{"data":{"id":"us-va/9vac5-80-1645","jurisdiction":"us-va","citation":"9VAC5-80-1645","heading":"Ambient air ceilings","body":"No concentration of a pollutant shall exceed:\n\n1. The concentration permitted under the secondary ambient air quality standard, or\n\n2. The concentration permitted under the primary ambient air quality standard, whichever concentration is lowest for the pollutant for a period of exposure.","path":["Title 9. Environment","Agency 5. State Air Pollution Control Board","Chapter 80. Permits for Stationary Sources","Part II. Permit Procedures","Article 8. Permits for Major Stationary Sources and Major Modifications Locating in Prevention of Significant Deterioration Areas"],"source_url":"https://law.lis.virginia.gov/admincode/title9/agency5/chapter80/section1645/","current_through":"2026 Regular Session (effective July 1, 2026)","vintage":"","retrieved_at":"2026-09-14T04:48:37Z","sha256":"8f8578d82342972e7a0065bee3018c3eb6ec5f955832e39f46fb3da4254d14d5","source_id":"us-va-vac","stale":false,"prev":"us-va/9vac5-80-1635","next":"us-va/9vac5-80-1655"},"notice":"GroundRules: Original legal text. Not legal advice."}