40 C.F.R. § 418.50
Applicability; description of the nitric acid subcategory.
Cite as 40 C.F.R. § 418.50 (2026)
The provisions of this subpart are applicable to discharges resulting from production of nitric acid in concentrations up to 68 percent. Discharges from shipping losses are excluded. [41 FR 2387, Jan. 1, 1976]