170.2(f), 170.2(h) Joints 110.7, 120.3(b)2, 120.4(b)1D, 120.4(b)2D, 140.3(a)9B, 150.0(m)2D, 150.09(m)3D, 160.3(b)5B, 160.3(b)5C, 160.3(c)1C, 160.3(c)2C, 160.4(f)2B

    K

    kBtu/Hour 110.3(c)6, 150.0(n)4, 160.4(d) Kelvin 140.6(a)4B, 170.2(e)2D Kitchen Exhaust system 140.9(b) Local mechanical exhaust 150.0(o)2B, 150.2(b)1M, 160.2(b)2B, 180.2(b)5B Range hood 150.0(k)1A, 150.0(o)1G, 160.2(b)2A Range Hood Airflow Rates (CFM) and ASTM E3087 Capture Efficiency (CE) Ratings According to Dwelling

    Unit Floor Area and Kitchen Range Fuel Type Table 150.0-G, Table 160.2-G

    L

    Label Certificate 10-111(a-b), 10-111(d)11, 110.6(a)5B, 110.6(a)6 Labeling 10-111, 10-113, 100.0(g), 110.6(a)5, 150.0(m)12E, 150.0(m)13A, 150.0(m)6, 160.2(b)1E, 160.5(b)5F, 160.

  • § 10-111 Medium relevance — show source text

    10-111(b)2C, 110.6(a), 110.6(b) Garden window 150.0(q)1, 150.2(b)2C, 160.1(e), 180.2(c)3 Glazed door Table 110.6-A, 140.3(a)7, Table 140.3-B, Table 140.3-C, Table 140.3-D, 150.1(c)3A, 150.1(c)5, 170.2(a)3A, 170.2(a)4, 170.2(a)6, Table 180.2-B Glazing 10-111(d)1, Table 110.6-B, 120.6(h)4B, 130.1(d)3D, 130.1(d)5, 140.3(a)5, 150.1(c)3B, 150.1(c)4D, 160.1(b)4D,170.2(a)3A, 170.2(a)3A, 170.2(a)3A, 170.2(a)3B Glazing area 130.1(d)5, 150.1(c)3A, 160.1(b)4D, 160.5(b)4D, 170.2(a)3A Glazing height 140.3(d)1C Glazing material 140.3(c)5, 170.2(a)3B,170.2(b)5 Greenhouse window 150.0(q)1, 150.2(b)2, 160.1(e)1, 180.2(c)3 Interior shading 140.3(a)5C, 170.2(a)3A National Fenestration Rating Council (NFRC) 100.1 NFRC-100 10-111(a)1B, 110.6(b) NFRC-200 10-111(a)1B, 110.6(a)3-4, Table 110.6-B, 140.3(a)5D, 170.2(a)3A NFRC-203 10-111(a)1B, 110.6(a)4 NFRC-400 10-111(a)1B, 110.6(a)1 Operable shading 140.3(d)1D, 150.1(c)4B Relative Solar Heat Gain Coefficient (RSHGC) 140.3(a)5C-D, Table 140.3-B, Table 140.3-C, 141.0(b)2A, Table 141.0-A, 141.0(b)3A, Table 141.0-E, 170.2(a)3A, Table 170.2-A, 180.2(b)1C, Table 180.2-B Site-built fenestration 110.6(a)5-6, 150.1(c)3A, 170.2(a)3A Skylight products 150.0(q), 160.1(e) Skylight Roof Ratio (SRR) 140.3(a)6A, Table 140.3-B, Table 140.3-C, Table 140.3-D, 170.2(a)3B Solar Heat Gain Coefficient (SHGC) 10-111, 10-112(a), 110.6(a)3, 110.6(b), Table 110.6-B, 140.3(a)5CD, 140.

  • California Energy Code Medium relevance — show source text

    FAN SYSTEM, SINGLE-CABINET is a fan system where a single fan, a single-fan array, a single set of fans operating in parallel, or fans or fan arrays in series and embedded in the same cabinet both supply air to a space and recirculate the air.

    FAN SYSTEM, SUPPLY-ONLY is a fan system that provides supply air to interior spaces and does not recirculate the air.

