---
kind: "range"
citation: "33 C.F.R. §§ 167.401–167.406"
title: "33"
from: "167.401"
to: "167.406"
count: 6
url: "https://uscodex.org/cfr/33/167.401..167.406"
---

# §167.401. Off San Francisco: Precautionary area.

- (a)
  - (1) A precautionary area is established bounded to the west by an arc of a circle with a radius of 6 miles centering upon geographical position 37°45.00′ N, 122°41.50′ W and connecting the following geographical positions:
  - (2) **The precautionary area is bounded to the east by a line connecting the following geographic positions—**
- (b) A pilot boarding area is located near the center of the precautionary area described in [paragraph (a)](#a) of this section. Due to heavy vessel traffic, mariners are advised not to anchor or linger in this precautionary area except to pick up or disembark a pilot.

# §167.402. Off San Francisco: Northern approach.

- (a) **A separation zone is bounded by a line connecting the following geographical positions—**
- (b) A traffic lane for north-westbound traffic is established between the separation zone and a line connecting the following geographical positions:
- (c) A traffic lane for south-eastbound traffic is established between the separation zone and a line connecting the following geographical positions:

# §167.403. Off San Francisco: Southern approach.

- (a) **A separation zone is bounded by a line connecting the following geographical positions—**
- (b) A traffic lane for northbound traffic is established between the separation zone and a line connecting the following geographical positions:
- (c) A traffic lane for southbound traffic is established between the separation zone and a line connecting the following geographical positions:

# §167.404. Off San Francisco: Western approach.

- (a) **A separation zone is bounded by a line connecting the following geographical positions—**
- (b) A traffic lane for south-westbound traffic is established between the separation zone and a line connecting the following geographical positions:
- (c) A traffic lane for north-eastbound traffic is established between the separation zone and a line connecting the following geographical positions:

# §167.405. Off San Francisco: Main ship channel.

- (a) **A separation line connects the following geographical positions—**
- (b) A traffic lane for eastbound traffic is established between the separation line and a line connecting the following geographical positions:
- (c) A traffic lane for westbound traffic is established between the separation line and a line connecting the following geographical positions:

# §167.406. Off San Francisco: Area to be avoided.


A circular area to be avoided, with a radius of half of a nautical mile, is centered upon geographic position: