(b) examining any facility that is, or might be, used for the storage of fuel at the premises concerned in a quantity exceeding the limit prescribed for the purposes of section 22; or
(c) so far as section 22 is concerned--examining any vessel or vehicle or plant, found at the premises concerned, for the operation of which fuel is required; or
(d) as far as section 23 is concerned--examining fuel that is being transported by the vehicle concerned; or
(e) so far as section 24 is concerned--examining fuel that is being transported by the vessel concerned; or
(f) taking samples of any fuel found in such a receptacle, vehicle, vessel or plant.