---
kind: "section"
citation: "33 C.F.R. § 67.05-5"
title: "33"
number: "67.05-5"
heading: "Multiple obstruction lights."
url: "https://uscodex.org/cfr/33/67.05-5"
---

# §67.05-5. Multiple obstruction lights.


When more than one obstruction light is required by this part to mark a structure, all such lights shall be operated to flash in unison.


## Notes

### Authority

Authority: 14 U.S.C. 503, 544; 43 U.S.C. 1333; DHS Delegation No. 00170.1, Revision No. 01.4.

### Source

Source: CGFR 58-17, 23 FR 3377, May 20, 1958, unless otherwise noted.