Code of Federal Regulations (Last Updated: July 5, 2024) |
Title 46 - Shipping |
Chapter I - Coast Guard, Department of Homeland Security |
SubChapter Q - Equipment, Construction, and Materials: Specifications and Approval |
Part 161 - Electrical Equipment |
Subpart 161.013 - Electric Distress Light for Boats |
§ 161.013-7 - Signal requirements.
Latest version.
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§ 161.013-7 Signal requirements.
(a) An electric light must have a flash characteristic of the International Morse Code for S-O-S and, under design conditions,
(1) Each short flash must have a duration of 1⁄3 second;
(2) Each long flash must have a duration of 1 second;
(3) The dark period between each short flash must have a duration of 1⁄3 second;
(4) The dark period between each long flash must have a duration of 1⁄3 second;
(5) The dark period between each letter must have a duration of 2 seconds;
(6) The dark period between each
S-O-S signal must have a duration of 3 seconds.
(b) The flash characteristics described in paragraph (a) must be produced automatically when the signal is activated.