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33 C.F.R. § 67.10-1   Apparatus requirements.

Title 33 - Navigation and Navigable Waters

Title 33: Navigation and Navigable Waters
PART 67—AIDS TO NAVIGATION ON ARTIFICIAL ISLANDS AND FIXED STRUCTURES
Subpart 67.10—General Requirements for Sound signals

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§ 67.10-1   Apparatus requirements.

The sound signal required by §§67.20–10, 67.25–10, and 67.30–10 must:

(a) Have its maximum intensity at a frequency between 100 and 1,100 Hertz;

(b) Sound a 2-second blast every 20 seconds (2 seconds sound, 18 seconds silence) unless otherwise authorized by the District Commander;

(c) Have the rated range required by §67.20–10, §67.25–10, or §67.30–10;

(d) Have a height not exceeding 25 feet;

(e) Have not more than eight sound sources;

(f) Be approved by the Coast Guard under §67.10–15; and

(g) Be permanently marked with:

(1) The date of Coast Guard approval;

(2) The manufacturer and date of manufacture;

(3) A model designation;

(4) The approved range; and

(5) The power necessary to comply with the provisions of paragraph (c) of this section.

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