The Trump administration began its implementation of a policy banning most transgender individuals from enlisting to serve in the military Friday two years after the president proposed the change.

Individuals who continue to identify as their biological sex can still serve under the rule that could affect an estimated 15,000 service members, according to CBS News. There will also be waivers for certain individuals already serving, ABC News reported.

Surgery for gender transition will no longer be permitted, unless the process has already begun.

Military personnel will handle future diagnoses of gender dysphoria on a case-by-case basis, said Anthony Kurta, acting deputy undersecretary of defense for personnel and readiness. He said anyone “currently serving or anyone under contract to enter the military who has been diagnosed with gender dysphoria is grandfathered.”

“If the service member can continue to meet all standards, including deployablity standards, and all those associated with their biological sex, then the service member can continue to serve without waiver,” he said, according to a Defense Department press release.

LGBTQ advocacy groups denounced the changes. ABC’s “The View” hosted two transgender service members opposed to the policy on Thursday’s show.

WATCH:

“If you’re transgender, you’re simply not welcome.” Today, a new policy that largely limits the military service of transgender persons will take effect. @TheView spoke with two active-duty transgender service members about how it will impact them. https://t.co/IrOTdj8N8q pic.twitter.com/rgpKCPcE5y — The View (@TheView) April 12, 2019

The military defines gender dysphoria as “a marked incongruence between one’s experienced/expressed gender and assigned gender … associated with clinically significant distress and impairment of functioning,” according to the Defense Department guidelines. (RELATED: Cory Booker Says He Will Repeal ‘Un-American’ Transgender Military Ban When Elected)

The ban comes two years after President Donald Trump tweeted about making a policy change.

“After consultation with my Generals and military experts, please be advised that the United States Government will not accept or allow transgender individuals to serve in any capacity in the U.S. Military,” he wrote.

After consultation with my Generals and military experts, please be advised that the United States Government will not accept or allow…… — Donald J. Trump (@realDonaldTrump) July 26, 2017

Since that announcement, several lawsuits have been filed to enjoin the proposed ban. A federal judge lifted the final injunction to the ban in March, allowing the Pentagon to move forward with the policy.

Follow Whitney on Twitter

Content created by The Daily Caller News Foundation is available without charge to any eligible news publisher that can provide a large audience. For licensing opportunities of our original content, please contact licensing@dailycallernewsfoundation.org.