2 Colo. Code Regs. § 405-2-220
Current through Register Vol. 48, No. 1, January 10, 2025
Section 2 CCR 405-2-220 - MUFFLING AND SOUND LEVEL1. Except in case of a motorboat competing in a sanctioned race or regatta, it is unlawful to use a vessel propelled in whole or in part by gas, gasoline, or naphtha unless the vessel is provided with a stock factory muffler underwater or other device capable of adequately muffling the sounds of the exhaust of the engine. The phrase "adequate muffling" means that the motor's exhaust at all times is so muffled or suppressed as not to create excessive noise.2. No person shall operate a vessel upon waters of this state under any condition or in any manner that the vessel emits a sound level in excess of 86 decibels on "A" weighted scale when measured from a distance of 50 feet or more from the vessel. The operator of such vessel may be ordered off the water upon failure to submit to sound level testing procedures.37 CR 19, October 10, 2014, effective 11/1/201438 CR 07, April 10, 2015, effective 5/1/201539 CR 03, February 10, 2016, effective 3/1/201639 CR 07, April 10, 2016, effective 5/1/2016