6.—(1) The undertaker may at any time maintain the authorised development, except to the extent that this Order or an agreement made under this Order provides otherwise.
(2) Paragraph (1) does not extend to the highway works the maintenance of which is governed by article 14 (maintenance of highway works) and Parts 2 and 3 of Schedule 13 (protective provisions).
(3) Paragraph (1) does not extend to any maintenance works which would be likely to give rise to any materially new or materially different significant effects on the environment that have not been assessed in the environmental statement or in any updated environmental information supplied under the 2017 EIA Regulations.