544 



(b) Periodical surveys at intervals specified by the Administra- 

 tion, but not exceeding five years, which shall be such as to ensure 

 that the structure, equipment, fittings, arrangements and material 

 fully comply with the applicable requirements of this Annex. 

 However, where the duration of the International Oil Pollution 

 Prevention Certificate (1973) is extended as specified in Regula- 

 tion 8(3) or (4) of this Annex, the interval of the periodical 

 survey may be extended correspondingly. 



(c) Intermediate surveys at intervals specified by the Adminis- 

 tration but not exceeding thirty months, which shall be such as 

 to ensure that the equipment and associated pump and piping sys- 

 tems, including oil discharge monitoring and control systems, 

 oily-water separating equipment and oil filtering systems, fully 

 comply with the applicable requirements of this Annex and are 

 in good working order. Such intermediate surveys shall be en- 

 dorsed on the International Oil Pollution Prevention Certificate 

 (1973) issued under Regulation 5 of this Annex. 



(2) The Administration shall establish appropriate measures for 

 ships which are not subject to the provisions of paragraph (1) of this 

 Regulation in order to ensure that the applicable provisions of this 

 Annex are complied with. 



(3) Surveys of the ship as regards enforcement of the provisions of 

 this Annex shall be carried out by officers of the Administration. The 

 Administration may, however, entrust the surveys either to surveyors 

 nominated for the purpose or to organizations recognized by it. In 

 every case the Administration concerned fully guarantees the com- 

 pleteness and efficiency of the surveys. 



(4) After any survey of the ship under this Regulation has been' 

 completed, no significant change shall be made in the structure, equip- 

 ment, fittings, arrangements or material covered by the survey without 

 the sanction of the Administration, except the direct replacement of 

 such equipment or fittings. 



REGULATION 5 



Issue of Certificate 



(1) An International Oil Pollution Prevention Certificate (1973) 

 shall be issued, after survey in accordance with the provisions of 

 Regulation 4 of this Annex, to any oil tanker of 150 tons gross tonnage 

 and above and any other ships of 400 tons gross tonnage and above 

 which are engaged in voyages to ports or offshore terminals under the 

 jurisdiction of other Parties to the Convention. In the case of existing 

 ships this requirement shall apply twelve months after the date of 

 entry into force of the present Convention. 



(2) Such Certificate shall be issued either by the Administration 

 or by any persons or organization duly authorized by it. In every case 

 the Administration assumes full responsibility for the certificate. 



REGULATION 6 



Issue of a Oertificate 'by Another Government 



(1) The Government of a Party to the Convention may, at the 

 request of the Administration, cause a ship to be surveyed and, if 

 satisfied that the provisions of this Annex are complied with, shall 



