Section 167.404 - Off San Francisco: Western approach(a) A separation zone is bounded by a line connecting the following geographical positions: | Latitude | Longitude |
| 37°41.90' N | 122°48.00' W. |
| 37°38.10' N | 122°58.10' W. |
| 37°36.50' N | 122°57.30' W. |
| 37°41.10' N | 122°47.20' W. |
(b) A traffic lane for south-westbound traffic is established between the separation zone and a line connecting the following geographical positions: | Latitude | Longitude |
| 37°42.80' N | 122°48.50' W. |
| 37°39.60' N | 122°58.80' W. |
(c) A traffic lane for north-eastbound traffic is established between the separation zone and a line connecting the following geographical positions: | Latitude | Longitude |
| 37°35.00' N | 122°56.50' W. |
| 37°40.40' N | 122°46.30' W. |