{"data":{"id":"us/33-cfr-101.645","jurisdiction":"us","citation":"33 CFR 101.645","heading":"Communications.","body":"(a) The CySO must have a means to effectively notify owners or operators and personnel of a U.S.-flagged vessel, facility, or OCS facility of changes in cybersecurity conditions at the U.S.-flagged vessel, facility, and OCS facility and document these means in Section 5 of the Cybersecurity Plan.\n(b) Communication systems and procedures must allow effective and continuous communications between U.S.-flagged vessel, facility, and OCS facility security personnel, vessels interfacing with a facility or an OCS facility, the cognizant COTP, and national and local authorities with security responsibilities.","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 F—Cybersecurity"],"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":"208b188339441450e5e9fef0f5c27085f9067aff0c6b512aecf9cecd0a56a459","source_id":"us-cfr","stale":true,"prev":"us/33-cfr-101.640","next":"us/33-cfr-101.650"},"notice":"GroundRules: Original legal text. Not legal advice."}