| 1 The provisions of this 
              Annex shall apply to the following ships engaged in international 
              voyages: 
               
                |  | .1 | new ships of 400 gross tonnage and above; 
                  and |   
                |  | .2 | new ships of less than 400 gross tonnage which 
                  are certified to carry more than 15 persons; and |   
                |  | .3 | existing ships of 400 gross tonnage and above, 
                  five years after the date of entry into force of this Annex; 
                  and |   
                |  | .4 | existing ships of less than 400 gross tonnage 
                  which are certified to carry more than 15 persons, five years 
                  after the date of entry into force of this Annex. |  2 The Administration shall 
              ensure that existing ships, according to subparagraphs 1.3 and 1.4 
              of this regulation, the keels of which are laid or which are of 
              a similar stage of construction before 2 October 1983 shall be equipped, 
              as far as practicable, to discharge sewage in accordance with the 
              requirements of regulation 11 of the Annex. |