SI 2019/893. The Marine Licensing (Exempted Activities) (Amendment) Order 2019. This Order amends the Marine Licensing (Exempted Activities) Order 2011 (S.I. 2011/409). Comes into force 31st May. These amendments introduce three new exemptions from the requirement to hold a marine licence. Those relate to the recovery of marine litter etc. in the course of diving activities (article 8), permitting harbour authorities to use vehicles or vessels to remove marine litter and debris (article 9) and permitting the deposit of a substance removed from the hull of a vessel in the course of certain removal methods (article 12).