NEW YORK — So long, replacements refs. The NFL’s regular crews will be back at work starting Thursday night.

After two days of marathon negotiations — and mounting frustration among coaches, players and fans — the NFL and the referees’ union announced that a tentative agreement had been reached to end a lockout that began in June.

Commissioner Roger Goodell, who was at the bargaining table Tuesday and Wednesday, said the regulars would call the Browns-Ravens game at Baltimore.

The tentative eight-year deal must be ratified by 51 percent of the union’s 121 members.

The replacements worked the first three weeks of games, triggering a wave of outrage that threatened to disrupt the rest of the season. After a missed call cost the Green Bay Packers a win on a chaotic final play at Seattle on Monday night, the two sides really got serious.

The NFLRA said the current defined benefit pension plan will remain in place for current officials through the 2016 season or until the official earns 20 years’ service. The defined benefit plan will then be frozen.

Retirement benefits will be provided for new hires, and for all officials beginning in 2017, through a defined contribution arrangement. The annual league contribution made on behalf of each game official will begin with an average of more than $18,000 per official and increase to more than $23,000 per official in 2019, and a partial match on any additional contribution that an official makes to his 401(k) account.

Apart from their benefit package, the game officials’ compensation will increase from an average of $149,000 a year in 2011 to $173,000 in 2013, rising to $205,000 by 2019.

Pictured: MIKE CAREY AND ED HOCHULI