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Chapter 2 — ALL OCCUPANCIES—MANDATORY REQUIREMENTS FOR THE MANUFACTURE, CONSTRUCTION AND INSTALLATION OF SYSTEMS, EQUIPMENT AND BUILDING COMPONENTS

Section 110.0 — SYSTEMS AND EQUIPMENT—GENERAL

2025 California Energy Code (Title 24, Part 6) · 2025 edition · updated 2026-07-25 · California

Sections 110.1 through 110.12 specify requirements for manufacturing, construction and installation of certain systems, equipment, appliances and building components that are installed in buildings within the scope of Section 100.0(a).

Note: The requirements of Sections 110.0 through 110.12 apply to newly constructed buildings. Sections 141.0 and 150.2 specify which requirements of Sections 110.1 through 110.12 also apply to additions and alterations to existing buildings.

(a) General Requirements. Systems, equipment, appliances and building components shall only be installed in a building within the scope of Section 100.0(a) regulated by Part 6 only if:

  1. The manufacturer has certified that the system, equipment, appliances or building component complies with the applicable manufacturing provisions of Sections 110.1 through 110.12; and
  2. The system, equipment, appliance or building component complies with all applicable installation provisions of Sections 110.1 through 110.12.

(b) Certification Requirements for Manufactured Systems, Equipment, Appliances and Building Components.

  1. Appliances that are within the scope of Section 1601 of the Appliance Efficiency Regulations shall only be installed if they have been certified to the Energy Commission by the manufacturer, pursuant to the provisions of Title 20 California Code of Regulations, Section 1606; or
  2. Systems, equipment, appliances and building components that are required by Part 6 or the Reference Appendices to be certified to the Energy Commission, which are not appliances that are within the scope of Section 1601 of the Appliance Efficiency Regulations, shall only be installed if they are certified by the manufacturer in a declaration, executed under penalty of perjury under the laws of the State of California, that: A. All the information provided pursuant to the certification is true, complete, accurate and in compliance with all applicable requirements of Part 6; and B. The equipment, product, or device was tested using the test procedure specified in Part 6 if applicable
  3. The certification status of any system, equipment, appliance or building component shall be confirmed only by reference to: A. A directory published or approved by the Commission; or B. A copy of the application for certification from the manufacturer and the letter of acceptance from the Commission staff; or C. Written confirmation from the publisher of a Commission-approved directory that a device has been certified; or D. A Commission-approved label on the device.

Note: Part 6 does not require a builder, designer, owner, operator, or enforcing agency to test any certified device to determine its compliance with minimum specifications or efficiencies adopted by the Commission.

Note: Authority: Sections 25213, 25218, 25218.5, 25402 and 25402.1, Public Resources Code . Reference: Sections 25007, 25008, 25218.5, 25310, 25402, 25402.1, 25402.4, 25402.5 , 2 5402.8, and 25943, Public Resources Code.

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Contents — 2025 California Energy Code (Title 24, Part 6)
2025 California Energy Code (Title 24, Part 6)
  1. Chapter 1 — ALL OCCUPANCIES—GENERAL PROVISIONS
  2. Chapter 2 — ALL OCCUPANCIES—MANDATORY REQUIREMENTS FOR THE MAN…
  3. Chapter 3 — NONRESIDENTIAL, HOTEL/MOTEL OCCUPANCIES, AND COVER…
  4. Chapter 4 — NONRESIDENTIAL AND HOTEL/MOTEL OCCUPANCIES—MANDATO…
  5. Chapter 5 — NONRESIDENTIAL AND HOTEL/MOTEL OCCUPANCIES—PERFORM…
  6. Chapter 6 — NONRESIDENTIAL AND HOTEL/MOTEL OCCUPANCIES—
  7. Chapter 7 — SINGLE-FAMILY RESIDENTIAL BUILDINGS—
  8. Chapter 8 — SINGLE-FAMILY RESIDENTIAL BUILDINGS—PERFORMANCE AN…
  9. Chapter 9 — SINGLE-FAMILY RESIDENTIAL BUILDINGS—ADDITIONS AND …
  10. Chapter 10 — MULTIFAMILY BUILDINGS—MANDATORY REQUIREMENTS
  11. Chapter 11 — MULTIFAMILY BUILDINGS—PERFORMANCE AND PRESCRIPTIV…
  12. Chapter 12 — MULTIFAMILY BUILDINGS—ADDITIONS, ALTERATIONS AND …

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