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Office of Planning, Environment, & Realty (HEP)

Policy & Guidance

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All Documents

A variety of guidance documents pertaining to transportation conformity have been issued by FHWA, FTA, EPA, an doccasionally, jointly issued by these agencies. These documents cover a wide range of subject areas. Note that these guidance documents are not a substitute for any laws or regulations, thus do not impose legally binding requirements on EPA, DOT, states, or the regulated community. In addition, they may not apply to a particular situation based upon the circumstances. EPA and DOT retain the discretion to adopt approaches on a case-by-case basis that may differ from this guidance, but still comply with the statutes and SIP, conformity, and planning regulations.

Archived Guidance

Superseded Guidance

Updated: 9/20/2016
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