Regulations last checked for updates: Nov 25, 2024

Title 49 - Transportation last revised: Nov 18, 2024
Appendix Appendix A - Appendix A to Part 1584—Urban Area Determinations for Over-the-Road Buses
State Urban area Geographic areas
CAAnaheim/Los Angeles/Long Beach/Santa Ana AreasLos Angeles and Orange Counties.
San Diego AreaSan Diego County.
San Francisco Bay AreaAlameda, Contra Costa, Marin, San Francisco, and San Mateo Counties.
DC (VA, MD, and WV)National Capital RegionDistrict of Columbia; Counties of Calvert, Charles, Frederick, Montgomery, and Prince George's, MD; Counties of Arlington, Clarke, Fairfax, Fauquier, Loudoun, Prince William, Spotsylvania, Stafford, and Warren County, VA; Cities of Alexandria, Fairfax, Falls Church, Fredericksburg, Manassas, and Manassas Park City, VA; Jefferson County, WV.
IL/INChicago AreaCounties of Cook, DeKalb, DuPage, Grundy, Kane, Kendall, Lake, McHenry, and Will, IL; Counties of Jasper, Lake, Newton, and Porter, IN; Kenosha County, WI.
MABoston AreaCounties of Essex, Norfolk, Plymouth, Suffolk, Middlesex, MA; Counties of Rockingham and Strafford, NH.
NY (NJ and PA)New York City/Jersey City/Newark AreaCounties of Bronx, Kings, Nassau, New York, Putnam, Queens, Richmond, Rockland, Suffolk, and Westchester, NY; Counties of Bergen, Essex, Hudson, Hunterdon, Ocean, Middlesex, Monmouth, Morris, Passaic, Somerset, Sussex, and Union, NJ; Pike County, PA.
PA (DE and NJ)Philadelphia Area/Southern New Jersey AreaCounties of Burlington, Camden, and Gloucester, NJ; Counties of Bucks, Chester, Delaware, Montgomery, and Philadelphia, PA; New Castle County, DE; Cecil County, MD; Salem County, NJ.
TXDallas Fort Worth/Arlington AreaCollin, Dallas, Delta, Denton, Ellis, Hunt, Kaufman, Rockwall, Johnson, Parker, Tarrant, and Wise Counties, TX.
Houston AreaAustin, Brazoria, Chambers, Fort Bend, Galveston, Harris, Liberty, Montgomery, San Jacinto, and Waller Counties, TX.
authority: 49 U.S.C. 114; Pub. L. 110-53 (121 Stat. 266, Aug. 3, 2007) secs. 1501 (6 U.S.C. 1151), 1531 (6 U.S.C. 1181), and 1534 (6 U.S.C. 1184)
source: 85 FR 16515, Mar. 23, 2020, unless otherwise noted.