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33 U.S.C. 1903; 46 U.S.C. 3703, 3703a (note); Department of Homeland Security Delegation No. 0170.1. Subparts G, H, and I are also issued under section 4115(b), Pub. L. 101-380, 104 Stat. 520; Pub. L. 104-55, 109 Stat. 546.
CGD 74-32, 40 FR 48283, Oct. 14, 1975, unless otherwise noted.
CGD 77-058b, 45 FR 43714, June 30, 1980, unless otherwise noted.
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Subscribe to: 33 CFR 157.222
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Nomenclature changes to part 157 appear by USCG-2008-0179, 73 FR 35015, June 19, 2008.
(a) Dedicated clean ballast tanks must be connected to the least practicable:
(1) Number of pumps; and
(2) Amount of piping.
(b) Each piping system that is arranged to convey clean ballast and cargo must be designed to be flushed to the slop tank with water.
(c) The piping system of each dedicated clean ballast tank must be arranged so that oily water does not enter any dedicated clean ballast tank when the piping system is flushed.
(d) The piping system of each dedicated clean ballast tank must have at least two valves that isolate that tank from each cargo tank.
(e) The piping system of the dedicated clean ballast tanks must have a sample point that is located in a vertical section of discharge piping.
An example of a sample point is shown in 46 CFR Figure 162.050-17(e).