Regulations last checked for updates: Nov 21, 2024

Title 40 - Protection of Environment last revised: Nov 19, 2024
  • Subpart A - Subpart A—Dimension Stone Subcategory [Reserved]
  • Subpart H - Subpart H—Lightweight Aggregates Subcategory [Reserved]
  • Subpart I - Subpart I—Mica and Sericite Subcategory [Reserved]
  • Subpart P - Subpart P—Trona Subcategory [Reserved]
  • Subpart Q - Subpart Q—Rock Salt Subcategory [Reserved]
  • Subpart T - Subpart T—Mineral Pigments Subcategory [Reserved]
  • Subpart U - Subpart U—Lithium Subcategory [Reserved]
  • Subpart AA - Subpart AA—Fire Clay Subcategory [Reserved]
  • Subpart AB - Subpart AB—Attapulgite and Montmorillonite Subcategory [Reserved]
  • Subpart AC - Subpart AC—Kyanite Subcategory [Reserved]
  • Subpart AD - Subpart AD—Shale and Common Clay Subcategory [Reserved]
  • Subpart AE - Subpart AE—Aplite Subcategory [Reserved]
  • Subpart AG - Subpart AG—Kaolin Subcategory [Reserved]
  • Subpart AH - Subpart AH—Ball Clay Subcategory [Reserved]
  • Subpart AI - Subpart AI—Feldspar Subcategory [Reserved]
  • Subpart AJ - Subpart AJ—Talc, Steatite, Soapstone and Pyrophyllite Subcategory [Reserved]
  • Subpart AK - Subpart AK—Garnet Subcategory [Reserved]
authority: Secs. 301, 304 (b) and (c), Federal Water Pollution Control Act, as amended (33 U.S.C. 1251,1311,1314,86. 816
source: 40 FR 48657, Oct. 16, 1975, unless otherwise noted.