1(1)Any person duly authorised in writing by the Historic Buildings and Monuments Commission for England (“the Commission”) may at any reasonable time enter any land on which (or in or under which) a scheduled monument (within the meaning of the Ancient Monuments and Archaeological Areas Act 1979 (c. 46)) is situated—U.K.
(a)for the purpose of observing or advising upon the exercise in relation to the land of any of the powers conferred by paragraph 9 of Schedule 2 above, or
(b)for the purpose of inspecting, observing or advising upon the carrying out of any works on the land in exercise of any of the other powers conferred by this Act.
(2)Any person duly authorised in writing by the Commission may at any reasonable time enter any land in Greater London for the purpose of inspecting or observing the carrying out in relation to any building on the land of any decontrolled works.
(3)The right conferred by sub-paragraph (1) or (2) shall not be exercisable at a time when the nominated undertaker reasonably considers that it is not safe to exercise it.
(4)A person exercising the right conferred by sub-paragraph (1) or (2) shall comply with any directions given by the nominated undertaker for the purpose of securing compliance with relevant health and safety provisions.
(5)In this paragraph, “decontrolled works” means works to which section 7 or 74 of the Planning (Listed Buildings and Conservation Areas) Act 1990 (c. 9) would apply, but for paragraph 1(1)(a), (3) or (4) or 2(1)(a) of Schedule 9 to this Act.