3.—(1) The undertaker may at any time maintain the authorised project, except to the extent that this licence or an agreement made under this licence provides otherwise.
(2) No maintenance works whose likely effects on the environment require to be assessed in accordance with the EIA Regulations and are not assessed in the environmental statement may be carried out, unless otherwise approved by the MMO.
(3) Where the MMO’s approval is required under paragraph (2), approval may be given only where it has been demonstrated to the satisfaction of the MMO that the approval sought is unlikely to give rise to any materially new or materially different environmental effects from those assessed in the environmental statement.