A person who violates this subsection commits a civil violation for which a forfeiture of not less than $100 nor more than $500 may be adjudged.

A.__A person who violates this subsection commits a civil violation for which a fine of not less than $100 nor more than $500 may be adjudged.

B.__A person who violates this subsection after having been adjudicated as having committed 3 or more civil violations under this Part within the previous 5-year period commits a Class E crime.

7. Operating airmobile that exceeds noise limit. Airmobiles are subject to the following noise level limits.

A. Except as provided in this paragraph, a person may not operate an airmobile that exceeds 78 decibels of sound pressure at 50 feet on the "A" scale, as measured by the Society of Automotive Engineers standards J-192. Airmobiles that are operating in a race approved by the commissioner under section 13061 may exceed this maximum noise level.

B. A person may not operate an airmobile in such a manner as to exceed:

(1) A noise level of 90 decibels when subjected to a stationary sound level test with and without cutouts engaged and as prescribed by the commissioner; or

(2) A noise level of 75 decibels when subjected to an operational test measured with and without cutouts engaged and as prescribed by the commissioner.

C.__The following penalties apply to violations of this subsection.

(1)__A person who violates this subsection commits a civil violation for which a fine of not less than $300 nor more than $500 may be adjudged.

(2)__A person who violates this subsection after having been adjudicated as having committed 3 or more civil violations under this Part within the previous 5-year period commits a Class E crime.