    FAN SYSTEM, TRANSFER is a fan system that exclusively moves air from one occupied space to another.

    FAN SYSTEM AIRFLOW (cfm) is the sum of the airflow of all fans with fan electrical input power greater than 1 kW at fan system design conditions, excluding the airflow that passes through downstream fans with fan input power less than 1 kW.

    FAN SYSTEM DESIGN CONDITIONS are operating conditions that can be expected to occur during normal system operation that result in the highest supply airflow rate to or from the conditioned spaces served by the fan system. FAN SYSTEM ELECTRICAL INPUT POWER (Fan kW design,system ) is the sum of the fan electrical input power (Fan kW design ) in kilowatts of all fans that are required to operate at fan system design conditions to supply air from the heating or cooling source to the conditioned spaces, return it to the source, exhaust it to the outdoors or transfer it to another space.

    FENESTRATION: Includes the following:

    ACE is an NFRC-Approved Calculation Entity that conducts calculations of fenestration product ratings for certification authorization using the NFRC component modeling approach and issues label certificates to Specifying Authorities for product certification authorization in accordance with NFRC requirements.

    ALTERED COMPONENT is a new fenestration component that has undergone an alteration other than a repair and is subject to all applicable standards requirements.

    BAY WINDOW is a combination assembly which is composed of three or more individual windows either joined side by side or installed within opaque assemblies and which projects away from the wall on which it is installed. Center windows, if used, are parallel to the wall on which the bay is installed, the end panels or two side windows, are angled with respect to the center window. Common angles are 30° and 45°, although other angles may be employed.

    CHROMOGENIC GLAZING is a class of switchable glazing that includes active materials (e.g., electrochromic) and passive materials (e.g., photochromic and thermochromic) permanently integrated into the glazing assembly. Their primary function is to switch reversibly from a high transmission state to a low transmission state with associated changes in VT and SHGC.

    CLERESTORY FENESTRATION is fenestration installed above a roofline greater than or equal to 60 degrees from the horizontal, or any portion of exterior vertical glazing greater than 8 feet per floor above the finished floor of a space.

    CMA (component modeling approach) is a fenestration product certification program from the National Fenestration Rating Council (NFRC) that enables energy-related performance ratings for nonresidential fenestration products, including the thermal performance U -factor, solar heat gain coefficient, and visible transmittance.

    2025 CALIFORNIA ENERGY CODE 15

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

    ALL OCCUPANCIES—GENERAL PROVISIONS

  • § 5.3 Medium relevance — show source text

    1703 A .5.3 Label information. The label shall contain the manufacturer’s identification, model number, serial number or definitive information describing the performance characteristics of the product, material or assembly and the approved agency’s identification.

    1703 A .5.4 Method of labeling. Information required to be permanently identified on the product, material or assembly shall be acid etched, sand blasted, ceramic fired, laser etched, embossed or of a type that, once applied, cannot be removed without being destroyed.

    1703 A .6 Evaluation and follow-up inspection services. Where structural components or other items regulated by this code are not visible for inspection after completion of a prefabricated assembly, the owner or the owner’s authorized agent shall submit a report of each prefabricated assembly. The report shall indicate the complete details of the assembly, including a description of the assembly and its components, the basis upon which the assembly is being evaluated, test results and similar information and other data as necessary for the building official to determine conformance to this code. Such a report shall be approved by the building official.

    1703 A .6.1 Follow-up inspection. The owner or the owner’s authorized agent shall provide for special inspections of fabricated items in accordance with Section 1704 A .2.5.

    1703 A .6.2 Test and inspection records. Copies of necessary test and special inspection records shall be filed with the building official.

    SECTION 1704 A —SPECIAL INSPECTIONS AND TESTS, CONTRACTOR RESPONSIBILITY AND STRUCTURAL OBSERVATION

    1704 A .1 General. Special inspections and tests, statements of special inspections, responsibilities of contractors, submittals to the building official and structural observations shall meet the applicable requirements of this section.

    1704 A .2 Special inspections and tests. Where application is made to the building official for construction as specified in Section 105 the owner shall employ one or more approved agencies to provide special inspections and tests during construction on the types of work specified in Section 1705 A and identify the approved agencies to the building official. These special inspections and tests are in addition to the inspections by the building official that are identified in Section 110.

