(1)Parliament may authorise for each of the reserve forces a maximum number of officers and a maximum number of men who may at any time be—
(a)in full-time service under full-time service commitments; or
(b)subject to additional duties commitments which are in force.
(2)Accordingly, the numbers of officers and men of a reserve force who are in full-time service, or subject to additional duties commitments which are in force, shall not exceed any numbers for the time being authorised by Parliament for that force.
(3)Any members of a reserve force who are in full-time service or who are subject to additional duties commitments shall not be reckoned in any numbers for the time being authorised by Parliament for any of the regular services.