---
kind: "section"
citation: "14 C.F.R. § 25.1399"
title: "14"
number: "25.1399"
heading: "Riding light."
url: "https://uscodex.org/cfr/14/25.1399"
---

# §25.1399. Riding light.

- (a) Each riding (anchor) light required for a seaplane or amphibian must be installed so that it can—
  - (1) Show a white light for at least 2 nautical miles at night under clear atmospheric conditions; and
  - (2) **Show the maximum unbroken light practicable when the airplane is moored or drifting on the water.**
- (b) Externally hung lights may be used.

## Notes

### Authority

Authority: 49 U.S.C. 106(f), 106(g), 40113, 44701, 44702 and 44704; Pub. L. 115-254, 132 Stat 3281 (49 U.S.C. 44903 note).

### Source

Source: Docket No. 5066, 29 FR 18291, Dec. 24, 1964, unless otherwise noted.