As part of the interagency operations agreement between the Marin County Transit District and the Golden Gate Bridge, Highway, and Transportation District, all paratransit for the Golden Gate Transit regional network is also provided by Marin Access.

Marin Transit Catch-a-Ride[7] offers eligible riders up to thirty discounted rides per quarter (three month period) using paper or digital vouchers.

Marin Transit offers group and individualized Travel Training Programs[9] to help riders become more informed and independent.

Individualized, one-on-one trainings aboard fixed route vehicles are also available to help participants learn to ride in a 'real-world' environment with ease.

Marin Transit is the only public transit agency in the United States that provides dedicated home to school student transportation operated by yellow school buses, in additional to supplemental service provided by regular fixed route vehicles.

[11] Provided through a partnership with the National Park Service, Marin Transit provides staffing, operations support, and contract oversight for a seasonal, recreational shuttle to the Muir Woods National Monument.

The shuttle runs weekends between late Spring and the early Fall, and adds additional weekday service in the peak summer period.

For all service outside of Marin County, fares and zone boundaries are set by Golden Gate Transit.

The current reduced-income pass price, subject to verification and approval by the Ross Valley School District, is $75.

As of 2024, Marin Transit owns a fleet of approximately 105 vehicles for fixed route and demand response service.

On August 5, 2024, Marin Transit had a full zero-emission fleet replacement plan approved by their Board of Directors.

[21] The specialized vehicles used on the Muir Woods Shuttle and for Home to School Transportation are contractor owned and maintained, and are not reflected in the table above.