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25 CFR § 170.6Chapter I

Acronyms

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

AASHTO—American Association of State Highway and Transportation Officials.

ADR—Alternate dispute resolution

ANCSA—Alaska Native Claims Settlement Act

BIA—Bureau of Indian Affairs, Department of the Interior.

BIADOT—Bureau of Indian Affairs, Indian Services—Division of Transportation—Central Office.

CFR—Code of Federal Regulations.

DOI—Department of the Interior.

DOT—Department of Transportation.

FHWA—Federal Highway Administration, Department of Transportation.

FTA—Federal Transit Administration, Department of Transportation.

ISDEAA—Indian Self-Determination and Education Assistance Act of 1975, Public Law 93-638, as amended.

LRTP—Long-range transportation plan.

MUTCD—Manual of Uniform Traffic Safety Devices

NBTI—National Bridge and Tunnel Inventory.

NEPA—National Environmental Policy Act

NTTFI—National Tribal Transportation Facility Inventory.

PM&O—Program management and oversight.

PS&E—Plans, specifications and estimates

STIP—Statewide Transportation Improvement Program.

TTAC—Tribal Technical Assistance Center

TTIP—Tribal Transportation Improvement Program.

TTP—Tribal Transportation Program.

TTP-S—TTP—Safety

TTPTIP—Tribal Transportation Program Transportation Improvement Program.

U.S.C.—United States Code

eCFR data current as of: November 5, 2026

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.