Editing Bay Area Rapid Transit (section)

=== Bus services ===
Two different bus networks are operated by regional transit agencies as a [[rail replacement bus service]] when BART is not operating due to regularly scheduled maintenance during the overnight hours.

The [[All Nighter (night bus service)|''All Nighter'']] network provides basic bus service to San Francisco, the East Bay, and Peninsula, replicating rail transit services in those regions, including BART, Caltrain, and Muni Metro. All Nighter buses serve most BART stations (directly or within several blocks), replicating 3-Line late night BART service with abbreviated routes:<ref>{{Cite web |date=May 16, 2024 |title=Transit Information: Late Night Bus Services |url=https://511.org/media/604/show |publisher=Metropolitan Transportation Commission}}</ref>
* Buses replicating Yellow Line service terminate at [[Rockridge station|Rockridge]] (stations east of Rockridge to the regular terminus at [[Antioch station (BART)|Antioch]] are not served)
* Buses replicating Blue Line service terminate at [[Bay Fair station|Bay Fair]] (stations east to [[Dublin/Pleasanton station|Dublin/Pleasanton]] are not served)
* Buses replicating Orange Line service terminate at [[Fremont station (BART)|Fremont]] (stations south to [[Berryessa/North San José station|Berryessa/North San José]] are not served)
The All Nighter-branded bus service started in 2006,<ref>{{cite press release |url=https://www.bart.gov/news/articles/2006/news20060519 |title=Now transit stays up as late as you! Catch the "All Nighter" bus service |date=May 19, 2006 |publisher=San Francisco Bay Area Rapid Transit District |access-date=13 March 2025}}</ref> although late night bus service had been provided as an alternative to BART prior to then.

The ''{{vanchor|Early Bird Express}}'' network is another bus alternative which provides service to major BART stations in the early morning between 3:50 am and 5:30 am.<ref name=BART-EBE>{{cite web |url=https://www.bart.gov/schedules/early-bird-express |title=Early Bird Express |publisher=San Francisco Bay Area Rapid Transit District |access-date=13 March 2025}}</ref> Early Bird Express buses are operated by local transit agencies, including [[AC Transit]], [[Golden Gate Transit]], [[San Francisco Municipal Railway|Muni]], and [[SamTrans]], running between a limited number of major BART stations on San Francisco/Peninsula and Transbay routes which all meet at the [[Salesforce Transit Center]]. Early Bird Express routes are identified by three-digit route numbers starting with 7xx.<ref name=BART-EBE/> {{as of|2024|08}}, there are six Early Bird Express routes, replicating 3-Line service:<ref name=BART-EBE/>
* Yellow Line bus substitute operating to and from Millbrae (Peninsula)
* Blue Line bus operating to and from Daly City (San Francisco)
* Yellow Line buses operating from Pittsburg/Bay Point and Pleasant Hill (Transbay)
* Blue Line bus operating from Dublin/Pleasanton (Transbay)
* Orange Line bus operating from El Cerrito del Norte (Transbay)
The original Early Bird Express network was introduced in February 2019 when the start of rail service was shifted from 4&nbsp;a.m. to 5&nbsp;a.m. to accommodate seismic upgrades in the [[Transbay Tube]];<ref>{{cite press release |url=https://www.bart.gov/news/articles/2018/news20181105-1 |title=BART to open at 5am starting 2-11-2019 with alternative bus service provided |date=November 5, 2018 |publisher=San Francisco Bay Area Rapid Transit District |access-date=March 24, 2025}}</ref> at its debut, it featured fifteen routes,<ref>{{cite web |url=https://www.bart.gov/sites/default/files/docs/EBflyer_FINAL%201-30-19.pdf |title=Early Bird Express (flyer) |date=January 30, 2019 |publisher=San Francisco Bay Area Rapid Transit District |access-date=March 24, 2025}}</ref><ref>{{Cite web |year=2019 |title=Early Bird Express |url=https://www.bart.gov/sites/default/files/docs/EBflyer_v12.pdf |publisher=San Francisco Bay Area Rapid Transit District}}</ref> but some were eliminated later that year due to low ridership.<ref>{{Cite web |date=June 4, 2019 |title=EBX June 2019 Service Improvements |url=https://www.bart.gov/sites/default/files/docs/EBX%20June%202019%20Service%20Changesv3-For%20Web.pdf |publisher=San Francisco Bay Area Rapid Transit District |page=12}}</ref><ref>{{Cite press release |title=Early Bird Express service changes coming 12/16 |date=December 10, 2019 |publisher=San Francisco Bay Area Rapid Transit District |url=https://www.bart.gov/news/articles/2019/news20191210}}</ref> Additional routes were eliminated in 2024, including an inbound bus from Fremont replicating Orange Line service.<ref>{{cite press release |url=https://www.bart.gov/news/articles/2024/news20240313-0 |title=BART to reduce some Early Bird Express Bus trips starting August 12, 2024 |date=August 4, 2024 |publisher=San Francisco Bay Area Rapid Transit District |access-date=13 March 2025}}</ref>

Historically, BART operated ''{{vanchor|BART Express}}'' bus service between 1974 and 1997, extending transit coverage to central and eastern Alameda and Contra Costa counties; these routes were discontinued following the completion of rail line extensions starting in the late 1990s. BART Express was operated for BART under contracts to AC Transit (1974–1989) and Laidlaw (1989–1997).<ref>{{cite web |url=https://bartcars.weebly.com/bart-express.html |title=BART Express |website=BARTchives |access-date=13 March 2025}}</ref> Since then, some services similar to the legacy BART Express routes which were not replaced by rail service have been taken over by local bus operators, including WestCAT<ref>{{cite report |url=https://www.westcat.org/Content/Pdf/Short-Range-Transit-Plan-Public-FINAL.pdf |title=Short-Range Transit Plan |date=2016 |publisher=Western Contra Costa Transit Authority |access-date=13 March 2025 |quote=A contractor employed directly by BART, using the marketing name of BART Express, formerly operated express service to BART from the WCCTA service area. In July 1998, WCCTA assumed operation of this service and has continually restructured service to enhance performance. The express J (JL/JR), JX, and JPX routes have taken over this role.}}</ref>{{rp|6}} and Tri Delta Transit.<ref>{{cite report |url=https://trideltatransit.com/wp-content/uploads/2024/05/ECCTA-2020-29-SRTP.pdf |title=Short Range Transit Plan |date=2020 |publisher=Eastern Contra Costa Transit Authority |access-date=13 March 2025 |quote=In 1997, Tri Delta Transit assumed responsibility for BART Express bus service between Pittsburg/Bay Point BART and Brentwood via the Highway 4 corridor.}}</ref>{{rp|5}}

To accommodate those with conditions and disabilities that prevent from boarding a train, BART has entered a joint venture with AC Transit to establish [[East Bay Paratransit]] to provide [[paratransit]] bus services. <ref>{{cite web |title=Who Provides East Bay Paratransit |url=https://www.eastbayparatransit.org/who-provides-east-bay-paratransit.htm |website=www.eastbayparatransit.org}}</ref>