By volunteering to participate, Intercity Bus Atlas (ICBA) service providers (Providers) support the Bureau of Transportation Statistics (BTS) work in studying and documenting the fundamental role of the intercity bus industry to the nation's transportation system.

Participation and registration

Providers opt-in to the ICBA by agreeing to the terms of the ICBA Memorandum of Understanding contained on the web-based Registration Form. After agreeing to the terms of the MOU, the Provider is entered into a one-year agreement with BTS for their data; this agreement automatically renews once-a-year unless the Provider writes to BTS with a termination request. 

Based on a Creative Commons Attribution Non-Commercial License, the ICBA MOU permits BTS to collect, compile, publish and archive the Provider's GTFS data at least once a year but no more than four times a year. The MOU additionally (1) compels BTS to attribute the data to the Provider, (2) prohibits it from using the data for a commercial purpose, and (3) disallows it from making substantive material alterations to the submitted data.

The data represented on BTS' ICBA products (data, maps, or GIS layers) are intended to be snapshots of intercity scheduled passenger services in the United States; they are not intended for trip planning, scheduling, navigation, or any real-time or near-real-time purposes. While using the data for research, analysis, and planning is permitted and encouraged, all other reuses of the data are prohibited.

Intercity Bus Atlas (ICBA) Providers

As of April 2025, the Intercity Bus Atlas is derived from the GTFS schedule data provided to BTS on behalf of the following Providers*:

• Adirondack Trailways
• Airport (MAC)
• Alvand Transportation
• Amtrak
• Amtrak Chartered Motorcoach
• Amtrak Chartered Vehicle
• Arrow Trailways
• Badger Bus Lines
• Barons Bus
• Beeline Express
• Burlington Trailways
• Bustang
• C&J
• Capital Trailways
• Central Oregon Breeze
• Coach USA Erie
• Coach USA
• Community Coach
• Concord Coach Lines
• CorridorRides
• Curry Public Transit
• DATTCO
• Delmarva Community Transit
• Detroit Ann Arbor Express
• Diamond Express
• ECO Transit
• Eastern Sierra Transit Authority
• Executive Transportation
• Express Arrow
• FlixBus-US
• Froggy Transportation
• Fullington Trailways
• Greyhound-us
• Groome Transportation
• Hampton Luxury Liner
• Jefferson Lines
• Kayak Public Transit
• MARC
• Maple Grove
• Met Council
• Metro Transit
• Metro Transit/Met Council
• Michigan Flyer
• Miller Transportation
• Monsey Trails
• Mountain Line Transit Authority
• Mountain States Express
• Mt. Hood Express
• NCRTD
• New Castle Area Transit Authority
• New York Trailways
• Newark Airport Express
• North Central Montana Transit
• North County Transit District
• Northeast Oregon Public Transit
• Northern Transit Interlocal
• Northfield Lines
• Open Plains Transit
• Orange Westchester Link
• Oregon POINT
• OurBus
• Pacific Crest Lines
• People Mover
• Peter Pan Bonanza Division
• Peter Pan Bus Lines
• Phoenix Sky Harbor International Airport
• Pine Hill Trailways
• Plymouth and Brockton Street Railway Company
• Red Coach
• Redding Area Bus Authority
• Redwood Coast Transit
• Rensselaer County/Yankee Trails
• Rio Vista Delta Breeze
• Roadrunner Shuttle
• Rochester City Lines
• Rockland Coaches
• Route 66 Express
• SMART
• Sage Stage
• Salt Lake Express
• Sandy Area Metro
• Shore Line East
• ShortLine Hudson
• SouthWest Transit
• Southeastern Stages
• St Cloud Metro Bus
• Stagecoach Express
• Suburban Transit
• Summit Stage
• Sunway Charters
• Temporary Amtrak Chartered Vehicle
• The Lift
• Tillamook County Transportation District
• Trans-Bridge Lines
• Tri-Valley Transit
• Trinity Transit
• University of Minnesota
• Valley Metro
• Van Galder (Coach USA)
• Vegas Airporter
• Ventura County Transportation Commission
• Vermont Translines
• Via Rail Canada
• Village Tours
• Virginia Breeze
• Waukesha County Transit
• WeGo Public Transit
• Wisconsin Coach Lines
• Yosemite Area Regional Transportation System

* This list is based on the "agency_name" values contained in the "agency.txt" file within the GTFS file package submitted on behalf of each ICBA Provider. Please be mindful that a Provider may operate some of its routes on behalf of other Providers and it may appear on the list in more than one capacity (i.e., as an independent Provider and/or as a contract or interline Provider on behalf of another).