Code of Federal Regulations Title 33. Navigation and Navigable Waters § 33.106.250 Declaration of Security (DoS)

(a) Each OCS facility owner or operator must ensure procedures are established for requesting a DoS and for handling DoS requests from vessels.

(b) At MARSEC Level 1, owners or operators of OCS facilities interfacing with a manned vessel carrying Certain Dangerous Cargoes, in bulk, must:

(c) Neither the OCS facility nor the vessel may embark or disembark personnel, or transfer stores or industrial supplies until the DoS has been signed.

(d) At MARSEC Levels 2 and 3, the FSOs of OCS facilities interfacing with manned vessels subject to part 104 of this chapter, or their designated representatives, must sign and implement DoSs as required in paragraphs (b)(1) and (b)(2) of this section.

(e) At MARSEC Levels 1 and 2, FSOs of OCS facilities that frequently interface with the same vessel may implement a continuing DoS for multiple visits, provided that:

(f) When the MARSEC Level increases beyond that contained in the DoS, the continuing DoS is void and a new DoS must be executed in accordance with this section.