For oily-water separating equipment for machinery space
bilges of ships, refer to the Guidelines and specifications for pollution
prevention equipment for machinery space bilges adopted by the Marine
Environment Protection Committee of the Organization by resolution MEPC.60(33), which, effective
on 6 July 1993, superseded resolution A.393(X). For oil discharge
monitoring and control systems installed on oil tankers built before
2 October 1986, refer to the Guidelines and specifications for oil
discharge monitoring and control systems for oil tankers, and for
oil discharge monitoring and control systems installed on oil tankers
built on or after 2 October 1986, refer to the Revised guidelines
and specifications for oil discharge monitoring and control systems,
which were adopted by the Organization by resolutions A.496(XII) and
A.586(14), respectively. There may be ships operating with oily-water
separators (100 ppm) until 6 July 1998.