Introduction | Annex I | Annex II | Annex III | Annex IV | Annex V | Annex VI | Additional Information
Annex IV
 
Chapter 1 - General
 
1 Definitions
2 Application
3 Exceptions
 
Chapter 2 - Surveys and certification
 
4 Surveys
5 Issue or endorsement of a Certificate
6 Issue or endorsement of a Certificate by another Government
7 Form of Certificate
8 Duration and validity of Certificate
 
Chapter 3 - Equipment and control of discharge
 
9 Sewage systems
10 Standard discharge connections
11 Discharge of sewage
 
Chapter 4 - Reception facilities
 
12 Reception facilities
 
Appendix - Form of International Sewage Pollution Prevention Certificate

Annex IV- Regulations for the Prevention of Pollution by Sewage from Ships

Chapter 3 - Equipment and control of discharge
Regulation 9 - Sewage systems

1 Every ship which, in accordance with regulation 2, is required to comply with the provisions of this Annex shall be equipped with one of the following sewage systems:

  .1 a sewage treatment plant which shall be of a type approved by the Administration, taking into account the standards and test methods developed by the Organization,* or
  .2 a sewage comminuting and disinfecting system approved by the Administration. Such system shall be fitted with facilities to the satisfaction of the Administration, for the temporary storage of sewage when the ship is less than 3 nautical miles from the nearest land, or
  .3 a holding tank of the capacity to the satisfaction of the Administration for the retention of all sewage, having regard to the operation of the ship, the number of persons on board and other relevant factors. The holding tank shall be constructed to the satisfaction of the Administration and shall have a means to indicate visually the amount of its contents.

* Refer to the Recommendation on international effluent standards and guidelines for performance tests for sewage treatment plants adopted by the Marine Environment Protection Committee of the Organization by resolution MEPC.2(VI). For existing ships, national specifications are acceptable.