US hemp THC sector faces December federal curb

The U.S. hemp-derived THC industry is preparing for the possible implementation of a federal ban that significantly restricts impairing hemp products. Congress has approved a measure that caps total THC content at 0.4 milligrams per container, closing a loophole in the 2018 farm bill that had allowed intoxicating hemp products to expand rapidly. Industry participants describe the change as an immediate threat to the current business model for hemp-derived THC beverages and related products.

The measure was added by Senator Mitch McConnell to a late-2025 or early-2026 legislative vehicle designed to revise the legal definition of hemp. By tightening that definition, federal lawmakers aim to bring hemp products more closely in line with the original intent of the 2018 legislation, which focused on non-impairing uses.

Although the new THC cap is on track to take effect, its start date was recently pushed back. A short-term government-funding bill signed by President Donald Trump shifted the effective date from Nov. 12, 2026 to Dec. 11, 2026. This delay gives Congress additional time to review the rule and consider alternative approaches before the restrictions become active.

During this window, industry groups and some lawmakers are using the extra weeks to push for revisions. The focus of these efforts is on preserving at least a portion of the hemp-derived THC market while addressing concerns about impairing products being widely available without consistent regulation.

The sector’s economic stakes are highlighted in estimates from Whitney Economics, which the industry cites in its lobbying campaign. The report estimates that the federal cap threatens to reduce retail revenues by $28.3 billion. It also projects the displacement of 225,000 jobs related to hemp-derived THC activity and a reduction in potential state sales-tax collections by $2.1 billion.

These projected losses underscore why businesses and trade groups are framing the proposed cap as an issue not only for producers but also for state and local governments that have come to depend on tax receipts from the sale of hemp-derived products.

To avert or soften the impact of the ban, companies and advocates are promoting a range of compromise measures. Suggestions include limiting sales of impairing hemp products to consumers aged 21 and older, imposing lower per-package THC limits than those seen in some current products, and banning imported cannabis compounds in favor of domestically sourced inputs.

Executives at Cornbread Hemp, a Kentucky-based operator, have indicated they would consider an approximately 5-milligram THC cap per product if it helped secure congressional support for continued market access. The company reports employing 105 people, selling hemp beverages in 18 states, and expecting about $65 million in revenue this year, figures that illustrate the size of some individual businesses at risk.

Other firms have already begun scaling back. Drinkin’ Buds, a cannabis beverage producer in Sheboygan, Wisconsin, has mothballed its production operations, and co-founder Matt Swanson has taken himself off the payroll. These steps reflect how the anticipated rule change is influencing decisions even before the federal cap takes formal effect.