A federal judge has blocked Idaho from enforcing its new law that criminalizes transgender bathroom use, providing immediate relief to affected residents. Judge Amanda K. Brailsford of the U.S. District Court for the District of Idaho granted a preliminary injunction, ruling the statute is likely unconstitutionally vague. The law would have imposed up to five years in prison for using restrooms not matching one's birth sex.

The ruling affects businesses across Idaho, from restaurants to retail stores, which faced potential liability under the broad measure. Companies operating in the state must now navigate uncertainty about restroom policies while the case proceeds. The law covered all publicly owned buildings and privately owned commercial settings, creating compliance challenges for employers and business owners.

Idaho's law stands as the most restrictive transgender bathroom legislation nationwide, applying to single-stall facilities and imposing felony penalties. Twenty other states restrict transgender restroom access, but most limit restrictions to schools and government buildings. The judge found that enforcement would require subjective officer judgments about biological sex without clear standards.

Law enforcement groups had previously urged lawmakers not to pass the measure, citing enforcement difficulties. State officials argued the law addresses privacy and safety concerns, including preventing voyeurism in women's restrooms. However, Judge Brailsford noted existing laws already protect public safety without targeting transgender individuals specifically.