"The Court concludes that the petitioners may pursue a pre-enforcement challenge against certain of the named defendants but not others," the court, led by Justice Neil Gorsuch, said.
The court also let the law remain in effect pending the legal challenges. The ruling is procedural and will not be the final word on the law's constitutionality.
"The petitioners then filed a request for injunctive relief with the Court, seeking emergency resolution of their application ahead of [the law's] approaching effective date," the court said. "In the abbreviated time available for review, the Court concluded that the petitioners’ filings failed to identify a basis in existing law that could justify disturbing the Fifth Circuit’s decision to deny injunctive relief."