33 CFR § 156.310 - Prohibited areas.

---
identifier: "/us/cfr/t33/s156.310"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "33 CFR § 156.310 - Prohibited areas."
title_number: 33
title_name: "Navigation and Navigable Waters"
section_number: "156.310"
section_name: "Prohibited areas."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "O"
subchapter_name: "POLLUTION"
part_number: "156"
part_name: "OIL AND HAZARDOUS MATERIAL TRANSFER OPERATIONS"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "33 U.S.C. 1321(j); 46 U.S.C. 3703, 3703a, 3715, 70011, 70034; E.O. 11735, 3 CFR 1971-1975 Comp., p. 793; Department of Homeland Security Delegation No. 00170.1, Revision No. 01.2."
cfr_part: "156"
---


# 156.310 Prohibited areas.

Lightering operations and STS Operations are prohibited within the following areas in the Gulf of America:

(a) *Claypile—prohibited area.* This prohibited area consists of the waters bounded by a line connecting the following points beginning at:

|  |  |
| --- | --- |
|  |  |
| 28°15′00″, | 94°35′00″, thence to |
| 27°40′00″, | 94°35′00″, thence to |
| 27°40′00″, | 94°00′00″, thence to |
| 28°33′00″, | 94°00′00″, and thence to the point of beginning. |

(NAD 83)

(b) *Flower Garden—prohibited area.* This prohibited area consists of the waters bounded by a line connecting the following points beginning at:

|  |  |
| --- | --- |
|  |  |
| 27°40′00″, | 94°00′00″, thence to |
| 28°18′00″, | 94°00′00″, thence to |
| 28°18′00″, | 92°38′00″, thence to |
| 28°30′00″, | 92°38′00″, thence to |
| 28°15′00″, | 91°30′00″, thence to |
| 27°40′00″, | 91°30′00″, and thence to the point of beginning. |

(NAD 83)

(c) *Ewing—prohibited area.* This prohibited area consists of the waters bounded by a line connecting the following points beginning at:

|  |  |
| --- | --- |
|  |  |
| 27°53′00″, | 91°30′00″, thence to |
| 28°15′00″, | 91°30′00″, thence to |
| 28°15′00″, | 90°10′00″, thence to |
| 27°53′00″, | 90°10′00″, and thence to the point of beginning. |

(NAD 83)

[CGD 93-081, 60 FR 45017, Aug. 29, 1995, as amended by USCG-2010-0194, 80 FR 5935, Feb. 4, 2015]