720 ILCS 602/25: Penalties.

(a) Any person who violates this Act is guilty of a Class A misdemeanor. The penalty is imprisonment for less than one year or a fine of not more than $5,000 or both for a first offense.

(b) For a subsequent violation of this Act, a person is guilty of a Class 3 felony, and the penalty is imprisonment for less than 5 years or a fine of not more than $20,000 or both.