33 CFR § 147.871 - Safety Zone, Constitution Spar, Outer Continental Shelf Facility, Green Canyon 680, Gulf of America.

---
identifier: "/us/cfr/t33/s147.871"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "33 CFR § 147.871 - Safety Zone, Constitution Spar, Outer Continental Shelf Facility, Green Canyon 680, Gulf of America."
title_number: 33
title_name: "Navigation and Navigable Waters"
section_number: "147.871"
section_name: "Safety Zone, Constitution Spar, Outer Continental Shelf Facility, Green Canyon 680, Gulf of America."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "N"
subchapter_name: "OUTER CONTINENTAL SHELF ACTIVITIES"
part_number: "147"
part_name: "SAFETY ZONES"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "14 U.S.C. 544; 43 U.S.C. 1333; 33 CFR 1.05-1; Department of Homeland Security Delegation No. 00170.1, Revision No. 01.4."
regulatory_source: "CGD 78-160, 47 FR 9386, Mar. 4, 1982, unless otherwise noted."
cfr_part: "147"
---


# 147.871 Safety Zone, Constitution Spar, Outer Continental Shelf Facility, Green Canyon 680, Gulf of America.

(a) *Description.* The Constitution Spar is in the deepwater area of the Gulf of America at Green Canyon Block 680. The facility is located at 27°17′31.92″ N, 90°58′4.8″ W, (NAD 83) and the area within 500 meters (1640.4 feet) from each point on the facility structure's outer edge is a safety zone.

(b) *Regulation.* No vessel may enter or remain in the safety zone described in paragraph (a) of this section except for the following:

(1) An attending vessel, as defined in 147.20

(2) A vessel under 100 feet in length overall not engaged in towing; or

(3) A vessel authorized by the Commander, USCG Heartland District or a designated representative.

(c) *Requests for Permission.* Persons or vessels requiring authorization to enter the safety zone described in paragraph (a) of this section must request permission from the Commander, USCG Heartland District or a designated representative. If permission is granted, all persons and vessels shall comply with the instructions of the Commander or designated representative.

[88 FR 22914, Apr. 14, 2023]