Actually, it is the Department of Energy.
The rescission of the rule would only apply to schools that receive funding from the DOE, which provides money to some schools for research and other programs, such as its Renew America's School grant to assist with energy upgrades.
The current administration will gladly use ANY possible door to curtail the rights of the LGBTQ+ community, and they don't care if cis women are affected.
Love always -- Jessica Rose