AASHTO recognizes the segments in Florida, Georgia, North Carolina, Virginia, Maryland, Massachusetts, New Hampshire, and Maine as being the only "official" segments of USBR 1. The other segments, even if signed or mapped, have not yet been submitted by the states to AASHTO for formal inclusion or recognition in the U.S. Bicycle Route system. The New Hampshire and Maine sections of USBR 1 were approved in May 2011,[2] with the New Hampshire section following the East Coast Greenway. Also approved was an alternate route, U.S. Bicycle Route 1A, that runs closer to the coast through a portion of Maine.[3][4][2] Florida and Massachusetts segments were established in November 2014.[5] Georgia's segment was designated in May 2019.[6]
^ abSpecial Committee on U.S. Route Numbering (November 20, 2014). "Report to SCOH"(PDF) (Report). Washington, DC: American Association of State Highway and Transportation Officials. Archived from the original(PDF) on January 28, 2019. Retrieved January 17, 2021.
^Special Committee on U.S. Route Numbering (May 19, 2012). "Report to SCOH"(PDF) (Report). Washington, DC: American Association of State Highway and Transportation Officials. Archived from the original(PDF) on June 3, 2019. Retrieved January 17, 2021.
^Special Committee on U.S. Route Numbering (May 29, 2014). "Report to SCOH" (Report). Washington, DC: American Association of State Highway and Transportation Officials. Archived from the original(DOCX) on February 26, 2020. Retrieved January 17, 2021.
^ abcSpecial Committee on U.S. Route Numbering (May 2, 2011). "Report to the Standing Committee on Highways"(PDF) (Report). Washington, DC: American Association of State Highway and Transportation Officials. Archived from the original(PDF) on October 16, 2017. Retrieved January 17, 2021.