40 CFR 436.40 - Applicability; description of the industrial sand subcategory.
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The provisions of this subpart are applicable to the mining and the processing of sand and gravel for uses other than construction and fill. These uses include, but are not limited to glassmaking, molding, abrasives, filtration, refractories, and refractory bonding.
Title 40 published on 2013-07-01
no entries appear in the Federal Register after this date.