| |  | Alameda-Contra Costa Transit District (AC Transit) |
| | | Bay Area Rapid Transit (BART) |
| | | Broward County Transit (BCT) |
| | | Central Puget Sound Regional Transit Authority (Sound Transit) |
| | | Charlotte Area Transit System (CATS) |
| | | Chicago Transit Authority (CTA) |
| | | Dallas Area Rapid Transit (DART) |
| | | Hillsborough Area Regional Transit Authority (HART) |
| | | Los Angeles County Metropolitan Transportation Authority (LACMTA) |
| | | Massachusetts Bay Transportation Authority (MBTA) |
| | | Memphis Area Transit Authority (MATA) |
| | | Metropolitan Transit Authority of Harris County, Texas (Metro) |
| | | Northeast Illinois Regional Commuter Railroad Corporation (Metra) |
| | | Orange County Transportation Authority (OCTA) |
| | | Pace - Suburban Bus Division (PACE) |
| | | Port Authority of Allegheny County (Port Authority) |
| | | Regional Transportation Authority (RTA) |
| | | Regional Transportation Commission of Southern Nevada (RTC) |
| | | Rochester Genesee Regional Transportation Authority (RGRTA) |
| | | Sacramento Regional Transit District (RT) |
| | | San Joaquin Regional Transit District (RTD) |
| | | Santa Monica's Big Blue Bus (Big Blue Bus) |
| | | Washington Metropolitan Area Transit Authority (WMATA) |
