Wyoming’s stance on hemp‑derived THC can seem confusing, especially after the 2025 rule changes. The short answer: low‑THC hemp products that contain 0.3 percent THC or less are legal for sale and possession, but any product that exceeds that threshold is prohibited and may be subject to criminal penalties. The new rules tighten testing requirements, expand the definition of “industrial hemp,” and give law‑enforcement clearer authority to seize non‑compliant items.
Wyoming Hemp Law Before 2025
Wyoming adopted the 2018 Federal Farm Bill, which defined industrial hemp as cannabis with a THC concentration of no more than 0.3 percent on a dry weight basis. The state established a licensing system for growers and processors, and required third‑party lab tests before products could enter the market. Violations were treated as a misdemeanor, but enforcement was uneven.
Key Changes Implemented in 2025
- Mandatory Real‑Time Testing – All hemp products must be tested within 24 hours of harvest using state‑approved labs. Results are uploaded to a public database.
- Expanded Definition of Hemp – The threshold for “low‑THC” now includes any product where the total THC, including Δ9‑THC and Δ8‑THC, does not exceed 0.3 percent.
- Stricter Labeling Requirements – Labels must display the exact THC percentage, batch number, and a QR code linking to the lab report.
- Enhanced Enforcement Powers – Law‑enforcement officers can seize products that lack a valid lab report or show THC levels above the legal limit without needing a warrant.
- Penalties for Non‑Compliance – First‑time offenders face a $500 fine and confiscation of the product; repeat offenses can lead to a Class A misdemeanor and up to one year in jail.
Practical Implications for Consumers and Businesses
- Consumers can purchase hemp‑derived THC products at retailers, provided the label shows a THC content of 0.3 percent or less and includes a QR code to the lab report.
- Businesses must invest in rapid testing equipment or partner with certified labs to avoid delays. Failure to comply risks product seizure, fines, and loss of license.
- Medical Use – Wyoming does not have a separate medical cannabis program, so patients cannot rely on a prescription to exceed the 0.3 percent limit.
Enforcement Trends Since 2025
Wyoming’s Attorney General’s office reported a 40 percent drop in illegal THC seizures within the first year of the new rules, indicating that the transparent testing system has improved compliance. However, occasional raids still occur in unlicensed operations that attempt to sell higher‑THC extracts.
FAQ
What THC level is considered legal in Wyoming?
Any hemp product containing up to 0.3 percent THC on a dry weight basis is legal. Levels above that are illegal.
Do the 2025 rules apply to both Δ9‑THC and Δ8‑THC?
Yes, the total THC measurement includes all forms of THC, so both Δ9‑THC and Δ8‑THC count toward the 0.3 percent cap.
Can I grow hemp at home for personal use?
Home cultivation is allowed only with a state‑issued license. Unlicensed personal growth is prohibited and may result in seizure and fines.
Are CBD products with trace THC automatically illegal?
No, CBD products are legal if the lab report confirms THC does not exceed 0.3 percent and the label reflects the exact amount.
What should I do if I am stopped with a hemp product lacking a QR code?
Cooperate with the officer and provide any purchase receipts. You may be issued a citation and given a chance to submit the required lab documentation within a specified timeframe.