| Stakeholder | Role and Responsibility |
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| Beaver County Transit Authority (BCTA) | Operations and maintenance of fixed route bus service and demand response transit in Beaver County, with commuter service into downtown Pittsburgh. |
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| Mid–Mon Valley Transit Authority (MMVTA) | Operations and maintenance of fixed route bus service and demand response transit serving Mon River communities in eastern Washington County and western Westmoreland County, with commuter service into downtown Pittsburgh. |
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| Pittsburgh Regional Transit (PRT) | Region's primary transit service provider operating in Allegheny County and the City of Pittsburgh. Includes county–wide demand response transit and light rail service (LRT) into downtown Pittsburgh. |
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| Regional Transit Agencies | Operations and maintenance of fixed route bus service and demand response transit providing county–wide service or more–limited service operating areas. Multiple agencies provide commuter service into downtown Pittsburgh, or participate with Port Authority in a sub–regional transit fare card. |
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