Section 157.12 - Oil discharge monitoring and control system(a) Each vessel must have an oil discharge monitoring and control system (monitoring system) that is designed for use with each type of cargo oil that the vessel carries.(b) Each oil content meter component of the monitoring system installed on a U.S. vessel must be approved under 46 CFR part 162 , subpart 162.050. Each oil content meter component of the monitoring system installed on a foreign vessel must be approved: (1) Under 46 CFR part 162, subpart 162.050; or(2) As meeting IMO Marine Environment Protection Committee resolution MEPC.108(49) by a country that has ratified the MARPOL 73/78. Paragraph 1.2.2 of MEPC.108(49) provides, as to equipment installed in "oil tankers the keels of which are laid, or which are at a similar stage of construction, before January 1, 2005," for alternative compliance with IMO resolutions A.393(X), A.496(XII), MEPC.13(19), and A.586(14). These five resolutions are incorporated by reference (see§ 157.02 ).(c) Each oil discharge monitoring and control system on a U.S. vessel must be installed in accordance with §§ 157.12b through 157.12g of this part.USCG-2004-18939, 74 FR 3378, Jan. 16, 2009