The Biden administration is expected to repeal the ban on transgender Americans from serving in the military, multiple people informed of the decision told CBS News. The announcement is expected as soon as Monday, one senior Defense official and four outside advocates of repealing the ban told CBS News.

The senior Defense official told CBS News the repeal will be through executive order signed by President Joe Biden. The announcement is expected to take place at a ceremony with newly-confirmed Defense Secretary Lloyd Austin, who will order the Pentagon to go back to the policy enacted in 2016 by former Defense Secretary Ash Carter that allowed transgender Americans to serve openly.

The White House did not respond immediately to a request for comment.

The new order will direct the branches of the military to outline an implementation plan. 

The ban was announced by former President Trump via a tweet in July 2017. The ban took effect in April 2019 and barred transgender Americans from enlisting in the military.

In 2014, it was estimated there were around 15,500 transgender military members serving, according to a study by the Williams Institute at the UCLA School of Law.

Biden frequently repeated on the campaign trail his promise to repeal the ban.

Austin said at his Senate confirmation hearing last week that he planned to repeal the ban.

"I support the president's plan or plan to overturn the ban," Austin said on Tuesday when asked by Senator Kirsten Gillibrand, "I truly believe, Senator, that as I said in my opening statement, that if you're fit and you're qualified to serve and you can maintain the standards, you should be allowed to serve. And, you can expect that I will support that throughout."

Fin Gomez contributed to this report.

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