oil tankers of 5,000 tons deadweight and above and of 15 years and over after date of delivery of the ship, in accordance with regulation 20.6,
oil tankers subject to the provisions of regulation 20.7, where authorization is requested for continued service beyond the anniversary of the date of delivery of the ship in 2010, and
oil tankers of 5,000 tons deadweight and above and of 15 years and over after date of delivery of the ship, carrying crude oil as cargo having at 15°C a density at 15°C higher than 900 kg/m3 but lower than 945 kg/m3 , in accordance with regulation 21.6.1.
