Code of Federal Regulations > Title 40 > Chapter I > Part 63 > Subpart E - Subpart E—Approval of State Programs and Delegation of Federal Authorities

U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

§ 63.90 - Program overview.

§ 63.91 - Criteria for straight delegation and criteria common to all approval options.

§ 63.92 - Approval of State requirements that adjust a section 112 rule.

§ 63.93 - Approval of State requirements that substitute for a section 112 rule.

§ 63.94 - Approval of State permit terms and conditions that substitute for a section 112 rule.

§ 63.95 - Additional approval criteria for accidental release prevention programs.

§ 63.96 - Review and withdrawal of approval.

§ 63.97 - Approval of a State program that substitutes for section 112 requirements.

§ 63.98 - [Reserved]

§ 63.99 - Delegated Federal authorities.