A person who violates this subsection commits a Class E crime.

11.__Operating snowmobile at greater than reasonable and prudent speed.__A person may not operate a snowmobile except at a reasonable and prudent speed for the existing conditions.

A person who violates this subsection commits a Class E crime.

12.__Operating a snowmobile while underage.__A person under 14 years of age may not operate a snowmobile across any public way maintained for travel.

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.

13.__Permitting unaccompanied child to operate snowmobile.__A person may not permit a child under 10 years of age to operate a snowmobile unless the child is accompanied by an adult.

This subsection does not apply on land that is owned by the parent or guardian or on land where permission for use has been granted to the parent or guardian.

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.

14.__Snowmobile noise level limits.__This subsection governs noise levels for snowmobiles.

A.__Except as provided in section 13112, a person may not:

(1)__Operate a snowmobile that exceeds the noise limits for that snowmobile established in paragraph B; or

(2)__Modify a snowmobile in a manner that amplifies or otherwise increases total noise emission above that emitted by the snowmobile as originally constructed, regardless of the date of manufacture.

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

B.__The following noise levels are established: