40 C.F.R. § 418.20
Applicability; description of the ammonia subcategory.
Cite as 40 C.F.R. § 418.20 (2026)
The provisions of this subpart are applicable to discharges resulting from the manufacture of ammonia. Discharges attributable to shipping losses and cooling tower blowdown are excluded. [44 FR 64081, Nov. 6, 1979]