Deadline for Missouri’s new Marijuana plain packaging is Sept 1 Image Cannabis News August 26, 2024 Missouri's New Cannabis Packaging Rules Aim to Protect Children, Deadline for Compliance Approaches. Under Missouri's new cannabis regulations, labels and packages for marijuana-related products must have limited colors and can't appeal to children or resemble candy. (Photo by Rebecca Rivas/The Recreational Marijuana News Marijuana Politics Marijuana Business News My Courier Tribune