For the purpose of obtaining financial aid from the United States, or from any department, bureau, or agency thereof, or from the state water commission, the board of a district may agree to conform to the laws of the United States and to the regulations of any department, bureau, or agency thereof, or may agree to conform to the regulations of the state water commission and to the supervision of such federal agency, bureau, or department or to the supervision of the state water commission, as the case may be.