    [OSHPD 1 & 4] The inspectors shall act under the direction of the architect or structural engineer or both, and be responsible to the Owner. Where the California Administrative Code (CAC) Section 7-115 (a) 2 permits construction documents to be prepared under the

    17A-4 2025 CALIFORNIA BUILDING CODE

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

    SPECIAL INSPECTIONS AND TESTS

    responsible charge of a mechanical, electrical or civil engineer, inspectors shall be permitted to work under the direction of engineer in appropriate branch as permitted therein.

    Exceptions:

    1. Special inspections and tests are not required for construction of a minor nature or as warranted by conditions in the jurisdiction as approved by the building official.
    2. [DSA-SS, DSA-SS/CC] Reference to Section 105 and Section 110 shall be to the California Administrative Code instead.
  • § 10-111 Medium relevance — show source text

    1 NFRC-100 10-111(a)1B, 110.6(b) NFRC-200 10-111(a)1B, 110.6(a)3-4, Table 110.6-B, 140.3(a)5D, 170.2(a)3A NFRC-203 10-111(a)1B, 110.6(a)4 NFRC-400 10-111(a)1B, 110.6(a)1 Operable shading 140.3(d)1D, 150.1(c)4B Relative Solar Heat Gain Coefficient (RSHGC) 140.3(a)5C-D, Table 140.3-B, Table 140.3-C, 141.0(b)2A, Table 141.0-A, 141.0(b)3A, Table 141.0-E, 170.2(a)3A, Table 170.2-A, 180.2(b)1C, Table 180.2-B Site-built fenestration 110.6(a)5-6, 150.1(c)3A, 170.2(a)3A Skylight products 150.0(q), 160.1(e) Skylight Roof Ratio (SRR) 140.3(a)6A, Table 140.3-B, Table 140.3-C, Table 140.3-D, 170.2(a)3B Solar Heat Gain Coefficient (SHGC) 10-111, 10-112(a), 110.6(a)3, 110.6(b), Table 110.6-B, 140.3(a)5CD, 140.3(a)6C, Table 140.3-B, Table140.3-C, Table 140.3-D, Table 140.3-E, 140.4(b)5, 150.1(c)3, 150.1(c)4, Table 150.1-A, 150.2(b)1A, 150.2(b)1B, Table 150.2-D, 170.2(a)3A, 170.2(a)3B South-facing 140.3(d)1A, 140.3(d)3B, 150.1(c)4D Spandrel panel 120.7(b)6, 141.0(b)1B, 160.1(b)6, 180.2(a)2D

    2025 CALIFORNIA ENERGY CODE 307

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

    INDEX

    120.7(a)3C, 130.1(d), 140.3(a)9C, 140.3(c), 140.4(g), 140.6(c)1D, 140.6(c)2D, 140.6(c)3D, 140.6(c)3H-I, 140.10(a), Table 140.10-A, 141.0(b)2D, Equation 150.0-B, 150.0(q)1, Table 150.0-G, 150.1(c)3, 150.1(c)8, 150.1(c)12, Equation 150.1-C, 150.2(a)1, 160.1(e)1, Equation 160.2-B, 160.2(c)2, Equation 160.2-C, 160.2(c)5D,

  • § 2-5 Medium relevance — show source text

    Class II: acetyl peroxide 25 percent, t-butyl hydroperoxide 70 percent (with DTBP and t-BuOH diluents), t-butyl peroxybenzoate 98 percent, t-butyl peroxy-2-ethylhexanoate 97 percent, t-butyl peroxyisobutyrate 75 percent, t-butyl peroxyisopropyl-carbonate 75 percent, t-butyl peroxypivalate 75 percent, dybenzoyl peroxydicarbonate 85 percent, di-sec-butyl peroxydicarbonate 98 percent, di-secbutyl peroxydicarbonate 75 percent, 1,1-di-(t-butylperoxy)-3,5,5-trimethyecyclohexane 95 percent, di-(2-ethythexyl) peroxydicarbonate 97 percent, 2,5-dymethyl-2-5 di (benzoylperoxy) hexane 92 percent, and peroxyacetic acid 43 percent.

