Section A4.506 — INDOOR AIR QUALITY AND EXHAUST — 2025 California Green Building Standards Code (Title 24, Part 11)

A4.506.1 Reserved. A4.506.2 Construction filter. [HR] Provide filters on return air openings rated at MERV 8 or higher during construction. A4.506.3 Direct-vent appliances. Direct-vent heating and cooling equipment shall be utilized if the equipment will be located in the conditioned space or install the space heating and water heating equipment in an isolated mechanical room. on Jul 18, 2025 11:14 AM (CDT) THEREUNDER. APPENDIX A4 — RESIDENTIAL VOLUNTARY MEASURES

provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement review coverage subject setback occupancy development standard accessory yard section structure compliance use provision permitted lot commission district approval parking minimum height dwelling application requirement

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