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28 Active / Under Development Chapters and 11 Inactive / Repealed Chapters
VAC Citation	Chapter Title	Last Activity	Date
9 VAC 5‑5	Public Participation Guidelines	Periodic Review Agency Completed	12/22/2021
9 VAC 5‑10	General Definitions	Fast-Track Effective	4/11/2024
9 VAC 5‑20	General Provisions	Final Effective	3/15/2023
9 VAC 5‑30	Ambient Air Quality Standards	Final Effective	9/25/2024
9 VAC 5‑40	Existing Stationary Sources	Fast-Track Effective	4/11/2024
9 VAC 5‑45	Consumer and Commercial Products Regulation	Fast-Track Effective	4/11/2024
9 VAC 5‑50	New and Modified Stationary Sources	Fast-Track Effective	4/11/2024
9 VAC 5‑60	Hazardous Air Pollutant Sources	Fast-Track Effective	4/11/2024
9 VAC 5‑70	Air Pollution Episode Prevention	Periodic Review Agency Completed	9/7/2022
9 VAC 5‑80	Permits for Stationary Sources	Fast-Track Effective	4/11/2024
9 VAC 5‑85	Permits for Stationary Sources of Pollutants Subject to Regulation	Final Effective	11/23/2022
9 VAC 5‑91	Regulations for the Control of Motor Vehicle Emissions in the Northern Virginia Area	Final Effective	9/25/2024
9 VAC 5‑95	Regulation For Low Emissions And Zero Emissions Vehicle Standards	Final Effective	1/12/2024
9 VAC 5‑130	Regulation for Open Burning	Periodic Review Agency Completed	12/9/2019
9 VAC 5‑140	Regulation for Emissions Trading	NOIRA Stage Withdrawn	9/28/2023
9 VAC 5‑145	Regulations for Control of Greenhouse Gases	Final Effective	11/9/2022
9 VAC 5‑151	Regulation for Transportation Conformity	Final Effective	3/4/2020
9 VAC 5‑160	Regulation for General Conformity	Periodic Review Agency Completed	7/1/2020
9 VAC 5‑170	Regulation for General Administration	NOIRA Stage Withdrawn	12/2/2022
9 VAC 5‑190	Variance for Merck Stonewall Plant	Periodic Review Agency Completed	2/28/2020
9 VAC 5‑210	Regulation for Dispute Resolution	Periodic Review Agency Completed	11/25/2019
9 VAC 5‑220	Variance for Rocket Motor Test Operations at Aerojet Rocketdyne, Inc. Orange County Facility	Periodic Review Agency Completed	11/7/2022
9 VAC 5‑230	International Paper Variance (Rev. DV)	Periodic Review Agency Completed	9/18/2020
9 VAC 5‑280	reserved
9 VAC 5‑510	General Permit for Nonmetallic Mineral Mining	Fast-Track Effective	4/11/2024
9 VAC 5‑520	Biomass Energy Generator General Permit for a Pilot Test Facility	Periodic Review Agency Completed	3/1/2023
9 VAC 5‑530	Electric Generator Voluntary Demand Response General Permit	Fast-Track Effective	4/11/2024
9 VAC 5‑540	Emergency Energy Generator General Permit	Fast-Track Effective	4/11/2024
Inactive (Repealed / Renumbered / Withdrawn / Expired)
9 VAC 5‑11	Public Participation Guidelines - See Chapter 05 (Repealed)
9 VAC 5‑90	Regulation for the Control of Motor Vehicle Emissions (Repealed)
9 VAC 5‑100	Regulation for Vehicle Emissions Control Program Analyzer Systems (Repealed)
9 VAC 5‑110	Regulations for the Control of Motor Vehicle Emissions (Repealed)
9 VAC 5‑121	Regulation for the Control of Emissions From Fleet Vehicles (Repealed)
9 VAC 5‑150	Regulation for Transportation Conformity (Repealed)	Periodic Review Agency Completed	4/2/2001
9 VAC 5‑180	Regulation for Mobile Sources (Withdrawn before promulgation)	Proposed Stage Withdrawn	10/16/2001
9 VAC 5‑200	Regulation for National Low Emission Vehicle Program (Repealed)	Periodic Review Agency Completed	5/31/2002
9 VAC 5‑221	Variance for Rocket Motor Test Operations at Atlantic Research Corporation Gainesville Facility (Repealed)	Periodic Review Agency Completed	11/15/2011
9 VAC 5‑240	Variance for Open Burning (Repealed)
9 VAC 5‑500	Exclusionary General Permit for Federal Operating Permit Program (Repealed)	Periodic Review Agency Completed	7/18/2000