33 CFR § 67.10-40 - Sound signals authorized for use prior to January 1, 1973.
---
identifier: "/us/cfr/t33/s67.10-40"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "33 CFR § 67.10-40 - Sound signals authorized for use prior to January 1, 1973."
title_number: 33
title_name: "Navigation and Navigable Waters"
section_number: "67.10-40"
section_name: "Sound signals authorized for use prior to January 1, 1973."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "C"
subchapter_name: "AIDS TO NAVIGATION"
part_number: "67"
part_name: "AIDS TO NAVIGATION ON ARTIFICIAL ISLANDS AND FIXED STRUCTURES"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "14 U.S.C. 503, 544; 43 U.S.C. 1333; DHS Delegation No. 00170.1, Revision No. 01.4."
regulatory_source: "CGFR 58-17, 23 FR 3377, May 20, 1958, unless otherwise noted."
cfr_part: "67"
---
# 67.10-40 Sound signals authorized for use prior to January 1, 1973.
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.