In Illinois the engine noise emitted by motorized vessels must not exceed what level when measured from a distance of 75 feet?

In Illinois, the engine noise emitted by motorized vessels must not exceed 90 decibels when measured from a distance of 75 feet. This regulation is in place to minimize noise pollution and ensure a more pleasant experience for all users of waterways. It is important for boaters to be aware of and comply with these noise level restrictions.