- 23 CFR Part 771, Environmental Impact and Related Procedures; Notice of Proposed Rulemaking (or PDF, 114KB); August 7, 2007, Federal Register
- 23 CFR 450 - October 16, 2001
- Deadline for New Planning Requirements (July 1, 2007) - May 2, 2006
- Guidance for Qualitative Project Level "Hot-Spot" Analysis in PM10 Nonattainment and Maintenance Areas - September 12, 2001
- FHWA/FTA Guidance on Designation and Redesignation of Metropolitan Planning Organizations - March 30, 2005
- FTA/FHWA Preliminary Guidance on Annual Listing of Obligated Projects February 24, 2006
- Interim FHWA/FTA Guidance on Fiscal Constraint for STIPs, TIPs, and Metro Plans - June 27, 2005
- Interim Guidance for Implementing the Transportation Conformity Provisions in SAFETEA-LU - February 14, 2006
- Planning & Environment Linkages Implementation Resources
- Planning Horizons for Metropolitan Long-Range Transportation Plans - April 12, 2005
- Program Guidance on Linking the Transportation Planning and NEPA Processes - February 23, 2005
- Questions And Answers On Financial Plans/Fiscal Constraint For Transportation Plans And Programs - January 17, 2008
- SAFETEA-LU: Interim Guidance for Implementing Key SAFETEA-LU Provisions on Planning, Environment, and Air Quality for Joint FHWA/FTA Authorities - September 2, 2005
- SAFETEA-LU: Interim Guidance for Implementing SAFETEA-LU Provisions on Planning, Environment, and Air Quality for FHWA Authorities - September 2, 2005
- Transition and Implementation of SAFETEA-LU Planning Provisions December 8, 2005