40 CFR 421.120 - Applicability: Description of the secondary silver subcategory.
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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]
Title 40 published on 2013-07-01
no entries appear in the Federal Register after this date.