(a) A person required to be licensed under Section 25 of this Act who sells a device or performs a service without being properly licensed under this Act may be assessed a civil penalty by the Agency not to the exclusion of any other penalty authorized by law in an amount not to exceed $5,000, for each offense, as determined by the Agency. Any person assessed a civil penalty under this Section shall be afforded an opportunity for hearing in accordance with Agency regulations prior to final action by the Agency. The civil penalty must be paid within 30 days after the order becomes a final and binding administrative determination.
     (b) A person who violates a provision of this Act shall be guilty of a business offense and may be fined not less than $500 nor more than $1,000 for the first offense and shall be guilty of a Class A misdemeanor for a subsequent offense. Each day that a violation continues constitutes a separate offense. A licensed radon contractor found guilty of a violation of a provision of this Act may have his or her license terminated by the Agency.