BOISE, Idaho — Idaho Gov. Brad Little on Monday signed into law two anti-transgender bills.

The Republican governor approved legislation that prohibits transgender people from changing the sex listed on their birth certificates, and another that bans transgender girls and women from competing in women’s sports.

The birth certificate measure ignores a 2018 federal court ruling that a past law barring transgender people from making the birth certificate changes violated the Equal Protection Clause of the U.S. Constitution. The judge scrapped the ban and warned against new rules. The Idaho attorney general’s office said it could cost $1 million if the state had to defend the ban again and lost.

Backers say the law is needed so Idaho has accurate birth records.

The sports ban applies to all sports teams sponsored by public schools, colleges and universities. A girls’ or women’s team will not be open to transgender students who identify as female.

Backers said the law was needed because transgender female athletes have physical advantages.

Opponents said it discriminated against transgender girls and women, and would subject athletes to invasive tests to prove their gender, likely causing some potential athletes to avoid sports.

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