(1)Orders or regulations under section 4 may provide for securing that persons of such descriptions as may be prescribed shall be exempted from liability to be required to undergo training under section 22.
(2)Such orders or regulations may also provide for relaxing, in such cases as may be prescribed, the liability to be required to undergo training under section 22.
(3)Officers authorised for the purposes of this subsection by or in accordance with directions of the Defence Council may, in accordance with such orders or regulations—
(a)exempt any unit or other group of members of a reserve force from liability to be required to undergo training under section 22; or
(b)relax that liability in the case of the unit or group.
(4)A commanding officer may, in accordance with orders or regulations under section 4—
(a)exempt any member of a reserve force who is under his command from liability to be required to undergo training under section 22; or
(b)relax that liability in the case of such a person.