What is Annex I of MARPOL 73/78 (Regulation for the Prevention of Pollution by Oil) and discharge regulations?

 For all vessels

 Controls of operational discharge of oil Discharge outside special areas

Any discharge into the sea of oil or oily mixtures from ships of 400 GT and above shall be prohibited except when all the following conditions are satisfied.

1. The ship is proceeding enroute.
2. The oily mixture is processed through an oil filtering equipment.
3. The oil content of the effluent without dilution does not exceed 15ppm.
4. The oily mixture does not originate from cargo pump room bilges on oil tankers and.
5. The oily mixture, in case of oil tankers is not mixed with oil cargo residues.

Discharge in special areas

Any discharge into sea of oil or oily mixtures from ships 400 GT and above shall be prohibited except when all of the following conditions are satisfied:-