Maryland Caps THC Levels and Tightens Cannabis Regulations Starting July 1, 2025

On July 1, Maryland will implement new cannabis restrictions—capping THC content in unlicensed products and boosting regulatory oversight of legal cannabis.

The new law, HB 12/SB 214, prohibits unlicensed cannabis products from containing more than 0.5 mg THC per serving or over 2.5 mg per package. Those selling or distributing such items without a license face misdemeanor charges and fines up to $5,000  .

Licensed dispensaries, dual-licensed to sell both medical and recreational cannabis, remain unaffected—but unlicensed retailers must comply or risk enforcement (). The crackdown targets loophole THC products on the market without oversight, aiming to shield consumers, especially youth, from untested or potent illicit goods ().

These cannabis rules join sweeping energy and environmental reforms—like clean energy assessments and Chesapeake Bay protection—that also begin July 1. But for shoppers and vendors, the cannabis changes mark a significant shift in Maryland’s regulatory landscape  .