    Class III: acetyl cyclohexane sulfonal peroxide 29 percent, benzoyl peroxide 78 percent, benzoyl peroxide paste 55 percent, benzoyl peroxide paste 50 percent peroxide/50 percent butylbenzylphthalate diluent, cumene hydroperoxide 86 percent, di(4-butylcyclohexyl) peroxydicarbonate 98 percent, t-butyl peroxy-2-ethylhexanoate 97 percent, t-butyl peroxyneodecanoate 75 percent, decanoyl peroxide 98.5 percent, di-t-butyl peroxide 99 percent, 1,1-di-(t-butylperoxy)3,5,5-trimethylcyclohexane

    2025 CALIFORNIA FIRE CODE APPENDIX E-5

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

    APPENDIX E—HAZARD CATEGORIES

    75 percent, 2,4-dichlorobenzoyl peroxide 50 percent, di-isopropyl peroxydicarbonate 30 percent, 2,-5-di-methyl-2,5-di-(2ethylhexanolyperoxy)-hexane 90 percent, 2,5-dimethyl-2,5-di-(t-butylperoxy) hexane 90 percent and methyl ethyl ketone peroxide 9 percent active oxygen diluted in dimethyl phthalate.

    Class IV: benzoyl peroxide 70 percent, benzoyl peroxide paste 50 percent peroxide/15 percent water/35 percent butylphthalate diluent, benzoyl peroxide slurry 40 percent, benzoyl peroxide powder 35 percent, t-butyl hydroperoxide 70 percent, (with water diluent), t-butyl peroxy-2-ethylhexanoate 50 percent, decumyl peroxide 98 percent, di-(2-ethylhexal) peroxydicarbonate 40 percent, laurel peroxide 98 percent, p-methane hydroperoxide 52.5 percent, methyl ethyl ketone peroxide 5.5 percent active oxygen and methyl ethyl ketone peroxide 9 percent active oxygen diluted in water and glycols.

  • § 0.59 Medium relevance — show source text

    12|NA| |Metal, thermal break|Glazed doors|NA|0.59|NA| |Metal, thermal break|Skylight|NA|1.11|NA| |Nonmetal|Operable|0.99|0.58|0.60| |Nonmetal|Fixed|1.04|0.55|0.57| |Nonmetal|Greenhouse/garden window|0.99|0.53|NA| |Nonmetal|Glazed doors|1.94|1.06|NA| |Nonmetal|Skylight|1.47|0.84|NA| |1. For all dual-glazed fenestration products, adjust the listed_U_-factors as follows:
    a. Add 0.05 for products with dividers between panes if spacer is less than7/16 inch wide.
    b. Add 0.05 to any product with true divided lite (dividers through the panes).
    2. Translucent or transparent panels shall use glass block values when not rated by NFRC 100.
    3. Visible Transmittance (VT) shall be calculated by using Reference Nonresidential Appendix NA6.
    4. Windows with window film applied that is not rated by NFRC 100 shall use the default values from this table.|1. For all dual-glazed fenestration products, adjust the listed_U_-factors as follows:
    a. Add 0.05 for products with dividers between panes if spacer is less than7/16 inch wide.
    b. Add 0.05 to any product with true divided lite (dividers through the panes).
    2. Translucent or transparent panels shall use glass block values when not rated by NFRC 100.
    3. Visible Transmittance (VT) shall be calculated by using Reference Nonresidential Appendix NA6.
    4. Windows with window film applied that is not rated by NFRC 100 shall use the default values from this table.|1. For all dual-glazed fenestration products, adjust the listed_U_-factors as follows:
    a. Add 0.05 for products with dividers between panes if spacer is less than7/16 inch wide.
    b. Add 0.05 to any product with true divided lite (dividers through the panes).
    2. Translucent or transparent panels shall use glass block values when not rated by NFRC 100.
    3. Visible Transmittance (VT) shall be calculated by using Reference Nonresidential Appendix NA6.
    4. Windows with window film applied that is not rated by NFRC 100 shall use the default values from this table.|1. For all dual-glazed fenestration products, adjust the listed_U_-factors as follows:
    a. Add 0.05 for products with dividers between panes if spacer is less than7/16 inch wide.
    b. Add 0.05 to any product with true divided lite (dividers through the panes).
    2. Translucent or transparent panels shall use glass block values when not rated by NFRC 100.
    3. Visible Transmittance (VT) shall be calculated by using Reference Nonresidential Appendix NA6.
    4. Windows with window film applied that is not rated by NFRC 100 shall use the default values from this table.|1. For all dual-glazed fenestration products, adjust the listed_U_-factors as follows:
    a.

