6.—(1) Each of numbered works 1, 3A, 4, 5, 6 and 7 of the authorised development must not commence until written details of all proposed permanent and temporary fences, walls or other means of enclosure for that numbered work have been submitted to and approved by Central Bedfordshire Council.
(2) Numbered work 2A of the authorised development must not commence until written details of any proposed permanent fence or other means of enclosure for that numbered work have been submitted to and approved by Central Bedfordshire Council (and approved by Network Rail in accordance with paragraph 68 of Schedule 10).
(3) Any construction sites must remain securely fenced at all times during construction of the authorised development.
(4) The fencing and other means of enclosure must be constructed and maintained in accordance with the approved details.