AC Transit
Transfers from Golden Gate Transit to AC Transit: Transfers accepted from Routes 580 and 580X for full local fare on the first AC Transit bus boarded in the East Bay.
Transfers from AC Transit to Golden Gate Transit: For Clipper customers, Golden Gate Transit accepts AC Transit interagency vouchers for $2.25 fare credit for adults ($1.10 for youth/senior/disabled) on Routes 580 and 580X. For cash paying customers, Golden Gate Transit accepts AC Transit interagency vouchers for $2.50 fare credit for adults ($1.25 for youth/senior/disabled) on Route 580. Fare credits are automatically issued for Clipper users.
Marin Transit and West Marin Stagecoach
Transfers from Golden Gate Transit to Marin Transit/West Marin Stagecoach: When boarding, advise driver of your intention to transfer to Marin Transit or West Marin Stagecoach. Transfers can be used to complete a one-way trip or a round trip within Marin County. Fare credits are automatically issued for Clipper users.
Transfers from Marin Transit/West Marin Stagecoach to Golden Gate Transit: $2.00 adult local fare credit ($1.80 for Clipper and $1.00 for youth/senior/disabled). To travel outside Marin County, pay the full regional fare on Marin Transit or Stage and receive a transfer. Fare credits are automatically issued for Clipper users.
Transfers may be used up to three times within a two-hour period if traveling within Marin County or within three hours if traveling between counties.
More here about Marin Transit passes & transfers here >>
Muni (San Francisco Municipal Transportation Authority)
Transfers are automatically issued to Clipper users only; there are no transfers for cash-paying customers.
Transfers from Golden Gate Ferry/Golden Gate Transit to Muni: $0.50 fare credit for adults when boarding Muni within 2 hours of paying with e-cash; no fare credit for youth/senior/disabled or Muni pass holders.
Transfers from Muni to Golden Gate Ferry/Golden Gate Transit: $0.50 fare credit for adults ($0.25 for youth/senior/disabled) when boarding Golden Gate Ferry/Golden Gate Transit within 2 hours.
Petaluma Transit
Transfers from Golden Gate Transit to Petaluma Transit: Transfers accepted for a full local fare.
Transfers from Petaluma Transit to Golden Gate Transit: $1.50 adult fare credit ($0.75 for youth/senior/disabled). Fare credits are automatically issued to Clipper users.
Santa Rosa CityBus
Transfers from Golden Gate Transit to Santa Rosa CityBus: Transfers accepted for a full local fare.
Transfers from Santa Rosa CityBus to Golden Gate Transit: $1.50 adult fare credit ($0.75 for youth/senior/disabled). Fare credits are automatically issued to Clipper users.
SolTrans
Transfers are automatically issued to Clipper users only; there are no transfers for cash-paying customers.
Transfers from Golden Gate Transit to SolTrans: $1.75 fare credit for adults ($1.50 for youth, $0.85 for senior/disabled) for Route 580.
Transfers from SolTrans to Golden Gate Transit: For Clipper customers, $2.25 adult fare credit ($1.10 for youth/senior/disabled) on 580. For cash-paying customers, $2.50 adult fare credit ($1.25 for youth/senior/disabled) on Route 580.
Sonoma County Transit
Transfers from Golden Gate Transit to Sonoma County Transit: $1.50 adult fare credit ($1.25 for youth, $0.75 for senior/disabled). Fare credits are automatically issued to Clipper users.
Transfers from Sonoma County Transit to Golden Gate Transit: $1.50 adult fare credit ($0.75 for youth/senior/disabled). Fare credits are automatically issued to Clipper users.
Sonoma-Marin Area Rail Transit District (SMART Train)
Transfers from Golden Gate Transit & Golden Gate Ferry to SMART: $1.50 fare credit for adults, $1.25 fare credit for youth, $0.75 fare credit for senior/disabled. Fare credits are only issued on Clipper when using cash value (not passes). No fare credits are issued when using cash or SMART eTickets.
Transfers from SMART to Golden Gate Transit & Golden Gate Ferry: $1.50 fare credit for adults, $0.75 fare credit for youth/senior/disabled. Fare credits are only issued on Clipper when using cash value (not passes). No fare credits are issued when using cash or SMART eTickets.
WestCAT
Transfers from Golden Gate Transit to WestCAT: $1.00 adult/youth fare credit ($0.50 for senior/disabled) at El Cerrito del Norte BART Station for Route 580 and 580X customers. Fare credits are automatically issued to Clipper users.
Transfers from WestCAT to Golden Gate Transit: For Clipper customers, $2.25 adult fare credit ($1.10 for youth/senior/disabled) on Route 580 and 580X. For cash-paying customers, $2.50 adult fare credit ($1.25 for youth/senior/disabled) on Route 580 and 580X. Fare credits are automatically issued to Clipper users.