Section 579.155 - Possession of prescription medication on school property - exceptions - penalty1. A person commits the offense of possession of prescription medication on school property if he or she is less than twenty-one years of age and knowingly possesses upon the real property comprising a public or private elementary or secondary school or school bus prescription medication without a valid prescription for such medication. For purposes of this section, prescription medication shall not include medication containing a controlled substance, as defined in section 195.010.2. The provisions of this section shall not apply to any person authorized to possess a prescription medication by any school personnel who are responsible for storing, maintaining, or dispensing any prescription medication under chapter 338. This section shall not limit the use of any prescription medication by emergency personnel during an emergency situation.3. The offense of possession of prescription medication on school property is a class C misdemeanor for a first offense and a class B misdemeanor for any second or subsequent offense.Added by 2014 Mo. Laws, SB 491,s A, eff. 1/1/2017.