  • § 31-6 Medium relevance — show source text

    31-6 2025 CALIFORNIA FIRE CODE

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

    TENTS, TEMPORARY SPECIAL EVENT STRUCTURES AND OTHER MEMBRANE STRUCTURES

    of Title 19, California Code of Regulations, Chapter 8, Section 1237.1. Additionally, it shall indicate that the bunting and combustible decorative materials and effects are composed of material meeting the flame propagation performance criteria of Title 19, California Code of Regulations, Chapter 8, Section 1237.1, as applicable. Alternatively, the materials shall be treated with a flame retardant in an approved manner and meet the flame propagation performance criteria of the applicable test method of Title 19, California Code of Regulations, Chapter 8. The certificate shall indicate compliance with the testing requirements of Title 19, California Code of Regulations, Chapter 8. The flame propagation performance criteria shall be effective for the period specified by the registration .

    For California, all fabrics and all interior decorative fabrics or materials shall be flame resistant in accordance with the provisions set forth in CCR, Title 19, Division 1, and Chapter 8, and shall meet the requirements of this section. Tops and sidewalls shall be made either from fabric that has been flame-resistant treated with an approved exterior chemical process by an approved application concern, or from inherently flame-resistant fabric approved and listed by the State Fire Marshal (see CCR, Title 19, Division 1, Chapter 8).

    3104.3 Label. Membrane structures or tents shall have a permanently affixed label bearing the following information:

    1. The identification of size and fabric or material.

    2. The names and addresses of the manufacturers of the tent or air-supported structure.

    3. A statement that the fabric or material meets the requirements of Section 3104.2.

    4. If treated, the date when a flame-retardant treatment was last applied to the fabric or material, the trade name or kind of chemical used in treatment, name of person or firm treating the fabric or material, and name of testing agency and test standard by which the fabric or material was tested.

    5. If untreated, a statement that no treatment was applied when the fabric or material met the requirements of Section 3104.2.

    [California Code of Regulations, Title 19, Division 1, §334.] Requirements Pertaining to All Tents.

    All tents manufactured for sale in California shall be labeled in accordance with the appropriate provisions of California Code of Regulations, Title 19, Division 1, Section 335.

    [California Code of Regulations, Title 19, Division 1, §335.(a) and (b)] Labeling of Tents.

    (a) Each section of top and sidewall in large tents shall have a durable label, permanently affixed, bearing the following information:

    (1) The Seal of Registration.

    (2) If treated fabric, the name and registration number of the approved application concern and approved chemical used, and the date of treatment.

    (3) If registered fabric, the trade name and registration number of the approved fabric, and the date of production.

    In lieu of attached labels, the required information may be applied directly to the fabric by print, stamp or stencil.

    (b) Small tents shall have a permanently affixed label bearing the information in California Code of Regulations, Title 19, Division 1, Section 335, subsection (a), or shall comply with the provisions specified in CPAI-84 (1975) which reads as follows:

