(a) A person commits an offense if the person intentionally or knowingly receives, processes, concentrates, stores, transports, or disposes of low-level radioactive waste without a license issued under this chapter.
(b) An offense under this section is a Class A misdemeanor, unless it is shown at the trial of the person that the person has been previously convicted of an offense under this section, in which event the offense is punishable by a fine of not less than $2,000 or more than $100,000, confinement in the county jail for not more than one year, or both.