Raybon

Opinion of the Court by Groban, J.

This case requires us to interpret Proposition 64, the Control, Regulate and Tax Adult Use of Marijuana Act (Prop. 64, as approved by voters, Gen. Elec. (Nov. 8, 2016) (Proposition 64 or the Act)). The question we must answer is whether Proposition 64 invalidates cannabis-related convictions under Penal Code section 4573.6, which makes it a felony to possess a controlled substance in a state correctional facility. Although Proposition 64 generally legalizes adult possession of cannabis, 1 it contains several exceptions. One such exception provides that the Act does not amend or affect “[l]aws pertaining to smoking or ingesting cannabis or cannabis products on the grounds of, or within, any facility or institution under the jurisdiction of the Department of Corrections and Rehabilitation . . . .” (Health & Saf. Code, § 11362.45, subd. (d).) The Attorney General contends this exception applies to violations of Penal Code section 4573.6, meaning that possession of cannabis in a correctional facility remains a felony. Defendants2 disagree,

1 In 2017, the Legislature replaced all references to “marijuana” in the Health and Safety Code with the term…