As of February 22nd, President Trump changed the policy for transgender students allowed to use a bathroom they most identify with—this goes for locker rooms as well.
This effort reversed the Obama Administration’s May 2016 directive. It’s now on states and school districts to determine if the federal sex-discrimination law is applicable to gender identity.
The Justice and Education departments informed all US school via a letter that previous settings precipitated too much confusion (sometimes lawsuits) on how to implement it. While Trump has removed the old policy, the changes will not pose a threat to anti-bullying safeguards.
More, Obama’s efforts were not legally binding, but transgender-rights advocates pushed it out of concern and ultimately fight discrimination—some saw this as the federal government overstepping their bounds.