33 CFR § 165.33 - General regulations.

---
identifier: "/us/cfr/t33/s165.33"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "33 CFR § 165.33 - General regulations."
title_number: 33
title_name: "Navigation and Navigable Waters"
section_number: "165.33"
section_name: "General regulations."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "P"
subchapter_name: "PORTS AND WATERWAYS SAFETY"
part_number: "165"
part_name: "REGULATED NAVIGATION AREAS AND LIMITED ACCESS AREAS"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "46 U.S.C. 70034, 70051, 70124; 33 CFR 1.05-1, 6.04-1, 6.04-6, and 160.5; DHS Delegation No. 00170.1, Revision No. 01.4."
regulatory_source: "CGD 79-034, 47 FR 29660, July 8, 1982, unless otherwise noted."
cfr_part: "165"
---


# 165.33 General regulations.

Unless otherwise provided in the special regulations in subpart F of this part:

(a) No person or vessel may enter or remain in a security zone without the permission of the Captain of the Port;

(b) Each person and vessel in a security zone shall obey any direction or order of the Captain of the Port;

(c) The Captain of the Port may take possession and control of any vessel in the security zone;

(d) The Captain of the Port may remove any person, vessel, article, or thing from a security zone;

(e) No person may board, or take or place any article or thing on board, any vessel in a security zone without the permission of the Captain of the Port; and

(f) No person may take or place any article or thing upon any waterfront facility in a security zone without the permission of the Captain of the Port.