California – New biofouling regulations, effective on 1 October 2017.


(Join our newsfeed at: Dear fellow Maritime professionals. The State of California has not forgotten us (like many of us thought). In order to keep everyone busy, and in parallel keep the State treasury full, the California State Lands Commission (SLC) has just reminded everyone that the new Biofouling State regulations become effective on 1 October 2017. These regulations adopt a new annual vessel reporting form and require development of a biofouling management plan and related recordkeeping.

The provisions that will become effective on October 1, 2017, are:

  • Repeal of the reporting requirements for the Hull Husbandry Reporting Form, the Ballast Water Treatment Supplemental Reporting Form and the Ballast Water Treatment Annual Reporting Form.
  • Adoption of the Marine Invasive Species Program Annual Vessel Reporting Form

The remaining requirements will be applicable after a vessel’s first regularly scheduled out-of-water maintenance (i.e. dry dock) after January 1, 2018, or upon delivery on or after January 1, 2018, including requirements for:

  • Developing and maintaining a Biofouling Management Plan [see section 2298.3]
  • Developing and maintaining a Biofouling Record Book [see section 2298.4]
  • Mandatory biofouling management of the vessel’s wetted surfaces [see section 2298.6]
  • Mandatory biofouling management for vessels that undergo an extended residency period (i.e., remain in the same location for 45 or more days) [see section 2298.7]

Relevant rulemaking documents are located on the Commission’s website at

If you have any additional questions, please contact Chris Scianni at or (562) 499-6390 or refer to the Commission’s web page at

Good luck everyone!

Source: California State Lands Commission (SLC) 


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