104 
with procedures established by the Organization which shall satisfy the con- 
ditions of Regulation 9(1)(a) of this Annex except the obligation to have an 
oil discharge monitoring and control system in operation. The Organization 
prem ia the availability of equipment at intervals not exceeding twelve 
months. 
(7) The requirements of paragraphs (1), (2) and (3) of this Regulation 
shall not apply to oil tankers carrying asphalt, for which the control of discharge 
of asphalt under Regulation 9 of this Annex shall be effected by the retention of 
asphalt residues on board with discharge of all contaminated washings to recep- 
tion facilities. 
Regulation 16 
OIL DISCHARGE MONITORING AND CONTROL SYSTEM AND OILY WATER SEPARATING 
EQUIPMENT 
(1) Any ship of 400 tons gross tonnage and above shall be fitted with an oily 
water separating equipinent or filtering system complying with the provisions of 
paragraph (6) of this Regulation. Any such ship which carries large quantities 
of oil fuel shall comply with paragraph (2) of this Regulation or paragraph (1) 
of Regulation 14. 
(2) Any ship of 10,000 tons gross tonnage and above shall be fitted: 
(a) In addition to the requirements of paragraph (1) of this Regulation with 
an oil discharge monitoring and cuntrol system complying with paragraph (5) 
of this Regulation; or 
(vb) As an alternative to the requirements of paragraph (1) and sub-paragraph 
(2) (a) of this Regulation, with an vily water separating equipment complying 
with paragraph (6) of this Regulation and an effective filtering system, comply- 
ing with paragraph (7) of this Regulation. 
(3) The Adininistration shall ensure that that ships of less than 400 tons ¢ross 
tonnage are equipped, as far as practicable, to retain on board oil or oily Mix- 
tures or discharge them in accordance with the requirements of Regulation 
9(1) (b) of this Annex. 
(4) For existing ships the requirements of paragraphs (1), (2) and (3) of this 
Regulation shall apply three years after the date of entry into force of the 
present Convention. 
(5) An oil discharge monitoring and control system shall be of a design ap- 
proved by the Administration. In considering the design of the oil content meter 
to he ineorporated into the system, the Administration shall have regard to the 
specification recommended by the Organization.’ The system shall be fitted with a 
recording device to provide a continuous record of the oil content in parts per 
million. This record shall be identifiable as to time and date and shall be Kept 
for at least three years, The monitoring and control system shall come into oper- 
ation when there is any discharge of effluent into the sea and shall be such us 
will ensure that any discharge of oily mixture is automatically stopped when the 
oil content of effluent exceeds that permitted by Regulation 9(1)(b) > of this 
Annex. Any failure of this monitoring and control system shall stop the dis- 
charge and be noted in the Oil Record Book. The defective unit shall be made 
operable before the ship commences its next voyage unless it is proceeding to 2 
repair port. Existing ships shall comply with all of the provisions specified above 
except that the stopping of the discharge may be performed manually. 
(6) Oily water separating equipment or an oil filtering system shal] be of a 
design approved by the Administration and shall be such as will ensure that any 
oily mixture discharged into the sea after passing through the separator or 
filtering systems shall have an oil content of not more than 100 parts per mil- 
lion. In considering the design of such equipment. the Administration shall have 
regard to the specification reeommended by the Organization.’ 
(7) The oil filtering system referred to in paragraph (2) ¢b) of this Reeulation 
shall be of a design approved by the Administration and shall be such that it will 
accept the discharge from the separating system and produce an effluent the oil 
content of which does not exceed 15 parts per million. Tt shall be provided with 
alarm arrangements to indicate when this level cannot be maintained. 
1 Reference is made to the Recommendation on International Performance Sneeifications 
for Oily-Water Separating Equipment and Oi] Content Meters adopted by the Organization 
by Resolution A.233(VIT). 
> Reference is made to the Recommendation on Tnternational Performance Specifications 
for Oily-Water Separating Equipment and Oil Content Meters adopted by the Organization 
by Resolution A.285 (VII). 
