120.0 General — 2025 California Energy Code

California Energy Code (Title 24, Part 6) · 2025 edition · updated 2026-09-24 · California

CBSC: official editions, supplements and errata

Cite as: 2025 California Energy Code (Title 24, Part 6) § 120.0 · Effective January 1, 2026 · Official source: Building Standards Commission

Sections 120.1 through 120.10 establish requirements for the design and installation of building envelopes, ventilation, space-conditioning and service water-heating systems and equipment in nonresidential and hotel/motel buildings as well as covered processes that are within the scope of Section 100.0(a).

Note: The requirements of Sections 120.1 through 120.10 apply to newly constructed buildings. Section 141.0 specifies which requirements of Sections 120.1 through 120.10 also apply to additions or alterations to existing buildings.

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, 25402.8, and 25943, Public Resources Code.

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▸Contents — California Energy Code (Title 24, Part 6)

California Energy Code (Title 24, Part 6)

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