40 CFR 436.180 - Applicability; description of the phosphate rock subcategory.
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The provisions of this subpart are applicable to the mining and the processing of phosphate bearing rock, ore or earth for the phosphate content.
[43 FR 9809, Mar. 10, 1978]
Title 40 published on 2013-07-01
no entries appear in the Federal Register after this date.