TALLAHASSEE, Fla. (AP) Floridas Republican governor signed a bill Tuesday barring transgender females from playing on public school teams intended for student athletes born as girls, plunging the state into the national culture war over transgender rights.

In Florida, girls are going to play girls sports and boys are going to play boys sports, Gov. Ron DeSantis said as he signed the bill into law at a Christian academy in Jacksonville. Were going to make sure that thats the reality.

The new law, sure to be challenged as unconstitutional, inflames an already contentious discussion unfolding nationally as Republican-controlled states move to limit the rights of LGBTQ people. It also could impose severe financial consequences on Florida.

The NCAA, which oversees college athletics, has threatened to relocate key games from states that discriminate against certain athletes. When the Florida Legislature was considering the measure in April, the NCAA said it would commit championship games to locations where hosts can commit to providing an environment that is safe, healthy and free of discrimination.

High-profile athletic events, such as football bowl games and basketball tournaments, generate millions of dollars for local communities.

The measure approved by the GOP-led Legislature takes effect July 1. It says a transgender student athlete cant participate without first showing a birth certificate saying she was a girl when she was born. Its not clear whether all females must show their birth certificates, or only those whose gender is questioned. The proposal allows another student to sue if a school allows a transgender girl or woman to play on a team intended for biological females.

The final wording of the Fairness in Womens Sports Act stripped away some of its most contentious elements, including a requirement that transgender athletes in high schools and colleges undergo testosterone or genetic testing and submit to having their genitalia examined.

But the legislation signed by the governor advances an underlying principle asserted by supporters: Biological differences between males and females make it unfair for athletes identified as boys at birth to compete on teams for girls and women. The law would not bar female athletes from playing on boys or mens teams.