Part 93 — Determining Conformity of Federal Actions to State or Federal Implementation Plans
Subpart A — Conformity to State or Federal Implementation Plans of Transportation Plans, Programs, and Projects Developed, Funded or Approved Under Title 23 U.S.C. or the Federal Transit Laws
- § 93.100— Purpose.
- § 93.101— Definitions.
- § 93.102— Applicability.
- § 93.103— Priority.
- § 93.104— Frequency of conformity determinations.
- § 93.105— Consultation.
- § 93.106— Content of transportation plans and timeframe of conformity determinations.
- § 93.107— Relationship of transportation plan and TIP conformity with the NEPA process.
- § 93.108— Fiscal constraints for transportation plans and TIPs.
- § 93.109— Criteria and procedures for determining conformity of transportation plans, programs, and projects: General.
- § 93.110— Criteria and procedures: Latest planning assumptions.
- § 93.111— Criteria and procedures: Latest emissions model.
- § 93.112— Criteria and procedures: Consultation.
- § 93.113— Criteria and procedures: Timely implementation of TCMs.
- § 93.114— Criteria and procedures: Currently conforming transportation plan and TIP.
- § 93.115— Criteria and procedures: Projects from a transportation plan and TIP.
- § 93.116— Criteria and procedures: Localized CO, PM<sub>10</sub>, and PM<sub>2.5</sub> violations (hot-spots).
- § 93.117— Criteria and procedures: Compliance with PM<sub>10</sub> and PM<sub>2.5</sub> control measures.
- § 93.118— Criteria and procedures: Motor vehicle emissions budget.
- § 93.119— Criteria and procedures: Interim emissions in areas without motor vehicle emissions budgets.
- § 93.120— Consequences of control strategy implementation plan failures.
- § 93.121— Requirements for adoption or approval of projects by other recipients of funds designated under title 23 U.S.C. or the Federal Transit Laws.
- § 93.122— Procedures for determining regional transportation-related emissions.
- § 93.123— Procedures for determining localized CO, PM<sub>10</sub>, and PM<sub>2.5</sub> concentrations (hot-spot analysis).
- § 93.124— Using the motor vehicle emissions budget in the applicable implementation plan (or implementation plan submission).
- § 93.125— Enforceability of design concept and scope and project-level mitigation and control measures.
- § 93.126— Exempt projects.
- § 93.127— Projects exempt from regional emissions analyses.
- § 93.128— Traffic signal synchronization projects.
- § 93.129— Special exemptions from conformity requirements for pilot program areas.
Subpart B — Determining Conformity of General Federal Actions to State or Federal Implementation Plans
- § 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.