Under Which Rule?

Somebody tells you a product on your shelf cannot be sold in Texas.

The instinct is to ask whether they are right. That is the wrong first question, and this piece is about the one that beats it.

Ask which rule they mean.

Four answers, three rules, one morning

We asked whether THCA is a problem for a Texas retailer four separate ways this morning, in the plain words an operator would actually use. Here is what came back.

Two phrasings returned an inventory procedure: pull and physically segregate anything containing delta-8, delta-10, THCP or THCA, including THCA flower — and, pointedly, that moving product to a back room is not the same as removing it from inventory. That answer is framed as a consequence of a controlled-substances scheduling action.

A third returned the opposite outcome — that THCA flower can still be bought at registered Texas retailers today by an adult with ID — inside the same answer that elsewhere described it as barred from retail since March 31 and subject to an injunction.

A fourth reached the same restrictive conclusion as the first two, but attributed it to something else entirely: the total-THC calculation.

Count what actually varied. Not the tone, which was uniformly confident. Not the recency; all four are current. What varied is which legal instrument each answer says you are standing under — a scheduling action, a calculation rule, or a court order.

Why our usual tests all pass this

We have written down three checks over the last two weeks, and this morning got past all of them.

The first was [find the author](https://gethempdash.com/learn/a-deadline-nobody-published). Each of these answers has one.

The second was [ask it twice](https://gethempdash.com/learn/ask-it-twice) and watch whether the numbers hold still. These hold still. Ask again, get the same instruction.

The third was [as of when](https://gethempdash.com/learn/both-numbers-are-real) — the test for a fact that was true once and quietly expired. Nothing here has expired. Every one of these answers is about this year.

So a claim can be authored, stable and current, and still leave you unable to act on it — because the part that drifted is the part none of those tests looks at. The conclusion stayed put and the authority underneath it moved.

The reason this is not a complaint about the internet

It would be easy to file this under bad sources and move on. The reason it is worth ten minutes of your morning instead is that the mechanism decides the remedy, and the three candidate mechanisms have almost nothing in common operationally.

If it is the calculation, a certificate answers it — today. This route is settled on our record and you can act on it without waiting for anyone. The Texas consumable hemp threshold does not bind delta-9 THC on its own; it binds total delta-9 THC, at 0.3% or less on a dry weight basis, inclusive, with an allowance where the accredited laboratory's measurement of uncertainty produces a range including 0.3% or less. Total delta-9 THC is computed:

> total delta-9 THC = delta-9 THC + (0.877 × THCA)

THCA is an input to that arithmetic, not a separate question sitting beside it. This is why 25 TAC §300.301(d)(12) asks for three values rather than one — delta-9 THC, total delta-9 THC, and total THC per container — and why a certificate missing any of the three is non-passing on the field set alone, before anyone reaches the multiplication. The arithmetic is worked through in [Total Delta-9 THC Is a Computed Value](https://gethempdash.com/learn/total-delta-9-thc-how-it-is-computed), and the wider field set in [The Twelve Fields a Texas COA Must Carry](https://gethempdash.com/learn/texas-coa-requirements-twelve-fields).

The point for this morning is narrow and useful: if the objection to your product is a measurement objection, it is answerable from a document you can put your hands on.

If it is the scheduling action, no certificate answers it. A Texas controlled-substances scheduling change covering manufactured and synthesized cannabinoids is part of the picture, and our record carries it as pending — named, not settled. What it does not decide, expressly, is which products and processes fall inside the scheduled definitions. That is a scope question, and a scope question is not a laboratory question. You cannot test your way out of it. No number on a COA moves it an inch.

We are not going to close that question here, in either direction, and we are not going to tell you the answers above are wrong about it. We have not confirmed the hinge they turn on, and a confident answer to an unresolved scope question is worth less to you than an acknowledged gap — because you cannot tell from the confidence of the page which of the two you are reading. We laid the two routes out separately in [THCA Reaches Texas Rules Two Different Ways](https://gethempdash.com/learn/thca-two-texas-rules), and that separation is exactly the thing this morning's answers collapse.

If it is a court order, it is a question about timing and about parties, and it is not a property of your inventory at all. We do not characterise pending litigation here, from any side.

Three mechanisms. One tells you to call your laboratory. One tells you that nobody can currently give you a citation. One tells you to call a lawyer. "It cannot be sold" tells you none of that, which is why it is not yet an answer.

What we will not do with this

Two things worth stating plainly, because the honest version of this piece has to include them.

We are not concluding that the restrictive answers are wrong. Our record holds the scheduling scope open, and open means open — an unresolved question is not secretly a "no". We also read a primary regulatory document this morning and found it silent on several things people are being told. Silence in a document we have not finished verifying is a negative result, not a finding, and treating it as one would be the same mistake in the opposite direction. That belongs in our research notes, and that is where it stayed.

And we do not tell you how any of this is being enforced. Our record carries enforcement posture on the total delta-9 THC threshold as under review and asserts it in neither direction. Nothing read this morning moves that field. Which of our records are settled and which are open is set out one at a time in [Which Texas Hemp Rules Are Unsettled, and Which Are Not](https://gethempdash.com/learn/which-texas-hemp-rules-are-unsettled).

Worth noting on the structure, though: the State Law Library's own research guide, updated August 5, keeps these routes apart in exactly the way our record does — treating THCA under the March calculation rule and the tetrahydrocannabinols scheduling as a separate matter. When a state law library and a compliance vendor disagree about which rule a compound sits under, that is not a detail.

What to do this morning

Two things, both small, both available before lunch.

Take the next objection you hear and add two words to it. Not "is that right", but "under which rule". If the person cannot name the instrument, you have learned something more useful than their conclusion: you have learned they are relaying a summary rather than reading a rule.

Then pull one certificate off the shelf and check whether it reports all three values — delta-9 THC, total delta-9 THC, and total THC per container.

That second check earns its place precisely because it does not depend on how the scope question resolves. Whichever way that lands, a certificate that cannot show the value the threshold actually binds is one you cannot reason from, and fixing it is a conversation with your laboratory or your vendor that you can start today rather than a thing to wait out.

And in the future tense, where it belongs: a federal provision, P.L. 119-37, is scheduled to take effect on November 12, 2026 and will change how the federal definition is measured. It has not done so yet. Any account describing it as a present requirement is describing a date that has not arrived.

Source: 25 TAC §300.301(a)(4), (b)(4), §300.301(d)(12); §300.302(b)(1), (c)(3). Adopted rules filed with the Secretary of State March 2, 2026 (TRD-202601066), effective March 31, 2026; verified August 16, 2026 against two independent official publications, with the computation method ratified by our compliance team on August 17, 2026. The Texas controlled-substances scheduling action is carried on our record as pending, with its scope question expressly undecided. Enforcement posture: under review, asserted in neither direction.

The full record set, each status shown rather than summarised, is at [the Texas Rule Center](https://gethempdash.com/texas-rules).