James Hanlon, a U.S. District Court Judge for the Southern District of Indiana, issued a preliminary injunction on Friday blocking portions of a state bill prohibiting the use of puberty blockers and hormone therapy treatments for gender dysphoric youth.

News of the ruling, triggered by a lawsuit filed by the American Civil Liberties Union (ACLU) on behalf of four transgender kids in the state, was hailed by the organization.

“We won’t rest until this unconstitutional law is struck down for good,” the ACLU’s legal director in Indiana, Ken Falk, wrote in an official statement released following the announcement.

“Today’s victory is a testament to the trans youth of Indiana, their families, and their allies, who never gave up the fight to protect access to gender-affirming care and who will continue to defend the right of all trans people to be their authentic selves, free from discrimination,” he added.

In early April, Governor Eric Holcomb (R., Ind.) signed into law the ban with the broad support of the Republican-controlled state legislature. “Permanent gender-changing surgeries with lifelong impacts and medically prescribed preparation for such a transition should occur as an adult, not as a minor,” the governor said at the time.

The bill’s author, Republican state senator Tyler Johnson, echoed the sentiment in late February. “A child cannot understand the weight and permanency of these decisions,” said Johnson, who is also a doctor. “Given the pressures put on parents, the irreversible nature of these procedures and the unknown long-term effects, there’s no such thing as true informed consent.”

Indiana joins a growing list of nearly two dozen Republican states that have recently enacted medical and surgical bans, including Idaho, Flordia, Missouri, Alabama, and Arkansas.

However, judges have dealt a string of setbacks to Republican state lawmakers in recent months. Both Alabama and Arkansas have seen federal judges issue similar blocks. Meanwhile, Oklahoma’s attorney general’s office argued in mid May it would not enforce its respective law while critics actively sought a temporary court order blocking the measure.

Hanlon, a Trump-appointed justice, decided to preserve sections of the legislation banning gender reassignment surgeries for minors.

The ruling comes less than two weeks before the state law was set to come into effect on July 1.