[20 Approval of wharvesU.K.
(1)The Commissioners may approve, for such periods ... as they think fit, places for the loading or unloading of goods or of any class or description of goods.
[(1A)In any case where they consider it would facilitate the administration, collection or enforcement of any duty of customs, the Commissioners may by regulations—
(a)specify conditions which must be met before an approval is granted, or
(b)specify other conditions which they may, in any particular case, require to be met before an approval is granted.
(1B)In any other case, an approval has effect subject to such conditions and restrictions as the Commissioners think fit.]
(2)The Commissioners may at any time for reasonable cause revoke or vary the terms of any approval given under this section.
(3). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .]