AUGUSTA — Maine’s largest state workers’ union is asking Gov. Paul LePage’s administration not to subcontract work normally done by bargaining units.

The Maine State Employees Association’s request Monday came amid negotiations for a new agreement with the union, which represents about 15,000 workers. The current contract ended Sept. 30.

The union says rules bar any subcontracting without negotiations with the union over the impact. It provided no specific cases in which work’s been contracted out.

State Bureau of Human Resources Director Joyce Oreskovich says there’s been no substantial contracting out of work since the contract ended. She said the state was researching what the law says on the matter.