{"data":{"id":"us-va/9vac5-40-8050","jurisdiction":"us-va","citation":"9VAC5-40-8050","heading":"Standard for nitrogen oxides","body":"No owner or other person shall cause or permit to be discharged into the atmosphere from any affected facility any gases that contain nitrogen oxides in excess of the following limits:\n\n1. For facilities not engaged in an emissions averaging plan as described in 9VAC5-40-8100 D:\n\na. For mass burn waterwall units: 205 parts per million by volume corrected to 7.0% oxygen, dry basis.\n\nb. For mass burn rotary waterwall units: 250 parts per million by volume corrected to 7.0% oxygen, dry basis.\n\nc. For refuse-derived fuel combustors: 250 parts per million by volume corrected to 7.0% oxygen, dry basis.\n\nd. For fluidized bed combustors: 180 parts per million by volume corrected to 7.0% oxygen, dry basis.\n\ne. For mass burn refractory combustors: no limit.\n\n2. For facilities engaged in an emissions averaging plan as described in 9VAC5-40-8100 D:\n\na. For mass burn waterwall units: 185 parts per million by volume, corrected to 7.0% oxygen, dry basis.\n\nb. For mass burn rotary waterwall units: 220 parts per million by volume, corrected to 7.0% oxygen, dry basis.\n\nc. For refuse-derived fuel combustors: 230 parts per million by volume, corrected to 7.0% oxygen, dry basis.\n\nd. For fluidized bed combustors: 165 parts per million by volume, corrected to 7.0% oxygen, dry basis.","path":["Title 9. Environment","Agency 5. State Air Pollution Control Board","Chapter 40. Existing Stationary Sources","Part II. Emission Standards","Article 54. Emission Standards for Large Municipal Waste Combustors (Rule 4-54)"],"source_url":"https://law.lis.virginia.gov/admincode/title9/agency5/chapter40/section8050/","current_through":"2026 Regular Session (effective July 1, 2026)","vintage":"","retrieved_at":"2026-09-14T04:48:20Z","sha256":"e6e293603a76a9e34aed6aa0c70206b417debb54ae522fd2301dc842c7ee60fb","source_id":"us-va-vac","stale":false,"prev":"us-va/9vac5-40-8040","next":"us-va/9vac5-40-8060"},"notice":"GroundRules: Original legal text. Not legal advice."}