§ 436.40 Applicability; description of the industrial sand subcategory.
Current through Aug 22, 2025 · Read all of Part 436
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.