According to Romania-Insider, Romanian authorities decided to charge the Pittsburgh-born rapper, whose real name is Cameron Thomaz, with illicit drug use during a hearing at the Constanța Tribunal on October 16.
Recreational marijuana use is illegal in Romania.
If convicted, Wiz Khalifa could face a prison sentence ranging from three months to two years, or a fine.
The rapper headlined the Beach, Please! Festival on July 13 and was detained after lighting up a joint on stage. He was later released.
Romanian police issued a statement, saying, “Investigations revealed that during a performance at a music festival in the CostineÈ™ti resort, ConstanÈ›a County, he possessed more than 18 grams of cannabis and consumed another quantity on stage in the form of a hand-rolled cigarette.”