The NBA has officially mandated the national anthem be played before the opening tip of all games now that fans are returning to arenas.

NBA Chief Communications Officer Mike Bass said Wednesday teams will abide what has been league policy for quite some time:

“With NBA teams now in the process of welcoming fans back into their arenas, all teams will play the national anthem in keeping with longstanding league policy,” Bass said in a statement, via Marc J. Spears of The Undefeated.

The announcement comes shortly after Dallas Mavericks owner Mark Cuban confirmed the team wasn't playing the anthem before games this season. Cuban had consulted with NBA Commissioner Adam Silver on the matter and had planned for the trend to continue.

It seems the NBA did not prohibit the Mavs from avoiding the playing of the anthem because the league left it to individual teams to carry out operations in home arenas without fans present:

“Under the unique circumstances of this season, teams are permitted to run their pregame operations as they see fit,” NBA spokesman Tim Frank said, via The Associated Press.

However, with fans returning to some arenas, the NBA has changed its course. Cuban said Wednesday the organization is fine with the mandate and will comply:

Dallas hosted fans for the first time this season Monday against the Minnesota Timberwolves, as over 1,500 essential workers were in attendance.

With fans returning to the stands, the Mavs and all other 29 franchises will be required to play the national anthem.