Which of the following vessels is NOT exempt from mandatory requirements on ballast water management for control of non-indigenous species in waters of the United States?
• Ballast Water Management regulations in 33 CFR Part 151, Subparts C and D • Which vessel types are specifically exempt (not covered) versus those that are subject to ballast water rules • Difference between a vessel having a treatment system installed and a vessel being legally exempt from the regulations
• Look at each choice and ask: Is this vessel type specifically named in the regulations as exempt from ballast water management requirements? • Consider whether military/armed forces vessels are treated differently under U.S. environmental and shipping laws than commercial vessels. • Think about whether simply installing a USCG‑approved ballast treatment system makes a vessel exempt from the ballast water regulations, or brings it into compliance with them.
• Check which vessels are expressly exempt in 33 CFR 151.2015 (for example: Department of Defense/Coast Guard vessels, crude oil tankers engaged in specified trades, certain non-seagoing vessels, etc.). • Verify whether a vessel engaged in the foreign export of Alaskan North Slope crude oil is listed as an exemption category. • Confirm that a vessel with a USCG‑approved ballast water management system is generally complying with the rule, not exempt from it.
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