  • § 0.05 Medium relevance — show source text

    Visible Transmittance (VT) shall be calculated by using Reference Nonresidential Appendix NA6.
    4. Windows with window film applied that is not rated by NFRC 100 shall use the default values from this table.|1. For all dual-glazed fenestration products, adjust the listed_U_-factors as follows:
    a. Add 0.05 for products with dividers between panes if spacer is less than7/16 inch wide.
    b. Add 0.05 to any product with true divided lite (dividers through the panes).
    2. Translucent or transparent panels shall use glass block values when not rated by NFRC 100.
    3. Visible Transmittance (VT) shall be calculated by using Reference Nonresidential Appendix NA6.
    4. Windows with window film applied that is not rated by NFRC 100 shall use the default values from this table.|1. For all dual-glazed fenestration products, adjust the listed_U_-factors as follows:
    a. Add 0.05 for products with dividers between panes if spacer is less than7/16 inch wide.
    b. Add 0.05 to any product with true divided lite (dividers through the panes).
    2. Translucent or transparent panels shall use glass block values when not rated by NFRC 100.
    3. Visible Transmittance (VT) shall be calculated by using Reference Nonresidential Appendix NA6.
    4. Windows with window film applied that is not rated by NFRC 100 shall use the default values from this table.|1. For all dual-glazed fenestration products, adjust the listed_U_-factors as follows:
    a. Add 0.05 for products with dividers between panes if spacer is less than7/16 inch wide.
    b. Add 0.05 to any product with true divided lite (dividers through the panes).
    2. Translucent or transparent panels shall use glass block values when not rated by NFRC 100.
    3. Visible Transmittance (VT) shall be calculated by using Reference Nonresidential Appendix NA6.
    4. Windows with window film applied that is not rated by NFRC 100 shall use the default values from this table.|

    TABLE 110.6-B—DEFAULT SOLAR HEAT GAIN COEFFICIENT (SHGC) Col2 Col3 Col4 Col5 Col6
    FRAME TYPE PRODUCT GLAZING FENESTRATION PRODUCT SHGC FENESTRATION PRODUCT SHGC FENESTRATION PRODUCT SHGC
    FRAME TYPE PRODUCT GLAZING Single Pane2, 3
    SHGC    		 Double Pane2, 3
    SHGC    		 Glass Block1, 2
    SHGC
    Metal Operable Clear 0.80 0.70 0.70
    Metal Fixed Clear 0.83 0.73 0.73
    Metal Operable Tinted 0.67 0.59 NA
    Metal Fixed Tinted 0.68 0.60 NA
    Metal, thermal break Operable Clear NA 0.63 NA
    Metal, thermal break Fixed Clear NA 0.69 NA
    Metal, thermal break Operable Tinted NA 0.
  • § 10-111 Medium relevance — show source text

    HORIZONTAL SLATS, when referring to a daylighting device, is a set of adjacent surfaces located directly adjacent to vertical fenestration, oriented horizontally and projecting horizontally from its interior or exterior vertical surface.

    INTEGRATED SHADING SYSTEM is a class of fenestration products including an active layer: e.g., shades, louvers, blinds or other materials permanently integrated between two or more glazing layers. The U -factor and/or SHGC and VT of the insulating glass assembly can be altered by reversibly changing the enclosed active layer.

    LIGHT SHELF is an adjacent, opaque surfaced daylighting device located at the sill of clerestory glazing, oriented horizontally and projecting horizontally from an interior or exterior vertical surface.

    MANUFACTURED or KNOCKED DOWN PRODUCT is a fenestration product constructed of materials that are factory cut or otherwise factory formed with the specific intention of being used to fabricate a fenestration product. Knocked down or partially assembled products may be sold as a fenestration product when provided with temporary and permanent labels as described in Section 10-111, or as a site-built fenestration product when not provided with temporary and permanent labels as described in Section 10-111.

    NFRC 100 is the National Fenestration Rating Council document titled “Procedure for Determining Fenestration Product U factors,” (2020) (ANSI/NFRC 100-2020).

    NFRC 200 is the National Fenestration Rating Council document titled “Procedure for Determining Fenestration Product Solar Heat Gain Coefficients and Visible Transmittance at Normal Incidence,” (2020) (ANSI/NFRC 200-2020).

    NFRC 202 is the National Fenestration Rating Council document titled “Procedures for Determining Translucent Fenestration Product Visible Transmittance at Normal Incidence,” (2020) (ANSI/NFRC 202-2020).

    NFRC 203 is the National Fenestration Rating Council document titled “Procedure for Determining Visible Transmittance of Tubular Daylighting Devices,” (2020) (ANSI/NFRC 203-2020).

    16 2025 CALIFORNIA ENERGY CODE

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

    ALL OCCUPANCIES—GENERAL PROVISIONS

    NFRC 400 is the National Fenestration Rating Council document titled “Procedure for Determining Fenestration Product Air Leakage,” (2020) (ANSI/NFRC 400-2020).

