A federal judge has extended a preliminary injunction blocking part of a new Wisconsin law that requires abortion providers to have admitting privileges at nearby hospitals.

The order, issued Friday by U.S. District Judge William Conley, stems from a lawsuit that Planned Parenthood and Affiliated Medical Services filed last month. The groups claim the law would shut two of the state’s four abortion clinics because providers at those facilities, in Appleton and Milwaukee, lack admitting privileges.

“Given the substantial likelihood of success on the merits and of irreparable harm, the public’s interest is best serviced by imposing a preliminary injunction on enforcement of the admitting privileges requirement until this court can address its merits after trial,” he wrote in the 44-page opinion.

The judge also said he was skeptical that state attorneys could prove the mandate protects women’s health.

More: Federal Judge Keeps Blocking Part of Wisconsin Abortion Law