33 C.F.R. § 67.10-40 Sound signals authorized for use prior to January 1, 1973.
Title 33 - Navigation and Navigable Waters
Any sound signal authorized for use by the Coast Guard and manufactured prior to January 1, 1973, is excepted from the requirements in this subpart, except §§67.10–1 (b) and (c), 67.10–5, and 67.10–10, if the sound signal has a minimum sound pressure level as specified in Table A of Subpart 67.10 of Title 33 of the Code of Federal Regulations in effect on December 31, 1972, for the range required by §67.20–10, §67.25–10, or §67.30–10.
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
§ 67.10-40 Sound signals authorized for use prior to January 1, 1973.
