Can a Tribe appeal a denial?
Primary source
Verbatim text below is from the Electronic Code of Federal Regulations (eCFR), a public-domain U.S. government work. Always verify the current version with the eCFR before relying on it for any legal matter.
Full Text
Yes. Tribes may appeal the denial of a design exception to: FHWA Office of Federal Lands Highway, 1200 New Jersey Ave. SE., HFL-1, Washington, DC 20590. If FHWA denies a design exception, the Tribe may appeal the decision Office of the FHWA Administrator, 1200 New Jersey Ave. SE., HOA-1, Washington, DC 20590.
This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.