Donald Trump’s executive order supposedly meant to protect women only exposes one of the most vulnerable groups to sexual assault and gender-based violence.

Provisions in one of the first orders signed by Trump mandate that transgender women be housed in men’s prisons by stripping protections for trans prisoners in the Prison Rape Elimination Act.

The PREA was passed unanimously by both parties in Congress in 2003, aiming to “provide for the analysis of the incidence and effects of prison rape in federal, state, and local institutions and to provide information, resources, recommendations and funding to protect individuals from prison rape,” while recognizing the “particular vulnerabilities of inmates who are LGBTI or whose appearance or manner does not conform to traditional gender expectations.”

Guidelines issued in 2012 required officials who were “deciding whether to assign a transgender or intersex inmate to a facility for male or female inmates, and in making other housing and programming assignments” to “consider on a case-by-case basis whether a placement would ensure the inmate’s health and safety, and whether the placement would present management or security problems.”