The NFL Players Association sent ballots to members Thursday for voting on the proposed collective bargaining agreement, giving the union a week to either ensure another 11 years of labor peace or send the matter back to the drawing board.

The NFLPA announced that votes would be accepted through March 12 at one minute before midnight. The more than 2,000 members will have a window of about 7 1/2 days to examine the 439-page document and cast a yes or no vote. Ratification requires a simple majority.

So if only 1,000 ballots were returned, the union would need 501 yes votes to approve.

Every player who was a dues-paying member during the 2019 season received a ballot, the NFLPA said. Votes will be confidential and received by an independent auditor.