{"data":{"id":"us-va/9vac5-20-204","jurisdiction":"us-va","citation":"9VAC5-20-204","heading":"Nonattainment areas","body":"A. Nonattainment areas are geographically defined in this subsection by locality for the criteria pollutants indicated. Following the name of each ozone nonattainment area, in parentheses, is the classification assigned pursuant to § 181(a) of the federal Clean Air Act (42 USC § 7511(a)), 40 CFR 51.903(a), and 40 CFR 51.1103(a).\n\n1. Ozone (1-hour).\n\nNorthern Virginia Ozone Nonattainment Area (severe).\n\nArlington County\n\nFairfax County\n\nLoudoun County\n\nPrince William County\n\nStafford County\n\nAlexandria City\n\nFairfax City\n\nFalls Church City\n\nManassas City\n\nManassas Park City\n\n2. Ozone (8-hour, 0.08 ppm).\n\nNorthern Virginia Ozone Nonattainment Area (moderate).\n\nArlington County\n\nFairfax County\n\nLoudoun County\n\nPrince William County\n\nAlexandria City\n\nFairfax City\n\nFalls Church City\n\nManassas City\n\nManassas Park City\n\n3. Ozone (8-hour, 0.075 ppm).\n\nNorthern Virginia Ozone Nonattainment Area (marginal).\n\nArlington County\n\nFairfax County\n\nLoudoun County\n\nPrince William County\n\nAlexandria City\n\nFairfax City\n\nFalls Church City\n\nManassas City\n\nManassas Park City\n\n4. Ozone (8-hour, 0.070 ppm).\n\nNorthern Virginia Ozone Nonattainment Area (marginal).\n\nArlington County\n\nFairfax County\n\nLoudoun County\n\nPrince William County\n\nAlexandria City\n\nFairfax City\n\nFalls Church City\n\nManassas City\n\nManassas Park City\n\n5. Sulfur dioxide.\n\nGiles County Sulfur Dioxide Nonattainment Area (part).\n\nThat part of Giles County bounded by the lines connecting the coordinate points as designated in 40 CFR 81.347.\n\n6. All other pollutants.\n\nNone.\n\nB. Subdivision A 1 of this section shall not be effective after June 15, 2005.","path":["Title 9. Environment","Agency 5. State Air Pollution Control Board","Chapter 20. General Provisions","Part II. Air Quality Programs"],"source_url":"https://law.lis.virginia.gov/admincode/title9/agency5/chapter20/section204/","current_through":"2026 Regular Session (effective July 1, 2026)","vintage":"","retrieved_at":"2026-09-14T04:48:02Z","sha256":"a04aa04bc000825f50f08846e59f56b80d9ceb99c624dfcf7119d4d74c321bfc","source_id":"us-va-vac","stale":false,"prev":"us-va/9vac5-20-203","next":"us-va/9vac5-20-205"},"notice":"GroundRules: Original legal text. Not legal advice."}