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Texas Reinstates Schedule I Classification for Delta‑8, Delta‑10 and Other Hemp THC Isomers

A Texas Supreme Court mandate cleared the way for the move and separate rules that change THC testing and raise licensing and packaging requirements have already tightened the hemp market.

Overview

  • The Texas Department of State Health Services will restore its 2021 definitions so that manufactured intoxicating isomers such as delta‑8, delta‑10 and THCP are treated as Schedule I controlled substances beginning July 31, 2026.
  • The change follows a May 1, 2026 Texas Supreme Court ruling upheld by a June 5 mandate that dissolved a long‑running injunction and allowed DSHS to enforce the 2021 definitions.
  • DSHS and court orders draw a line between trace, naturally occurring isomers that remain legal when hemp stays at or below 0.3% delta‑9 THC and manufactured isomers produced by chemically converting CBD, which are now targeted for prohibition.
  • Separate March 2026 DSHS rules that count THCA when measuring total THC and require child‑resistant packaging, higher fees and stricter testing are already in effect after an appeals court lifted their injunction and are reducing the market for smokable hemp.
  • Retailers face immediate inventory and compliance choices that will hit small shops hardest, and state lawmakers are preparing new bills that could seek broader bans or clearer statutory limits on consumable hemp THC products.