(a) The following vessels are exempt from all of the requirements of this subpart:
(1) Any Department of Defense or Coast Guard vessel subject to the requirements of section 1103 of the Nonindigenous Aquatic Nuisance Prevention and Control Act, as amended by the National Invasive Species Act; or any vessel of the Armed Forces, as defined in the Federal Water Pollution Control Act (33 U.S.C. 1322(a)), that is subject to the ``Uniform National Discharge Standards for Vessels of the Armed Forces'' (33 U.S.C. 1322(n)).
(2) Any warship, naval auxiliary, or other vessel owned or operated by a foreign state and used, for the time being, only on government non-commercial service. However, such vessels should act in a manner consistent, so far as is reasonable and practicable, with this subpart.
(b) The following vessels are exempt from the requirements of Secs. 151.2025 (ballast water management (BWM) requirements), 151.2060 (reporting), and 151.2070 (recordkeeping) of this subpart:
(1) Crude oil tankers engaged in coastwise trade.
(2) Vessels that operate exclusively within one Captain of the Port (COTP) Zone.
(c) The following vessels are exempt only from the requirements of Sec. 151.2025 (BWM requirements) of this subpart:
(1) Seagoing vessels that operate in more than one COTP Zone, do not operate outside of the Exclusive Economic Zone (EEZ), and are less than or equal to 1,600 gross register tons or less than or equal to 3,000 gross tons (International Convention on Tonnage Measurement of Ships, 1969).
(2) Non-seagoing vessels.
(3) Vessels that take on and discharge ballast water exclusively in one COTP Zone.