Editing Altamont Corridor Express (section)

=== Altamont Corridor Express ===
[[File:New ACE livery at Fremont-Centerville station, July 2018.JPG|left|thumb|Car in new Altamont Corridor Express livery at Fremont station in July 2018]]
In December 2012, the service was rebranded from Altamont Commuter Express to Altamont Corridor Express to reflect plans for a broader scope of service.<ref name="mass_transit">{{cite press release |url=http://www.masstransitmag.com/press_release/10843528/sjrrc-refreshes-ace-brand-with-new-logo |title=SJRRC Refreshes ACE Brand with new Logo |via=Mass Transit Magazine |publisher=San Joaquin Regional Rail Commission |date=December 10, 2012}}</ref>

In March 2014, ACE opened a $65 million, {{convert|121000|sqft|adj=on}} maintenance facility in Stockton.<ref>{{cite news |url=http://www.mantecabulletin.com/archives/101376/ |title=ACE opens $65M state-of-art facility |newspaper=Merced Bulletin |date=March 23, 2014 |first=Vince |last=Rembulat |access-date=August 29, 2016 |archive-url=https://web.archive.org/web/20160916131527/http://www.mantecabulletin.com/archives/101376/ |archive-date=September 16, 2016 |url-status=dead }}</ref> On July 1, 2015, management and governance of the ''San Joaquin'' passed from Caltrans to the new San Joaquin Joint Powers Authority.<ref>{{cite news|url=http://www.fresnobee.com/news/local/article25646398.html|title=Valley agency takes control of Amtrak San Joaquin trains|first=Tim |last=Sheehan |newspaper=[[Fresno Bee]]|date=June 26, 2015|access-date=August 29, 2016}}</ref> The SJJPA has nominal control over the SJRRC, but delegates all responsibility over ACE to the SJRRC.

On March 7, 2016, an ACE train was derailed by a mudslide in [[Niles Canyon]] near [[Sunol, California|Sunol]]. The front car plunged into the rain-swollen [[Alameda Creek]]. Fourteen passengers were injured, but there were no fatalities.<ref>{{cite news|url=https://www.nytimes.com/aponline/2016/03/07/us/ap-us-commuter-train-derails.html |title=Fallen Tree Derails Train in California; At Least 9 Injured |work=New York Times |date=March 8, 2016 |access-date=March 8, 2016|last1=Hauser |first1=Christine }}</ref><ref>{{cite web|url=http://www.sfgate.com/bayarea/article/Commuter-train-derails-in-Niles-Canyon-6876223.php |title=14 hurt as commuter train derails -- no ACE service Tuesday |first1=Jill |last1=Tucker |first2=Jenna |last2=Lyons |first3=Michael |last3=Cabanatuan |date=March 8, 2016 |publisher=SFGate |access-date=March 8, 2016}}</ref>

ACE received [[Road Repair and Accountability Act]] funds in order to initiate Saturday service in January 2018,<ref>{{cite news|last1=Wanek-Libman|first1=Mischa|title=California rail providers receive $52M in state funding|url=http://www.rtands.com/index.php/passenger/commuter-regional/california-rail-providers-receive-52m-in-state-funding.html|access-date=February 2, 2018|agency=RT&S|date=January 31, 2018}}</ref> with two Saturday round trips added in September 2019.