Code of Federal Regulations > Title 40 > Chapter I > Part 93 > Subpart B - Subpart B—Determining Conformity of General Federal Actions to State or Federal Implementation Plans

U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

§ 93.150 - Prohibition.

§ 93.151 - State implementation plan (SIP) revision.

§ 93.152 - Definitions.

§ 93.153 - Applicability.

§ 93.154 - Federal agency conformity responsibility.

§ 93.155 - Reporting requirements.

§ 93.156 - Public participation.

§ 93.157 - Reevaluation of conformity.

§ 93.158 - Criteria for determining conformity of general Federal actions.

§ 93.159 - Procedures for conformity determinations of general Federal actions.

§ 93.160 - Mitigation of air quality impacts.

§ 93.161 - Conformity evaluation for Federal installations with facility-wide emission budgets.

§ 93.162 - Emissions beyond the time period covered by the SIP.

§ 93.163 - Timing of offsets and mitigation measures.

§ 93.164 - Inter-precursor mitigation measures and offsets.

§ 93.165 - Early emission reduction credit programs at Federal facilities and installation subject to Federal oversight.