No owner or other person shall cause or permit to be discharged into the atmosphere from any nitric acid production unit any emissions of nitrogen oxides (expressed as nitrogen dioxide) in excess of 5.5 pounds per ton of 100% acid produced.
9 Va. Admin. Code § 5-40-3140
Statutory Authority
§§ 10.1-1307 and 10.1-1308 of the Code of Virginia.