166 Consents of Secretary of State.E+W
A consent of the Secretary of State under the foregoing provisions of this Part—
(a)may be given unconditionally or subject to conditions;
(b)may be given in relation to a particular case or in relation to such descriptions of case as may be specified in the consent; and
(c)except in relation to anything already done or agreed to be done on the authority of the consent, may be varied or revoked by a notice given by the Secretary of State to the Agency.