Skip to content
ChatProjectCodes

Appendix A4

Section A4.602

California Green Building Standards Code (Title 24, Part 11) · 2019 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
Innovative Concepts and Local
Environmental Conditions
A4.108.1 Items in this section are necessary to address innovative
concepts or local environmental conditions.
Item 1
Item 2
Item 3
ENERGY EFFICIENCY
General
4.201.1 Building meets or exceeds the requirements of the_California_
_Building Energy Efficiency Standards_3.		 2 2
Performance Approach for Newly
Constructed Buildings
A4.203.1.1.1 Tier 1 and Tier 2. Total Energy Design Rating (Total
EDR) and Energy Efficiency Design Rating (Efficiency EDR) for the
Proposed Design Building is included in the Certificate of
Compliance documentation.		 2 2
A4.203.1.1.2 Tier 1 and Tier 2. Quality Insulation Installation
procedures specified in the Building Energy Efficiency Standards
Reference Appendices RA3.5 are completed.		 2 2
A4.203.1.2 Tier 1 and Tier 2 prerequisite options. One of the
following options is required.
**· Roof deck insulation or ducts in conditioned space.
· High-performance walls.
· HERS-verified compact hot water distribution system.
· **HERS-verified drain water heat recovery.		 2 2
A4.203.1.3.1 Tier 1: Buildings complying with the first level of
advanced energy efficiency shall have additional integrated
efficiency and onsite renewable energy generation to achieve a
Total EDR for Tier 1 as specified in Table A4.203.1.1.1 or lower as
calculated by Title 24, Part 6 Compliance Software approved by the
Energy Commission. This Total EDR is in addition to meeting the
Efficiency EDR.		 2
A4.203.1.3.2 **Tier 2:**Buildings complying with the second level of
advanced energy efficiency shall have additional integrated
efficiency and onsite renewable energy generation to achieve a Total
EDR for Tier 2 as specified in Table A4.203.1.1.1 or lower as
calculated by Title 24, Part 6 Compliance Software approved by the
Energy Commission. This Total EDR is in addition to meeting the
Efficiency EDR.		 2
A4.203.1.4 Local jurisdictions adopting Tier 1 or Tier 2, or
considering community shared solar or storage options as specified,
shall consult with the local electric service for acceptance.		 2 2

continued

118 2019 CALIFORNIA GREEN BUILDING STANDARDS CODE

Copyright © 2019 ICC. ALL RIGHTS RESERVED. Accessed by Kevin Day (kevin.day@dgs.ca.gov), (California Building Standards Commission) Order Number #100735044 on Jul 24, 2019 03:54 PM (PDT) pursuant to License Agreement with ICC. No further reproduction or distribution authorized. Single user only, copying and networking prohibited. 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.

100735044

RESIDENTIAL VOLUNTARY MEASURES

Get a plain-English answer with a citation back to this text.

Ask AI about this code
Export this section
▸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 A4.305
    13. Section A4.306
    14. Section A4.301
    15. Section A4.302
    16. Section A4.303
    17. Section A4.304
    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

GoCodebook provides public access, search, citation, multilingual explanation, and practical interpretation of legally adopted building regulations. It is not a substitute for the official ICC or California code publications.