1. (a) To discharge ballast water into waters of the United States, the master, owner, operator, agent, or person in charge of a vessel subject to § 151.2025 of this subpart must either ensure that the ballast water meets the ballast water discharge standard as defined in § 151.2030(a), use an AMS as described in § 151.2025(a)(3) or ballast exclusively with water from a U.S. public water system, as described in § 151.2025(a)(2), according to the schedule in paragraph (b) of this section.

2. (b) Implementation Schedule for the Ballast Water Management Discharge Standard for vessels using a Coast Guard approved BWMS to manage ballast water discharged to waters of the U.S. After the dates listed in Table 151.2035(b), vessels may use a USCG-approved BWMS and comply with the discharge standard, use PWS per § 151.2025(a)(2), or use a previously installed AMS per § 151.2025(a)(3).

   Table 151.2035(b)—Implementation Schedule for Approved Ballast Water Management Methods

   	Vessel's ballastwater capacity	Date constructed	Vessel's compliance date
   New vessels	All	On or after December 1, 2013	On delivery.
   Existing vessels	Less than 1500 m3	Before December 1, 2013	First scheduled drydocking after January 1, 2016.
   	1500-5000 m3	Before December 1, 2013	First scheduled drydocking after January 1, 2014.
   	Greater than 5000 m3	Before December 1, 2013	First scheduled drydocking after January 1, 2016.

[USCG-2001-10486, 77 FR 17306, Mar. 23, 2012, as amended by USCG-2015-0433, 80 FR 44281, July 27, 2015]