---
kind: "section"
citation: "46 C.F.R. § 25.10-3"
title: "46"
number: "25.10-3"
heading: "Navigation light certification requirements."
url: "https://uscodex.org/cfr/46/25.10-3"
---

# §25.10-3. Navigation light certification requirements.

- (a) **Except as provided by paragraph (b) of this section, each navigation light must—**
  - (1) Meet the technical standards of the applicable Navigation Rules;
  - (2) Be certified by a laboratory listed by the Coast Guard to the standards of ABYC A-16 (incorporated by reference, see [§ 25.01-3](/cfr/46/25.01-3.md)), or equivalent, although portable battery-powered lights need only meet the requirements of the standard applicable to them; and
  - (3) **Bear a permanent and indelible label stating the following—**
    - (i) “USCG Approval [33 CFR 183.810](/cfr/33/183.810.md)”
    - (ii) “MEETS __.” (Insert the identification name or number of the standard under [paragraph (a)(2)](#a-2) of this section, to which the light was type-tested.)
    - (iii) “TESTED BY __.” (Insert the name or registered certification-mark of the laboratory listed by the Coast Guard that tested the fixture to the standard under [paragraph (a)(2)](#a-2) of this section.)
    - (iv) **Name of Manufacturer.**
    - (v) **Number of Model.**
    - (vi) **Visibility of the light in nautical miles (nm).**
    - (vii) **Date on which the light was type-tested.**
    - (viii) **Identification of bulb used in the compliance test.**
- (b) If a light is too small to attach the required label—
  - (1) Place the information from the label in or on the package that contains the light; and
  - (2) Mark each light “USCG” followed by the certified range of visibility in nautical miles, for example, “USCG 2nm.” Once installed, this mark must be visible without removing the light.

## Notes

### Source

Source: USCG-1999-6580, 66 FR 55091, Nov. 1, 2001, unless otherwise noted.

### Authority

Authority: 33 U.S.C. 1903(b); 46 U.S.C. 2103, 3306, 4102, 4302; DHS Delegation 00170.1, Revision No. 01.4.

### Source

Source: CGFR 65-50, 30 FR 16653, Dec. 30, 1965, unless otherwise noted.