Engine Compression Braking Prohibited.
Milwaukee Code of Ordinances § 80-69
in effect80-69. Engine Compression Braking Prohibited.
1. PROHIBITION. No driver of any vehicle within the city shall use or operate or cause to be used or operated any mechanical device designed to aid in braking or deceleration of his or her vehicle which results in the creation of a loud, explosive noise, known as an engine compression brake and commonly referred to as a “jake brake”.
2. EXCEPTIONS. The provisions of sub. 1 shall not apply to the application of un-muffled or effectively muffled engine compression brakes where necessary for the protection of persons and property, which cannot be avoided by the application of an alternative braking system. Noise caused by the application of engine compression brakes created by emergency vehicles for emergency purposes shall also be exempt.
Source: City of Milwaukee Legislative Reference Bureau, Milwaukee City Charter and Code of Ordinances (city.milwaukee.gov master PDFs)URL: https://city.milwaukee.gov/ImageLibrary/Groups/ccClerk/Ordinances/Volume-1/CH80.pdf#page=26Fetched: 10/26/2026
