Manner of Commissioners' directions etc.
7.—(1) Where, by or under these Regulations, it is provided that the Commissioners may—
(a)make a direction or requirement;
(b)give their permission or consent;
(c)grant approval; or
(d)impose a condition or restriction,
then they may do so only in writing; and they may make a direction or requirement or impose a condition or restriction by means of a public notice.
(2) Any request for the proper officer to give his permission or grant approval under these Regulations shall, if he or the Commissioners direct, be made in writing.
(3) Any right granted to the Commissioners or the proper officer by these Regulations to—
(a)make a direction or requirement;
(b)give permission or consent;
(c)grant approval; or
(d)impose a condition or restriction,
shall include a right to revoke, vary or replace any such direction, requirement, permission, consent, approval, condition or restriction.