Hemp-derived Delta-9 THC is legal in Texas, but only when the finished product contains no more than 0.3% delta-9 THC on a dry weight basis. Cross that line and the same product becomes marijuana under state law, with criminal penalties attached. The rules tightened in late 2025 and early 2026: cannabinoid vapes are banned, smokable hemp is on its way out, the purchase age is 21, and THC is now measured differently.
The 0.3% Rule Is the Whole Line
Texas adopted the federal hemp definition in 2019 through House Bill 1325. Under the Agriculture Code, hemp is Cannabis sativa L. with a delta-9 THC concentration of no more than 0.3% on a dry weight basis.1State of Texas. Texas Agriculture Code 121.001 – Definition The Health and Safety Code then explicitly excludes hemp from its definitions of “controlled substance” and “marihuana.”2State of Texas. Texas Health and Safety Code 481.002 – Definitions Meet the threshold and it is a legal consumer product. Exceed it and it is a controlled substance.
A point people miss: the 0.3% cap applies to the finished product, not just the raw plant it came from. The Agriculture Code defines a “hemp product” as a finished product with a delta-9 THC concentration of not more than 0.3% that is prepared for commercial sale.3Texas Legislature Online. 86(R) HB 1325 – Introduced Version A gummy, tincture, or capsule has to independently pass the test.
Total THC, Including THCA
Starting March 31, 2026, the Texas Department of State Health Services measures “total delta-9 THC,” combining delta-9 with THCA after a decarboxylation conversion factor.4Texas Register. Title 25 Health Services Chapter 300 Rule 300.101 – Definitions THCA is a non-psychoactive precursor that turns into active THC when heated, so products that once slipped through by testing only for raw delta-9 can now fail. This is what quietly pushes most smokable hemp out of the legal market.
What You Can Still Buy, and What You Cannot
Edibles, tinctures, topicals, and other non-smokable, non-vape hemp products remain legal if they stay under the 0.3% total delta-9 THC limit. DSHS specifically lists CBD oil, CBD gummies, infused foods and drinks, over-the-counter drugs containing CBD, and topical lotions as examples of legal consumable hemp products.5Texas Department of State Health Services. Consumable Hemp Program
Two categories are off the table:
- Cannabinoid vapes. Since September 1, 2025, Texas prohibits the sale of any vape or e-cigarette product containing cannabinoids, including hemp-derived CBD, Delta-8, Delta-9, and THCA. The only exception is medical vapes dispensed through the Texas Compassionate Use Program.6Texas State Law Library. CBD and Delta-8
- Smokable hemp. DSHS rules effective March 31, 2026 ban the sale of smokable consumable hemp products, and the new total-THC calculation removes most compliant smokable flower from the shelf anyway.6Texas State Law Library. CBD and Delta-8
You Must Be 21
Every consumable hemp product sale in Texas requires a buyer 21 or older, and the seller has to check a valid government-issued photo ID: a driver’s license from any state, a passport, or a state or federal ID card.7Texas Department of State Health Services. DSHS Announces Emergency Rules Prohibiting the Sale of Consumable Hemp Products to Minors There is no CBD-only or low-dose carve-out.
What Happens If a Product Crosses the Line
If a Delta-9 product exceeds 0.3%, Texas treats it as marijuana, and the penalties scale by weight:
- Two ounces or less: Class B misdemeanor (up to 180 days in jail, up to $2,000).
- More than two but no more than four ounces: Class A misdemeanor (up to one year, up to $4,000).
- More than four ounces but no more than five pounds: state jail felony (180 days to two years, up to $10,000).
- More than five but no more than 50 pounds: third-degree felony (two to ten years, up to $10,000).
- More than 50 but no more than 2,000 pounds: second-degree felony (two to 20 years, up to $10,000).
- More than 2,000 pounds: enhanced first-degree felony (five to 99 years or life, up to $50,000).
Concentrates and extracts are worse. Texas defines marijuana to exclude resin extracted from the plant, which pushes concentrates into a separate penalty group.2State of Texas. Texas Health and Safety Code 481.002 – Definitions Less than a single gram of a non-compliant concentrate can be charged as a state jail felony rather than a misdemeanor.
Police Cannot Confirm Legality on the Roadside
Standard field drug tests can detect THC but cannot measure how much is in a product. An officer who finds a hemp gummy or tincture during a traffic stop generally cannot verify on the spot that it is under 0.3%. Samples may go to a state crime lab for quantitative analysis, and results can take weeks or months.
That is a real risk for someone carrying a legal product. Arrest, temporary charges, and a wait for lab confirmation are all possible. Keeping the original packaging, the receipt, and a Certificate of Analysis can shorten the timeline, though none of that prevents an initial arrest based on probable cause.
Delta-8, THCA, and Medical Cannabis
Delta-9 is not the only cannabinoid worth knowing about. DSHS initially classified Delta-8 THC as a Schedule I controlled substance, but a court issued a temporary injunction blocking that classification, and the case is pending before the Texas Supreme Court. Delta-8’s legal status in Texas is unresolved.6Texas State Law Library. CBD and Delta-8
THCA used to be a workaround: high-THCA products could pass the delta-9-only test even though heating converted the THCA into active THC. The March 2026 total-THC rule closes that gap by counting the THCA conversion up front.4Texas Register. Title 25 Health Services Chapter 300 Rule 300.101 – Definitions
Texas also runs a separate medical program, the Texas Compassionate Use Program, which is not part of the hemp market. It allows qualifying patients to obtain low-THC cannabis containing no more than 10 milligrams of THC per dosage unit for conditions including epilepsy, cancer, PTSD, autism, multiple sclerosis, ALS, chronic pain, and terminal illness. Products must be prescribed by a registered physician and dispensed through licensed dispensaries.9Texas State Law Library. Compassionate Use Program – Cannabis and the Law Compassionate Use rules do not authorize anything sold in a hemp store.
How To Shop Without Getting Burned
Ask for the Certificate of Analysis. A legitimate COA from an independent third-party lab shows the cannabinoid profile, including delta-9 THC and THCA, and confirms the product falls within the 0.3% total delta-9 THC limit. No COA is a serious red flag. Buy from retailers registered with DSHS, keep the receipt and original packaging, and remember that products which look like marijuana flower create law enforcement complications that lab-tested edibles and tinctures usually do not.
Texas builds a “measurement of uncertainty” into compliance testing. If a lab reports 0.35% delta-9 THC with an uncertainty of plus or minus 0.06%, the sample range runs 0.29% to 0.41%. Because 0.3% falls inside that range, the sample is considered compliant.10Cornell Law School. 25 Tex. Admin. Code 300.101 – Definitions That tolerance is why two labs can report slightly different numbers on the same batch and both call it legal hemp.