A federal appeals court has asked the New York Court of Appeals to clarify unsettled questions on prevailing wages under New York Labor Law and the deference a court should give to an agency’s interpretation of the law.

The U.S. Court of Appeals for the Second Circuit Thursday certified two questions to the state’s highest court in Ramos v. SimplexGrinnell LP, 12-4901-cv, a case where workers who installed, fixed, maintained and inspected fire alarm and suppression systems sued SimplexGrinnell, saying it was obligated to pay them “prevailing wages” for their labor on “public works” pursuant to New York Labor Law §220.