13Where by virtue of this Act or a combination scheme an authority which maintained a fire brigade in pursuance of the Fire Brigades Act, 1938, ceases to maintain a fire brigade, the Police and Firemen (War Service) Acts, 1939 and 1944, shall, in the case of former members of the brigade to whom section one of the [2 & 3 Geo. 6. c. 103.] Police and Firemen (War Service) Act, 1939, applies, have effect with such modification of references to the fire brigades to which they belonged, and to the authority maintaining that brigade, as may be prescribed.