Section A4.602 — RESIDENTIAL OCCUPANCIES APPLICATION

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
Construction Waste Reduction, Disposal and Recycling
4.408.1Recycle and/or salvage for reuse a minimum of 65 percent of the nonhazardous construction and demolition waste in accordance with one of the following: 1. Comply with a more stringent local construction and demolition waste management ordinance; or 2. A construction waste management plan, per Section 4.408.2; or 3. A waste management company, per Section 4.408.3; or 4. The waste stream reduction alternative, per Section 4.408.4.
A4.408.1 Construction waste generated at the site is diverted to recycle or salvage in compliance with one of the following: 1.Tier 1at least a 65 percent reduction with a third-party verification. 2.Tier 2 at least a 75 percent reduction with a third-party verification. Exception:Equivalent waste reduction methods are developed by working with local agencies.		2	2
Building Maintenance and Operation
4.410.1 An operation and maintenance manual shall be provided to the building occupant or owner.
4.410.2 Where 5 or more multifamily dwelling units are constructed on a building site, provide readily accessible areas that serve the entire building and are identified for the depositing, storage and collection of non-hazardous materials for recycling, including (at a minimum) paper, corrugated cardboard, glass, plastics, organic waste, and metals or meet a lawfully enacted local recycling ordinance, if more restrictive. Exception:Rural jurisdictions that meet and apply for the exemption in Public Resources Code Section 42649.82 (a)(2)(A) et seq. will also be exempt from the organic waste portion of this section.
Innovative Concepts and Local Environmental Conditions
A4.411.1Items in this section are necessary to address innovative concepts or local environmental conditions.
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ENVIRONMENTAL QUALITY
Fireplaces
4.503.1Any installed gas fireplace shall be a direct-vent sealed- combustion type. Any installed woodstove or pellet stove shall comply with US EPA New Source Performance Standards (NSPS) emission limits as applicable, and shall have a permanent label indicating they are certified to meet the emission limits. Woodstoves, pellet stoves and fireplaces shall also comply with applicable local ordinances.
Pollutant Control
4.504.1Duct openings and other related air distribution component openings shall be covered during construction.
4.504.2.1Adhesives, sealants and caulks shall be compliant with VOC and other toxic compound limits.
4.504.2.2 Paints, stains and other coatings shall be compliant with VOC limits.
4.504.2.3 Aerosol paints and coatings shall be compliant with product weighted MIR limits for ROC and other toxic compounds.
4.504.2.4Documentation shall be provided to verify that compliant VOC limit finish materials have been used.
4.504.3Carpet and carpet systems shall be compliant with VOC limits.	~~~~			~~~~	~~~~	~~~~
4.504.480 percent of floor area receiving resilient flooring shall comply with specified VOC criteria.
4.504.5Particleboard, medium density fiberboard (MDF) and hardwood plywood used in interior or exterior finish systems shall comply with low formaldehyde emission standards.

APPENDIX A4-28 2025 CALIFORNIA GREEN BUILDING STANDARDS CODE

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

APPENDIX A4 — RESIDENTIAL VOLUNTARY MEASURES