---
kind: "section"
citation: "33 C.F.R. § 167.400"
title: "33"
number: "167.400"
heading: "Off San Francisco Traffic Separation Scheme: General."
url: "https://uscodex.org/cfr/33/167.400"
---

# §167.400. Off San Francisco Traffic Separation Scheme: General.


The Off San Francisco Traffic Separation Scheme consists of six parts: a Precautionary Area, a Northern Approach, a Southern Approach, a Western Approach, a Main Ship Channel, and an Area To Be Avoided. The specific areas in the Off San Francisco TSS and Precautionary Area are described in [§§ 167.401 through 167.406](/cfr/33/167.401..167.406.md) of this chapter. The geographic coordinates in [§§ 167.401 through 167.406](/cfr/33/167.401..167.406.md) are defined using North American Datum 1983 (NAD 83).


## Notes

### Source

Source: USCG-1999-5700, 65 FR 46605, July 31, 2000, unless otherwise noted.

### Authority

Authority: 46 U.S.C. 70001, 70003; Department of Homeland Security Delegation No. 0170.0.

### Source

Source: CGD 81-080, 48 FR 36456, Aug. 11, 1983, unless otherwise noted.