OAKLAND, Calif. — The San Francisco Bay Area’s main commuter train system is running limited service Tuesday morning after a tentative deal was struck to end a commute-crippling four-day strike.

Bay Are Rapid Transit tweeted that riders should expect up to 45-minute delays system wide as the trains get back on track.

Union officials announced the deal Monday night. It still requires approval from union members, then from the Bay Area Rapid Transit’s board of directors.

The talks between BART and its two largest unions dragged on for six months- a period that saw two chaotic dayslong strikes, contentious negotiations and frazzled commuters wondering if they would wake up to find the trains running or not.