Connecticut will eliminate its 70% THC potency cap on adult-use marijuana concentrates beginning October 1. The change lets dispensaries legally sell concentrates, extracts, oils, tinctures, shatter and wax that test above the current limit. It does not touch the state's separate 35% THC cap on marijuana flower, which stays in place.
The 70% THC cap on adult-use concentrates ends October 1, 2026, under Public Act 26-100, signed by Gov. Ned Lamont on June 2. Connecticut's 35% THC cap on flower is unaffected and remains in effect.
What Changes
Connecticut currently limits recreational concentrates and extracts to 70% THC by weight, a threshold below what many high-potency products on the national market can reach. Public Act 26-100 removes that specific cap for adult-use concentrates, extracts, oils, tinctures, shatter and wax, effective October 1. Retailers will be able to stock and sell products above 70% THC that were previously non-compliant for the recreational market.
The flower cap is untouched. Connecticut's 35% THC limit on marijuana flower sold in the adult-use market continues to apply after October 1, so the change is specific to concentrated and extracted product categories, not the plant material itself.
What Doesn't Change
Removing the numeric cap does not remove Connecticut's other high-potency product rules. State law still requires specific warning language for products identified as high-potency and imposes additional display and advertising restrictions on products that exceed defined potency thresholds. Packaging, labeling, child-resistant container requirements and testing rules for concentrates also remain in force. Retailers selling newly compliant high-THC concentrates will still need to meet those separate requirements.
Why It Matters
Potency caps are one of the more contested tools state regulators use to try to manage high-THC product availability, and they vary widely from state to state. Connecticut's move to lift its concentrate-specific cap, while keeping a flower cap, reflects a regulatory approach that treats product categories differently rather than applying one blanket THC ceiling. It also brings Connecticut's concentrate market closer in line with states that impose no numeric potency cap on extracts at all, potentially narrowing incentives for Connecticut consumers to seek higher-potency products through the illicit market or from neighboring states.
For Connecticut retailers and processors, the change means previously unsellable high-potency concentrate batches may become sellable inventory after October 1, subject to the state's remaining labeling and warning requirements.
What This Means for Texas
Connecticut's potency rules have no legal effect in Texas. Texas does not have a comparable adult-use cannabis market, and its hemp-derived product rules operate under an entirely separate framework tied to total THC concentration limits for hemp, not a state-licensed adult-use potency cap. Texas readers should not read a Connecticut regulatory change as a signal about Texas hemp or medical cannabis rules. See our guide to the federal hemp delay and how Texas rules remain unchanged for the distinctions that actually apply here.
The Bottom Line
Connecticut's 70% THC cap on concentrates goes away October 1 under a law the governor signed in June. Flower stays capped at 35% THC, and the state's other high-potency labeling and advertising rules remain in place. It is a narrower change than an across-the-board potency deregulation, and Connecticut consumers and retailers should expect the state's existing warning and display requirements to keep applying to newly compliant products.