The Muni system is a network of metro/subways, buses, streetcars and cable cars serving the city of San Francisco.
Muni passes (daily, weekly and monthly) are valid for all forms of Muni transport, with an added surcharge for riding the cable cars. Individual Muni tickets and transfers are valid on all Muni services except cable cars.
See Muni Maps and Trip Planners for help in navigating the city-wide transit system.
The BART system (Bay Area Rapid Transit) carries commuters within the city limits, and to areas outside the city -- to the East Bay and to the Peninsula.
BART tickets are valid on BART only. There are no set ticket denominations. Your ticket value will depend on the dollar amount you choose to add to your ticket when you buy it at a ticket machine.
See Riding BART for more information on tickets and for helpful tips on using the BART system.