A5.305 Water Reuse — 2025 California Green Building Standards Code
California Green Building Standards Code (Title 24, Part 11) · 2025 edition · updated 2026-10-19 · California
Cite as: 2025 California Green Building Standards Code (Title 24, Part 11) § A5.305 · Effective January 1, 2026 · Official source: Building Standards Commission
A5.305.1 Nonpotable water systems. Nonpotable water systems for indoor and outdoor use shall comply with the current edition of the California Plumbing Code.
A5.305.2 Irrigation systems. Irrigation systems regulated by a local water efficient landscape ordinance or by the California Department of Water Resources Model Water Efficient Landscape Ordinance (MWELO) shall use recycled water.
APPENDIX A5 – NONRESIDENTIAL VOLUNTARY MEASURES
DIVISION A5.4 – MATERIAL CONSERVATION AND RESOURCE EFFICIENCY
(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 | BSC-CG | SFM | HCD 1 | HCD 2 | HCD 1/AC | DSA AC | DSA SS | OSHPD 1 | OSHPD 1R | OSHPD 2 | OSHPD 3 | OSHPD 4 | OSHPD 5 | BSCC | DPH | AGR | DWR | CEC | CA | SL | SLC |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Adopt entire CA chapter | X | |||||||||||||||||||||
| Adopt entire chapter as amended (amended sections listed below) | ||||||||||||||||||||||
| Adopt only those sections that are listed below | ||||||||||||||||||||||
| Chapter/ |
A5 NONRESIDENTIAL VOLUNTARY MEASURES
DIVISION A5.4 – MATERIAL CONSERVATION AND RESOURCE EFFICIENCY
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