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Appendix A4

Section A4.602

California Green Building Standards Code (Title 24, Part 11) · 2022 edition · updated 2026-09-12 · California

RESIDENTIAL OCCUPANCIES APPLICATION CHECKLIST—continued

FEATURE OR MEASURE LEVELS
APPLICANT TO SELECT ELECTIVE MEASURES		 VERIFICATIONS
ENFORCING AGENCY TO SPECIFY
VERIFICATION METHOD
FEATURE OR MEASURE
 Mandatory Prerequisites and electives1 Prerequisites and electives1 Enforcing
Agency

All		 Installer or
Designer

All		 Third
party

All
FEATURE OR MEASURE
 Mandatory Tier 1 Tier 2 Tier 2 Tier 2 Tier 2
Water Reuse Systems
A4.305.1Piping is installed to permit future use of a graywater
irrigation system served by the clothes washer or other fixtures.
A4.305.2 Recycled water piping is installed.
A4.305.3Recycled water is used for landscape irrigation.
Innovative Concepts and Local Environmental Conditions
A4.306.1Items in this section are necessary to address innovative
concepts or local environmental conditions.
Item 1
Item 2
Item 3
MATERIAL CONSERVATION AND RESOURCE
EFFICIENCY
Foundation Systems
A4.403.1A Frost-protected Shallow Foundation (FPSF) is designed
and constructed.
A4.403.2Cement use in foundation mix design is reduced.
Tier 1. Not less than a 20 percent reduction in cement use.
**Tier 2.**Not less than a 25 percent reduction in cement use.		 2 2
Efficient Framing Techniques
A4.404.1 Beams and headers and trimmers are the minimum size to
adequately support the load.
A4.404.2Building dimensions and layouts are designed to minimize
waste.
A4.404.3Use premanufactured building systems to eliminate solid
sawn lumber whenever possible.
A4.404.4 Material lists are included in the plans which specify
material quantity and provide direction for on-site cuts.

continued

APPENDIX A4-24 2022 CALIFORNIA GREEN BUILDING STANDARDS CODE

Copyright © 2022 by, or licensed to, International Code Council, Inc. (ALL RIGHTS RESERVED); licensed to California Building Standards Commission pursuant to License Agreement. No further reproductions is authorized. Any unauthorized reproduction or distribution is a violation of the federal copyright act and the license agreement, and subject to civil and criminal penalties thereunder.

APPENDIX A4—RESIDENTIAL VOLUNTARY MEASURES

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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 5 — NONRESIDENTIAL MANDATORY MEASURES
  6. Chapter 6 — REFERENCED ORGANIZATIONS AND STANDARDS
  7. Chapter 7 — INSTALLER AND SPECIAL INSPECTOR QUALIFICATIONS
  8. Chapter 8 — COMPLIANCE FORMS, WORKSHEETS AND REFERENCE MATERIAL
  9. ▸Appendix A4
    Overview
    1. Section A4.101
    2. Section A4.102
    3. Section A4.103
    4. Section A4.104
    5. Section A4.105
    6. Section A4.106
    7. Section A4.107
    8. Section A4.108
    9. Section A4.201
    10. Section A4.202
    11. Section A4.203
    12. Section A4.301
    13. Section A4.302
    14. Section A4.303
    15. Section A4.304
    16. Section A4.305
    17. Section A4.306
    18. Section A4.401
    19. Section A4.402
    20. Section A4.403
    21. Section A4.404
    22. Section A4.405
    23. Section A4.406
    24. Section A4.407
    25. Section A4.408
    26. Section A4.409
    27. Section A4.410
    28. Section A4.411
    29. Section A4.501
    30. Section A4.502
    31. Section A4.503
    32. Section A4.504
    33. Section A4.505
    34. Section A4.506
    35. Section A4.507
    36. Section A4.508
    37. Section A4.509
    38. Section A4.601
    39. Section A4.602
    40. Section A4.602
    41. Section A4.602
    42. Section A4.602
    43. Section A4.602
    44. Section A4.602
    45. Section A4.602
    46. Section A4.602
    47. Section A4.602
    48. Section A4.602
  10. Appendix A5

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