A Texas Judge Just Blocked the State’s THCA Ban. Here’s What the Ruling Actually Says.

If you walked into a Texas hemp shop last week, you might have noticed something unexpected: smokeable THCA flower was back on the shelf. Not because the law changed — the law is the same. What changed is that a judge told the state it couldn’t enforce the law while a court case plays out.

That’s an important distinction. Here’s what actually happened, what it means right now, and why April 23 matters.

The Short Version

On April 10, 2026, Travis County District Court Judge Maya Guerra Gamble granted a temporary restraining order (TRO) blocking the Texas Department of State Health Services (DSHS) from enforcing the new hemp regulations that took effect March 31. For the next two weeks — through at least April 23 — hemp retailers can legally sell smokeable THCA products in Texas.

The ban isn’t gone. It’s paused. There’s a meaningful difference.

What Got Blocked — and What Didn’t

The TRO stops enforcement of two specific parts of the DSHS rules:

1. The “total delta-9 THC” calculation — the new DSHS formula counted THCA in the THC total using a post-decarboxylation method. That effectively banned virtually all THCA flower, since raw hemp flower with high THCA will always exceed 0.3% once you factor in conversion.

2. Restrictions on interstate sales — the DSHS rules had also attempted to prohibit Texas consumers from ordering smokeable hemp products from out-of-state sellers. That restriction is also blocked for now.

What did not get blocked: the higher licensing and registration fees. Retailers still face $5,000 per location (up from $150), and manufacturers face $10,000 per facility (up from $250). Judge Guerra Gamble declined to pause those while the case proceeds. That fee question is likely to be addressed at the April 23 hearing.

The Legal Argument That Won the TRO

The plaintiffs — the Texas Hemp Business Council, Hemp Industry & Farmers of America, and several Texas dispensaries and manufacturers — filed a 330-page complaint arguing that DSHS exceeded its rulemaking authority.

The core argument is one of separation of powers: the rules the agency adopted are more restrictive than what the Texas Legislature actually passed.

Texas legalized hemp in 2019 under a law that defined legal hemp as cannabis containing no more than 0.3% delta-9 THC by dry weight. That’s the standard the legislature set. DSHS, acting without new legislative authority, rewrote that definition to include THCA in the THC calculation using a post-decarboxylation formula — a change that effectively banned an entire product category that the legislature never explicitly prohibited.

Attorney Jason Snell, representing the plaintiffs, made the point plainly during the hearing: “What the legislature refuses to enact cannot be imposed through rulemaking.”

That’s significant context. Texas lawmakers passed legislation in the 2025 session that would have significantly restricted hemp products. Governor Greg Abbott vetoed it. DSHS then adopted regulations that largely mirrored what the legislature had rejected. That sequence — lawmakers vote it down, agency enacts it anyway via rule — is precisely what the plaintiffs are arguing constitutes an illegal overreach.

The state’s counter-argument, offered by Zachary Berg of the Texas Attorney General’s Office, is that DSHS was simply bringing state rules into alignment with federal law — specifically P.L. 119-37, the federal Continuing Appropriations Act signed in November 2025 that redefined hemp at the federal level to include a total THC standard. The state argued its rules merely anticipated a federal change that’s coming anyway.

The judge wasn’t persuaded — at least not enough to deny the TRO.

What a TRO Actually Is

A temporary restraining order is not a ruling on the merits of the case. Judge Guerra Gamble did not say the DSHS rules are unconstitutional. She said there is enough of a legal question — and enough potential for irreparable harm to businesses — to justify pausing enforcement while the full case is heard.

For a court to grant a TRO, the requesting party generally has to show: – A likelihood of success on the merits – That irreparable harm will occur without the order – That the harm to the requesting party outweighs the harm to the opposing party – That the order is not contrary to the public interest

The court found those conditions met. Crucially, the “likelihood of success on the merits” standard is a low bar — it doesn’t mean the plaintiffs will win. It means the judge believes their legal argument is plausible enough to warrant further examination.

What Happens April 23

The TRO lasts 14 days. On April 23 at 9 a.m., there’s a hearing on the plaintiffs’ motion for a preliminary injunction — a longer-term pause on enforcement that would remain in place while the full case is litigated.

A preliminary injunction is a higher bar than a TRO, and the hearing will be more substantive. The fee question will also likely be revisited. If the court grants the preliminary injunction, Texas hemp retailers could operate under the pre-March-31 rules for months, potentially through the end of the year and into the resolution of the federal November 2026 deadline.

If the court denies the injunction, the DSHS rules go back into effect immediately — and retailers who restocked their shelves after the TRO would need to clear product again.

The Federal Angle That Makes This Bigger Than Texas

The state’s defense — that it was simply getting ahead of federal law — points to a dynamic that affects every state hemp market, not just Texas.

P.L. 119-37 rewrites the federal definition of hemp to include a total THC standard effective November 12, 2026. Several states have tried to preemptively adopt that same standard through agency rulemaking, rather than waiting for their legislatures to act.

If Judge Guerra Gamble eventually rules that DSHS exceeded its authority by implementing a standard the legislature didn’t enact, that reasoning could apply in any state where regulators have tried the same move. It creates a potential template: before an agency can rewrite the definition of hemp to match federal law, it may need explicit legislative authorization to do so.

That’s not a settled point of law. But it’s the question at the center of this case.

What Retailers and Consumers Should Know Right Now

If you’re a Texas retailer: As of today, you can resume selling smokeable THCA products under the pre-March-31 rules. That remains true through April 23 at minimum. Watch the April 23 hearing closely — if the preliminary injunction is denied, you may need to act quickly. For background on what the original ban required, see our Texas THCA smokeable ban explainer from March 31.

If you’re a Texas consumer: THCA flower and smokeable hemp concentrates are legally available in Texas-based stores right now. Out-of-state online orders to Texas addresses are also not currently subject to the DSHS restrictions, though that could change after April 23.

If you’re a retailer or compliance officer in another state: This case is worth following. The separation-of-powers argument — that agencies can’t adopt hemp restrictions the legislature declined to pass — could become relevant wherever state agencies have attempted to get ahead of the federal November 2026 deadline through rulemaking rather than legislation. For a broader look at where THC-derived hemp products stand state-by-state, see our hemp THC legality tracker.

The rules haven’t changed. The enforcement has been paused. Know the difference.

Morgan Ellis covers hemp law, Farm Bill regulation, and state enforcement conflicts for The Grey Zone. Have a tip or a compliance question? [Contact us.]