    OPERABLE SHADING DEVICE is a device at the interior or exterior of a building or integral with a fenestration product, which is capable of being operated, either manually or automatically, to adjust the amount of solar radiation admitted to the interior of the building.

    RELATIVE SOLAR HEAT GAIN COEFFICIENT (RSHGC) is the ratio of solar heat gain through a fenestration product (corrected for external shading) to the incident solar radiation. Solar heat gain includes directly transmitted solar heat and absorbed solar radiation, which is then reradiated, conducted or convected into the space.

    SITE-BUILT is fenestration designed to be field-glazed or field assembled units using specific factory cut or otherwise factory formed framing and glazing units that are manufactured with the intention of being assembled at the construction site. These include storefront systems, curtain walls and atrium roof systems.

    SKYLIGHT ROOF RATIO (SRR) is the ratio of the skylight area to the gross exterior roof area.

  • § 1114.2 Medium relevance — show source text

    (2) Lithium bromide absorption system using water as the refrigerant.

    1114.2 Design Requirements. Flaring devices shall be designed to incinerate the entire discharge. The products of refrigerant incineration shall not pose health or environmental hazards. Incineration shall be automatic upon initiation of discharge, shall be designed to prevent blow-back, and shall not expose structures or materials to the threat of fire. Standby fuel, such as LP-Gas, and standby power shall have the capacity to operate for one and a half times the required time for complete incineration of the charge.

    1114.3 Testing. Flaring systems shall be tested to demonstrate their safety and effectiveness. A report from an approved agency shall be submitted detailing the emission products from the system as installed.

    1115.0 Labeling and Identification.

    1115.1 General. In addition to labels required elsewhere in this chapter, a refrigeration system shall be provided with identification labels in accordance with Section 1115.2

    through Section 1115.5.

    1115.2 Volume and Type. A condenser, receiver, absorber, accumulator and similar equipment having an internal volume of more than 3 cubic feet (0.1 m [3] ) and containing refrigerant shall be equipped with a permanent label setting forth the type of refrigerant in such vessel.

    1115.3 Permanent Sign. In a refrigeration machinery room and for a direct refrigerating system of more than 10 horsepower (7.5 kW), there shall be a permanent sign at an approved location giving the following information:

    (1) Name of contractor installing the equipment.

    (2) Name and number designation of refrigerant in system.

    (3) Pounds of refrigerant in system.

    1115.4 Marking of Pressure-Relief Devices. Pressurerelief valves for refrigerant containing components shall be set and sealed by the manufacturer or an assembler as defined in ASME BPVC Section VIII.1. Each pressure relief valve shall be marked by the manufacturer or assembler with the data required in ASME BPVC Section VIII.1.

    Exception: Relief valves for systems with design pressures of 15 pounds-force per square inch gauge (psig) (103 kPa gauge) or less shall be marked by the manufacturer with the pressure setting capacity. [ASHRAE 15:9.6.1]

    1115.4.1 Rupture Members. Rupture members for refrigerant pressure vessels shall be marked with the data required in accordance with ASME BPVC Section VIII.1. [ASHRAE 15:9.6.2]

    1115.4.2 Fusible Plugs. Fusible plugs shall be marked with the melting temperatures in °F (°C).

    [ASHRAE 15:9.6.3]

    1115.5 Nameplate. Each self-contained system and each separate condensing unit, compressor, or compressor unit sold for field assembly in a refrigerating system shall carry a nameplate marked with the manufacturer’s name, nationally registered trademark or trade name, identification num

    2025 CALIFORNIA MECHANICAL CODE 245

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

    REFRIGERATION

  • § 10-111 Medium relevance — show source text

    FENESTRATION AREA is the rough opening area of any fenestration product.

    FENESTRATION PRODUCT is any transparent or translucent material plus any sash, frame, mullions and dividers, in the facade of a building, including, but not limited to, windows, glazed doors, skylights, curtain walls, dynamic glazing, garden windows, glass block and glazing used in greenhouses.

    FENESTRATION REPAIR is the reconstruction or renewal for the purpose of maintenance of any fenestration product, component or system and shall not increase the preexisting energy consumption of the repaired fenestration product, component, system or equipment. Replacement of any component, system or equipment for which there are requirements in the Standards are considered an alteration (see Fenestration, alteration) and not a repair and is subject to the requirements of Part 6 of the Standards.

