33 CFR § 167.1321 - In Puget Sound and its approaches: Rosario Strait.

---
identifier: "/us/cfr/t33/s167.1321"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "33 CFR § 167.1321 - In Puget Sound and its approaches: Rosario Strait."
title_number: 33
title_name: "Navigation and Navigable Waters"
section_number: "167.1321"
section_name: "In Puget Sound and its approaches: Rosario Strait."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "P"
subchapter_name: "PORTS AND WATERWAYS SAFETY"
part_number: "167"
part_name: "OFFSHORE TRAFFIC SEPARATION SCHEMES"
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. 70001, 70003; Department of Homeland Security Delegation No. 0170.0."
regulatory_source: "CGD 81-080, 48 FR 36456, Aug. 11, 1983, unless otherwise noted."
cfr_part: "167"
---


# 167.1321 In Puget Sound and its approaches: Rosario Strait.

In Rosario Strait, the following are established:

(a) A separation zone bounded by a line connecting the following geographical positions:

|  |  |
| --- | --- |
|  |  |
| 48°48.98′ N | 122°55.20′ W |
| 48°46.76′ N | 122°50.43′ W |
| 48°45.56′ N | 122°48.36′ W |
| 48°45.97′ N | 122°48.12′ W |
| 48°46.39′ N | 122°50.76′ W |
| 48°48.73′ N | 122°55.68′ W |

(b) A traffic lane for northbound traffic located within the separation zone described in paragraph (a) of this section and a line connecting the following geographical positions:

|  |  |
| --- | --- |
|  |  |
| 48°49.49′ N | 122°54.24′ W |
| 48°47.14′ N | 122°50.10′ W |
| 48°46.35′ N | 122°47.50′ W |

(c) A traffic lane for southbound traffic located within the separation zone described in paragraph (a) of this section and a line connecting the following geographical positions:

|  |  |
| --- | --- |
|  |  |
| 48°44.95′ N | 122°48.28′ W |
| 48°46.76′ N | 122°53.10′ W |
| 48°47.93′ N | 122°57.12′ W |

(d) Precautionary area “CA” contained within a circle of radius 1.24 miles centered at geographical position 48°45.30′ N, 122°46.50′ W.

(e) A separation zone bounded by a line connecting the following geographical positions:

|  |  |
| --- | --- |
|  |  |
| 48°44.27′ N | 122°45.53′ W |
| 48°41.72′ N | 122°43.50′ W |
| 48°41.60′ N | 122°43.82′ W |
| 48°44.17′ N | 122°45.87′ W |

(f) A traffic lane for northbound traffic located within the separation zone described in paragraph (e) of this section and a line connecting the following geographical positions:

|  |  |
| --- | --- |
|  |  |
| 48°44.62′ N | 122°44.96′ W |
| 48°41.80′ N | 122°42.70′ W |

(g) A traffic lane for southbound traffic located within the separation zone described in paragraph (e) of this section and a line connecting the following geographical positions:

|  |  |
| --- | --- |
|  |  |
| 48°44.08′ N | 122°46.65′ W |
| 48°41.25′ N | 122°44.37′ W |

(h) Precautionary area “C” contained within a circle of radius 1.24 miles centered at geographical position 48°40.55′ N, 122°42.80′ W.

(i) A two-way route between the following geographical positions:

|  |  |
| --- | --- |
|  |  |
| 48°39.33′ N | 122°42.73′ W |
| 48°36.08′ N | 122°45.00′ W |
| 48°26.82′ N | 122°43.53′ W |
| 48°27.62′ N | 122°45.53′ W |
| 48°29.48′ N | 122°44.77′ W |
| 48°36.13′ N | 122°45.80′ W |
| 48°38.38′ N | 122°44.20′ W |
| 48°39.63′ N | 122°44.03′ W |

(j) Precautionary area “RB” bounded as follows:

(1) To the north by the arc of a circle of radius 1.24 miles centered on geographical position 48°26.38′ N, 122°45.27′ W and connecting the following geographical positions:

|  |  |
| --- | --- |
|  |  |
| 48°25.97′ N | 122°47.03′ W |
| 48°25.55′ N | 122°43.93′ W |

(2) To the south by a line connecting the following geographical positions:

|  |  |
| --- | --- |
|  |  |
| 48°25.97′ N | 122°47.03′ W |
| 48°24.62′ N | 122°48.68′ W |
| 48°23.75′ N | 122°47.47′ W |
| 48°25.20′ N | 122°45.73′ W |
| 48°25.17′ N | 122°45.62′ W |
| 48°24.15′ N | 122°45.27′ W |
| 48°24.08′ N | 122°43.38′ W |
| 48°25.55′ N | 122°43.93′ W |

[USCG-2002-12702, 75 FR 70827, Nov. 19, 2010]