Subsection (4) of section seventy-eight of the Army Act, 1955, and subsection (4) of section seventy-eight of the Air Force Act, 1955 (power of commanding officer, where he finds-acting warrant officer or non-commissioned officer guilty of an offence and awards no other punishment or no other punishment except stoppages, to order the accused to revert to his. permanent rank), shall each be amended by the addition, at the end thereof, of the words " or to assume an acting rank lower than that held by him but higher than his permanent rank ".