In Rosario Strait, the following are established:
(a) A separation zone bounded by a line connecting the following geographical positions:
| Latitude | Longitude |
| 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:
| Latitude | Longitude |
| 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:
| Latitude | Longitude |
| 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:
| Latitude | Longitude |
| 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:
| Latitude | Longitude |
| 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:
| Latitude | Longitude |
| 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:
| Latitude | Longitude |
| 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:
| Latitude | Longitude |
| 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:
| Latitude | Longitude |
| 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]