Article 55  SCHEDULE 12  DEEMED MARINE LICENCE  PART 1  GENERAL  Interpretation  ( a ) 1981 c.56.  114 1.  In this licence—  “the 2008 Act” means the Planning Act 2008;  “the 2009 Act” means the Marine and Coastal Access Act 2009;  “AB Ports” means Associated British Ports, company reference number ZC000195, whose  registered office address is 25 Bedford Street, London WC2E 9ES;  “the authorised development” has the meaning given in paragraph 3(2);  “commence” means beginning to carry out any part of a licensed activity and “commenced”  and “commencement” are to be construed accordingly;  “condition” means a condition in Part 2, Part 3 and Part 4 of this licence;  “construction activity” means—  “capital dredging activity” means an activity which comprises the excavation of the seabed, in  an area or down to a level (relative to Ordnance Datum) not previously dredged during the  preceding 10 years;  “the environmental statement” means the documents of that description as reference in  Schedule 14 (documents to be certified) to the Order, certified by the Secretary of State for the  purposes of the Order;  “the harbour authority” means AB Ports in its role as the owner and operator of, and the  statutory harbour authority for, Lowestoft Harbour as established by section 8 of, and  paragraph 2 of Schedule 3 to the Transport Act 1981( a );  “the harbour master” has the same meaning as is given to that term in article 2 of the Order;  “Lake Lothing” means the navigable saltwater lake within the town of Lowestoft in the area of  East Suffolk Council between the North Sea and Oulton Broad, as identified by reference  points 652111E, 292801N, 655207E, 292615N respectively;  “the licence holder” means the undertaker or any transferee under article 49 (transfer of  benefit of Order, etc) of the Order;  “licensed activity” means any of the activities specified in Part 1 of this licence;  “maintenance dredging activity” means any activity which comprises the removal of recently- accumulated sediments such as mud, sand and gravel in order to keep channels, berths and  other areas at their designed depths and which takes place in circumstances where—  (a) the level of the seabed to be restored by the dredging is not lower than it has been at any  time during the past 10 years; and  (a) any licensed activity to be undertaken during the construction of the authorised  development; and  (b) any licensed activity to be undertaken for the purposes of maintaining the authorised  development, with the exception of any maintenance dredging activity; 