The Department of Industrial Relations may assist and cooperate with the Wage and Hour Division, and the Children’s Bureau, United States Department of Labor, in the enforcement within this State of the Fair Labor Standards Act of 1938, and, subject to the regulations of the Administrator of the Wage and Hour Division, or the Chief of the Children’s Bureau, and subject to the laws of the State applicable to the receipt and expenditures of money, may be reimbursed by the division or the bureau for the reasonable cost of such assistance and cooperation.