{"data":{"id":"us/33-cfr-101.505","jurisdiction":"us","citation":"33 CFR 101.505","heading":"Declaration of Security (DoS).","body":"(a) The purpose of a DoS, as described in SOLAS Chapter XI-2, Regulation 10, and the ISPS Code (Incorporated by reference, see § 101.115), is to state the agreement reached between a vessel and a facility, or between vessels in the case of a vessel-to-vessel activity, as to the respective security measures each must undertake during a specific vessel-to-facility interface, during a series of interfaces between the vessel and the facility, or during a vessel-to-vessel activity.\n(b) Details as to who must complete a DoS, when a DoS must be completed, and how long a DoS must be retained are included in parts 104 through 106 of this subchapter. A DoS must, at a minimum, include the information found in the ISPS Code, part B, appendix 1 (Incorporated by reference, see § 101.115).\n(c) All vessels and facilities required to comply with parts 104, 105, and 106 of this subchapter must, at a minimum, comply with the DoS requirements of the MARSEC Level set for the port.\n(d) The COTP may also require a DoS be completed for vessels and facilities during periods of critical port operations, special marine events, or when vessels give notification of a higher MARSEC Level than that set in the COTP's Area of Responsibility (AOR).","path":["Title 33—Navigation and Navigable Waters","CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY","SUBCHAPTER H—MARITIME SECURITY","PART 101—MARITIME SECURITY: GENERAL","Subpart E—Other Provisions"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-33.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:25:35Z","sha256":"9a2db7727b5f75046dc496862b8088458f54f3de5e88baedb62bdb8c52758730","source_id":"us-cfr","stale":true,"prev":"us/33-cfr-101.500","next":"us/33-cfr-101.510"},"notice":"GroundRules: Original legal text. Not legal advice."}