CFR > Title 33 - Navigation and Navigable Waters > CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY > SUBCHAPTER E—INLAND NAVIGATION RULES (parts 83 to 90) > PART 83—RULES > SUBPART D—Sound and Light Signals (§83.32 to §83.37) > 83.37—Distress signals (Rule 37).

83.37—Distress signals (Rule 37).

When a vessel is in distress and requires assistance she shall use or exhibit the signals described in Annex IV to these Rules.