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FEDERAL · 40 CFR

Part 93 — Determining Conformity of Federal Actions to State or Federal Implementation Plans

46 sections · Title 40: Protection of Environment

§ 93.100Purpose.
§ 93.101Definitions.
§ 93.102Applicability.
§ 93.103Priority.
§ 93.104Frequency of conformity determinations.
§ 93.105Consultation.
§ 93.106Content of transportation plans and timeframe of conformity determinations.
§ 93.107Relationship of transportation plan and TIP conformity with the NEPA process.
§ 93.108Fiscal constraints for transportation plans and TIPs.
§ 93.109Criteria and procedures for determining conformity of transportation plans, programs, and projects: General.
§ 93.110Criteria and procedures: Latest planning assumptions.
§ 93.111Criteria and procedures: Latest emissions model.
§ 93.112Criteria and procedures: Consultation.
§ 93.113Criteria and procedures: Timely implementation of TCMs.
§ 93.114Criteria and procedures: Currently conforming transportation plan and TIP.
§ 93.115Criteria and procedures: Projects from a transportation plan and TIP.
§ 93.116Criteria and procedures: Localized CO, PM<sub>10</sub>, and PM<sub>2.5</sub> violations (hot-spots).
§ 93.117Criteria and procedures: Compliance with PM<sub>10</sub> and PM<sub>2.5</sub> control measures.
§ 93.118Criteria and procedures: Motor vehicle emissions budget.
§ 93.119Criteria and procedures: Interim emissions in areas without motor vehicle emissions budgets.
§ 93.120Consequences of control strategy implementation plan failures.
§ 93.121Requirements for adoption or approval of projects by other recipients of funds designated under title 23 U.S.C. or the Federal Transit Laws.
§ 93.122Procedures for determining regional transportation-related emissions.
§ 93.123Procedures for determining localized CO, PM<sub>10</sub>, and PM<sub>2.5</sub> concentrations (hot-spot analysis).
§ 93.124Using the motor vehicle emissions budget in the applicable implementation plan (or implementation plan submission).
§ 93.125Enforceability of design concept and scope and project-level mitigation and control measures.
§ 93.126Exempt projects.
§ 93.127Projects exempt from regional emissions analyses.
§ 93.128Traffic signal synchronization projects.
§ 93.129Special exemptions from conformity requirements for pilot program areas.
§ 93.150Prohibition.
§ 93.151State implementation plan (SIP) revision.
§ 93.152Definitions.
§ 93.153Applicability.
§ 93.154Federal agency conformity responsibility.
§ 93.155Reporting requirements.
§ 93.156Public participation.
§ 93.157Reevaluation of conformity.
§ 93.158Criteria for determining conformity of general Federal actions.
§ 93.159Procedures for conformity determinations of general Federal actions.
§ 93.160Mitigation of air quality impacts.
§ 93.161Conformity evaluation for Federal installations with facility-wide emission budgets.
§ 93.162Emissions beyond the time period covered by the SIP.
§ 93.163Timing of offsets and mitigation measures.
§ 93.164Inter-precursor mitigation measures and offsets.
§ 93.165Early emission reduction credit programs at Federal facilities and installation subject to Federal oversight.