Apparatus requirements.

§ 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.