The Michigan Supreme Court has unanimously decided not to step in early to decide the legality of the state's right-to-work law.
The court on Friday said it wasn't persuaded that ruling now would be an "appropriate exercise" of its discretion.
Republican Gov. Rick Snyder in January asked for an advisory opinion on the law that lets workers stop paying union dues or fees.
Snyder wanted the justices to especially decide whether the law applies to state employees who belong to unions and are under the authority of the Michigan Civil Service Commission. Contracts expire this year.
Since Snyder made his request, unions have sued in state and federal courts challenging the law. A lawsuit on whether the law applies to state employees is pending in the Michigan Court of Appeals.