408A Plumbing — 2025 California Existing Building Code

408 A .1 Materials. Plumbing materials and supplies shall not be used for repairs that are prohibited in the Title 24 Part 5 California Plumbing Code (CPC).

408 A .2 Water closet replacement. The maximum water consumption flow rates and quantities for all replaced water closets shall be 1.28 gallons ( 4.8 L) per flushing cycle.

408 A .3 Health care facilities. Portions of medical gas systems being repaired in Group I-2, ambulatory care facilities and outpatient clinics shall comply with NFPA 99 requirements for repairs.

CHAPTER 5 – PRESCRIPTIVE COMPLIANCE METHOD

(Matrix Adoption Tables are nonregulatory, intended only as an aid to the code user. See Chapter 1 for state agency authority and building applications.)

Adopting Agency	BSC	SFM	HCD 1	HCD 2	HCD 1/AC	DSA SS	DSA SS/CC	OSHPD 1R	OSHPD 2	OSHPD 3	OSHPD 4	OSHPD 5	OSHPD 6
Adopt Entire Chapter										X			X
Adopt Entire Chapter as amended (amended sections listed below)			X	X	X
Adopt only those sections that are listed below	X	X				X	X	X	X		X	X
Chapter / Section
501								X	X		X	X
501.1	X		X	X
501.1 –501.3		X
501.1.2	X
501.3			†	†	†
501.4 – 501.5.1		X
501.5			X
502								X	X		X	X
502.1	X	X	X	X
502.1.2		X
502.2 –502.3	X
502.5	X	X	†	†	†
502.6			†	†	†
503								X	X		X	X
503.1	X	X
503.2	X
503.3	X					X	X
503.14		X	†	†	†
503.15		X
503.16 –503.17		X	†	†	†
503.18			†	†	†
503.19		X	†	†	†
503.20		X
504		X	†	†	†			X	X		X	X
505		X						X	X		X	X
505.2			X	X
506								X	X		X	X
506.1 –506.1.1	X	X
506.1.2								X	X		X	X
506.2 – 506.3	X	X
506.4		X
506.5 Exception	X
506.6			†	†	†

The state agency does not adopt sections identified with the following symbol: The Office of the State Fire Marshal’s adoption of this chapter or individual sections is applicable to structures regulated by other state agencies pursuant to Section 1.11.