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Earlier editions: 20222019

Appendix A5

Section A5.305 — WATER REUSE

California Green Building Standards Code (Title 24, Part 11) · 2025 edition · updated 2026-09-12 · California

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.

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

APPENDIX A5-22 2025 CALIFORNIA GREEN BUILDING STANDARDS CODE

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

CALIFORNIA GREEN BUILDING STANDARDS CODE – MATRIX ADOPTION TABLE

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 DSA OSHPD BSCC DPH AGR DWR CEC CA SL SLC
Adopting agency BSC BSC-
CG		 SFM 1 2 1/AC AC SS 1 1R 2 3 4 5 5 5 5 5 5 5 5 5
Adopt entire CA chapter X
Adopt entire chapter as
amended (amended
sections listed below)
Adopt only those sections
that are listed below
Chapter/Section

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

APPENDIX A5-24 2025 CALIFORNIA GREEN BUILDING STANDARDS CODE

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

A5 NONRESIDENTIAL VOLUNTARY MEASURES

DIVISION A5.4 – MATERIAL CONSERVATION AND RESOURCE EFFICIENCY

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▸Contents — California Green Building Standards Code (Title 24, Part 11)
California Green Building Standards Code (Title 24, Part 11)
  1. Chapter 1 — ADMINISTRATION
  2. Chapter 2 — DEFINITIONS
  3. Chapter 3 — GREEN BUILDING
  4. Chapter 4 — RESIDENTIAL MANDATORY MEASURES
  5. Chapter 4 — RESIDENTIAL MANDATORY MEASURES
  6. Chapter 4 — RESIDENTIAL MANDATORY MEASURES
  7. Chapter 4 — RESIDENTIAL MANDATORY MEASURES
  8. Chapter 4 — RESIDENTIAL MANDATORY MEASURES
  9. Chapter 5 — NONRESIDENTIAL MANDATORY MEASURES
  10. Chapter 5 — NONRESIDENTIAL MANDATORY MEASURES
  11. Chapter 5 — NONRESIDENTIAL MANDATORY MEASURES
  12. Chapter 5 — NONRESIDENTIAL MANDATORY MEASURES
  13. Chapter 5 — NONRESIDENTIAL MANDATORY MEASURES
  14. Chapter 6 — REFERENCED ORGANIZATIONS AND STANDARDS
  15. Chapter 7 — INSTALLER AND SPECIAL INSPECTOR QUALIFICATIONS
  16. Chapter 8 — COMPLIANCE FORMS, WORKSHEETS AND REFERENCE MATERIAL
  17. Appendix A4
  18. ▸Appendix A5
    Overview
    1. Section A5.101 — GENERAL
    2. Section A5.102 — DEFINITIONS
    3. Section A5.103 — SITE SELECTION
    4. Section A5.104 — SITE PRESERVATION
    5. Section A5.105 — DECONSTRUCTION AND REUSE OF EXISTING STRUCTURES
    6. Section A5.106 — SITE DEVELOPMENT
    7. Section A5.107 — BIRD-FRIENDLY BUILDING DESIGN
    8. Section A5.201 — GENERAL
    9. Section A5.202 — DEFINITIONS
    10. Section A5.203 — PERFORMANCE APPROACH
    11. Section A5.204 — MANDATORY REQUIREMENTS FOR ALTERATIONS TO EXI…
    12. Section A5.211 — RESERVED
    13. Section A5.212 — ELEVATORS, ESCALATORS AND OTHER EQUIPMENT
    14. Section A5.213 — ENERGY EFFICIENT FRAMING
    15. Section A5.301 — GENERAL
    16. Section A5.302 — DEFINITIONS
    17. Section A5.303 — INDOOR WATER USE
    18. Section A5.304 — OUTDOOR WATER USE
    19. Section A5.305 — WATER REUSE
    20. Section A5.401 — GENERAL
    21. Section A5.402 — DEFINITIONS
    22. Section A5.403 — FOUNDATION SYSTEMS
    23. Section A5.404 — EFFICIENT FRAMING TECHNIQUES
    24. Section A5.405 — MATERIAL SOURCES
    25. Section A5.406 — ENHANCED DURABILITY AND REDUCED MAINTENANCE
    26. Section A5.408 — CONSTRUCTION WASTE REDUCTION, DISPOSAL AND RE…
    27. Section A5.409 — LIFE CYCLE ASSESSMENT
    28. Section A5.501 — GENERAL
    29. Section A5.502 — DEFINITIONS
    30. Section A5.504 — POLLUTANT CONTROL
    31. Section A5.507 — ENVIRONMENTAL COMFORT
    32. Section A5.508 — OUTDOOR AIR QUALITY
  19. Appendix A6

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