    FIELD-FABRICATED is a fenestration product whose frame is made at the construction site of standard dimensional lumber or other materials that were not previously cut, or otherwise formed with the specific intention of being used to fabricate a fenestration product. Field fabricated does not include site-built fenestration.

    FIN is an opaque surface, oriented vertically and projecting outward horizontally from an exterior vertical surface.

    FIN OFFSET is the horizontal distance from the edge of exposed exterior glazing at the jamb of a window to the fin.

    FIN PROJECTION is the horizontal distance, measured outward horizontally, from the surface of exposed exterior glazing at the jamb of a window to the outward edge of a fin.

    FIXED is fenestration that is not designed to be opened or closed.

    GREENHOUSE or GARDEN WINDOW is a window unit that consists of a three-dimensional, five-sided structure generally protruding from the wall in which it is installed. Operating sash may or may not be included.

    HORIZONTAL SLATS, when referring to a daylighting device, is a set of adjacent surfaces located directly adjacent to vertical fenestration, oriented horizontally and projecting horizontally from its interior or exterior vertical surface.

    INTEGRATED SHADING SYSTEM is a class of fenestration products including an active layer: e.g., shades, louvers, blinds or other materials permanently integrated between two or more glazing layers. The U -factor and/or SHGC and VT of the insulating glass assembly can be altered by reversibly changing the enclosed active layer.

    LIGHT SHELF is an adjacent, opaque surfaced daylighting device located at the sill of clerestory glazing, oriented horizontally and projecting horizontally from an interior or exterior vertical surface.

    MANUFACTURED or KNOCKED DOWN PRODUCT is a fenestration product constructed of materials that are factory cut or otherwise factory formed with the specific intention of being used to fabricate a fenestration product. Knocked down or partially assembled products may be sold as a fenestration product when provided with temporary and permanent labels as described in Section 10-111, or as a site-built fenestration product when not provided with temporary and permanent labels as described in Section 10-111.

    NFRC 100 is the National Fenestration Rating Council document titled “Procedure for Determining Fenestration Product U factors,” (2020) (ANSI/NFRC 100-2020).

    NFRC 200 is the National Fenestration Rating Council document titled “Procedure for Determining Fenestration Product Solar Heat Gain Coefficients and Visible Transmittance at Normal Incidence,” (2020) (ANSI/NFRC 200-2020).

Frequently asked questions

Who must keep the temporary label in place?

The installer or manufacturer must leave the temporary label on manufactured fenestration products and exterior doors until the enforcement agency inspects them — removal before inspection is not allowed. § 110.6(a)5(A)

Can CMA-rated products use a label certificate instead of a physical permanent label?

Yes — the code anticipates the use of label certificates for products certified using the NFRC Component Modeling Approach (CMA). § 110.6(a)5(B) and the CMA/ACE definitions describe this workflow.

Do site-built fenestration products need the same labels as manufactured products?

Site‑built fenestration follows the label certificate provisions in § 10-111(a)1–2; for nonresidential projects a matching label certificate must be accessible on site and a Certificate of Acceptance submitted prior to occupancy. § 110.6(a)5–6

If a product is NFRC-rated, can the builder elect to use default table values instead of the rated values?

No — when a product is NFRC‑rated the rated values are the applicable values for compliance; the default values in Table 110.6‑A/B are for products that are not NFRC‑rated or when the standard allows defaulting. § 110.6 (rating and defaults)

Where can I find the exact list of items required on a permanent label or label certificate?

The code directs you to § 10-111(a)2 for the permanent label / label certificate content. The file excerpts I reviewed reference this section but do not include its full itemized text, so consult the full Title 24, Part 1 text of § 10-111(a)2 for the exact label fields.

More in California Energy Code

Ask about the California Energy Code

Get cited, plain-English answers on the California Energy Code for your project — any code section, any scenario.

Start Free Trial

Related in the California Energy Code

Fenestration labeling: temporary label, label certificate, and permanent label rules

Roofing product certification and 3‑year aged solar reflectance labeling

Product labeling — fenestration, roofing and permanent labels

California Energy Code