USA Banner

Official US Government Icon

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure Site Icon

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Site Notification

Site Notification

U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

FHWA/FTA Clarifying Guidance on Implementation of SAFETEA-LU Planning Provisions

The clarifying guidance has been superseded by the updated planning regulation at:


Statewide Transportation Planning; Metropolitan Transportation Planning; Final Rule
[HTML text version of Federal Register] or [PDF version of Federal Register]

The updated air quality conformity reguation is available at:
EPA Transportation Conformity Regulations as of January 2008 (PDF)

For more informtion contact

Charlie Goodman, Office of Systems Planning (transportation planning issues)

Faith Cole, Office of Human and Natural Environment (transportation conformity issues)