40 C.F.R. § 421.120
Applicability: Description of the secondary silver subcategory.
Cite as 40 C.F.R. § 421.120 (2026)
The provisions of this subpart are applicable to discharges resulting from the production of silver from secondary silver facilities processing photographic and nonphotographic raw materials. [49 FR 8821, Mar. 8, 1984; 49 FR 26739, June 29, 1984]