---
kind: "section"
citation: "46 C.F.R. § 140.630"
title: "46"
number: "140.630"
heading: "Lookout."
url: "https://uscodex.org/cfr/46/140.630"
---

# §140.630. Lookout.

- (a) Throughout the trip or voyage the master and officer in charge of the navigational watch must assess the requirement for a lookout, consistent with [33 CFR 83.05](/cfr/33/83.05.md). A lookout in addition to the master or mate (pilot) should be added when necessary to:
  - (1) Maintain a state of vigilance with regard to any significant change in the operational environment;
  - (2) Assess the situation and the risk of collision/allision;
  - (3) Anticipate stranding and other dangers to navigation; and
  - (4) **Detect any other potential hazards to safe navigation.**
- (b) In determining the requirement for a lookout, the officer in charge of the navigational watch must take full account of relevant factors including, but not limited to: state of weather, visibility, traffic density, proximity of dangers to navigation, and the attention necessary when navigating in areas of increased vessel traffic.

## Notes

### Authority

Authority: 46 U.S.C. 3103, 3301, 3306, 3308, 3316, 8104, 8904; 33 CFR 1.05; DHS Delegation 0170.1.

### Source

Source: USCG-2006-24412, 81 FR 40101, June 20, 2016, unless otherwise noted.