Can You Buy Weed in Austin, Texas? THCA, Medical, and the 0.3% Line

You cannot legally buy weed in Austin, Texas, if by weed you mean marijuana with more than 0.3% Delta-9 THC. State law prohibits it, and no Austin ordinance or police policy changes that. What you can buy openly are hemp-derived products that stay at or below the 0.3% threshold. If you qualify medically, you can also get low-THC cannabis through the state’s Compassionate Use Program.

The 0.3% Line Is What Matters

Texas Health and Safety Code Chapter 481 defines marijuana as the Cannabis sativa L. plant and its derivatives, then carves hemp out of that definition.1State of Texas. Texas Code Health and Safety Code 481.121 – Offense: Possession of Marihuana The split hinges on one number: 0.3% Delta-9 THC by dry weight. At or below that, it is hemp and legal to buy. Above it, the product is marijuana under state law, no matter what the label says or how the plant was grown.

Texas adopted this threshold to match the federal 2018 Farm Bill, which removed hemp from the Controlled Substances Act.2U.S. Food and Drug Administration. Hemp Production and the 2018 Farm Bill That is why CBD stores, smoke shops, and specialty retailers across Austin can legally stock cannabis products. The legal protection travels with the product only as long as its THC concentration stays under the line.

What You Can Actually Buy in Austin

Hemp-derived products are sold at CBD specialty stores, smoke shops, vape shops, convenience stores, and through online retailers that ship to Texas. No license or ID card is required to buy them. The categories on the shelf include CBD products, Delta-8 THC, and Delta-9 THC edibles formulated to stay within the 0.3% limit.

The burden of verification sits with you. If a product you bought turns out to test above the 0.3% threshold, you have no legal cover. Reputable sellers make third-party lab certificates of analysis available, either on the packaging or on their website, showing exactly what cannabinoids the product contains and at what concentration. Check for one before you buy.

The 2026 THCA Rule Changes the Flower Aisle

A significant change took effect March 31, 2026. The Texas Department of State Health Services adopted rules that count THCA toward the total THC calculation for consumable hemp products.3Texas DSHS. Consumable Hemp Products – Frequently Asked Questions THCA is the non-psychoactive precursor to THC that converts to Delta-9 when heated. Hemp flower naturally carries high THCA levels, so measuring it alongside Delta-9 pushes almost all smokable hemp products over the 0.3% line.

The practical result: THCA flower and most other smokable hemp products can no longer be legally sold in Texas. Manufacturing smokable hemp inside Texas was already prohibited under a rule the Texas Supreme Court upheld, and while retail of smokable hemp made in other states had been allowed, the new THCA math makes it nearly impossible for those products to qualify.3Texas DSHS. Consumable Hemp Products – Frequently Asked Questions

Non-smokable products like edibles, tinctures, and oils are less affected. These are formulated around Delta-9 concentrations already kept below the threshold, and they do not rely on flower’s naturally high THCA content.

The Medical Route: Compassionate Use Program

Texas runs a narrow medical cannabis program under Occupations Code Chapter 169. A registered physician can prescribe low-THC cannabis if you have one of the qualifying conditions:

  • Epilepsy or seizure disorders
  • Multiple sclerosis or spasticity
  • Amyotrophic lateral sclerosis (ALS)
  • Autism
  • Cancer
  • Incurable neurodegenerative disease
  • Post-traumatic stress disorder (PTSD)
  • Chronic pain conditions
  • Traumatic brain injury
  • Crohn’s disease or other inflammatory bowel disease
  • Terminal illness or hospice/palliative care
4State of Texas. Texas Code Occupations Code 169.003 – Prescription of Low-THC Cannabis

There is no physical medical marijuana card. Your physician enters the prescription into the Compassionate Use Registry of Texas (CURT), which the Department of Public Safety maintains, and you fill it at a state-licensed dispensary.5Department of Public Safety. Compassionate Use Program Approved products are limited to oils, tinctures, and edibles. Smokable cannabis is not part of the program. Texas recently replaced its percentage-based THC cap with a limit of 10 milligrams per serving and one gram of THC per package.

A few practical realities to plan around. Only a small number of licensed dispensaries operate statewide, and not all have physical locations convenient to Austin, though some offer delivery. Registry consultations typically run around $150 and insurance does not cover them. You cannot fill a CURT prescription at a regular hemp shop or at a pharmacy.

Buying or Possessing Actual Marijuana in Austin

Austin has a reputation for going easy on marijuana, and the reputation has some basis in departmental practice, but the underlying criminal law has not moved. In May 2022 voters approved Proposition A, an ordinance directing Austin police to stop citing or arresting people for low-level marijuana possession. A Texas appeals court blocked the ordinance as preempted by state law, and in late 2025 the Texas Supreme Court declined to hear Austin’s appeal. Prop A is effectively dead. Possession is still a criminal offense.

State penalties scale by weight:

Paraphernalia is a separate charge. Simple possession of paraphernalia is a Class C misdemeanor, punished by fine only.8State of Texas. Texas Code Health and Safety Code 481.125 – Offense: Possession or Delivery of Drug Paraphernalia A pipe or grinder can generate a charge even if no usable marijuana is found with it.

Where Legal Products Still Get You in Trouble

Buying a product legally in Austin does not mean you can use it anywhere or that it comes with no consequences. A few boundaries worth knowing before you buy.

Driving. Texas has no specific THC blood-level threshold for DWI. Prosecutors have to prove impairment, but any detectable THC without a valid prescription can be argued as “abnormal.” A first-offense DWI is a Class B misdemeanor with up to 180 days in jail and a $2,000 fine. Legal hemp Delta-8 and Delta-9 products show up on drug tests the same as marijuana, and an officer who observes impairment can arrest you regardless of what the product’s label said.

Federal property. Federal law recognizes no state cannabis exception. Marijuana possession on federal land — national parks, military installations, federal courthouses, post offices — is a federal offense under 21 U.S.C. § 844, carrying up to a year in prison and a minimum $1,000 fine for a first offense.9Office of the Law Revision Counsel. 21 USC 844 – Penalties for Simple Possession Austin has meaningful federal property downtown and nearby.

Austin-Bergstrom Airport. TSA does not actively look for marijuana, but if screeners find it they refer it to law enforcement.10Transportation Security Administration. Complete List – What Can I Bring Compliant hemp products are federally legal to fly with, but anything that looks or smells like marijuana will draw scrutiny. Carrying lab documentation for hemp products helps but does not guarantee a clean pass through security.

Employment. Standard workplace drug tests screen for THC metabolites and cannot tell the difference between illegal marijuana and a legal Delta-8 gummy. For workers in Department of Transportation safety-sensitive roles, the DOT states directly that CBD or hemp use is not a valid explanation for a positive THC result. Compassionate Use patients get no protection either: federal courts have held that the Americans with Disabilities Act does not cover medical cannabis users, and Texas has not passed a state-level employment protection for CURT patients.

Federally assisted housing. HUD prohibits admission of marijuana users, including medical patients, to public housing and Section 8 programs, and existing tenants can be evicted for use.11HUD Exchange. Can a Public Housing Agency Make a Reasonable Accommodation for Medical Marijuana This applies in every state, Texas included.