Louisiana has banned transgender girls from joining girls' sports teams, the latest in a string of similar bans in US states with conservative Republican-controlled legislatures.
The bill binds schools and colleges in the state and was approved by the Republican-controlled state legislature last month with enough support to override any veto from Louisiana Governor John Bel Edwards, a Democrat who opposed the legislation.
Edwards said he would allow the bill to become law on Monday without his signature, telling reporters that it was obvious to him that even if he vetoed the bill it would still become law.
He has joined transgender rights groups in criticizing the bill as bigoted against a subset of young people who already face discrimination and violence. Edwards said there is no known example in Louisiana of a transgender girl joining or attempting to join a girls sports team.
"I hope we can all get to a point soon where we realize these young people are doing the very best they can to survive," Edwards said of the state's transgender youth. "I just think we can be better than that bill."