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COA explainer · United States

Arkansas: from grow to dispensary, what the label has to show

Play it: a batch moves through Arkansas’s medical marijuana workflow on the left, and each required label piece snaps onto the package on the right, color-coded by who adds it.

Sample data · Arkansas (Department of Health, 20 CAR Part 202; Alcoholic Beverage Control Division, 20 CAR Part 810) · for illustration

🏷️ The product label, building live

Natural State Grown · Ouachita Haze
Usable Marijuana (flower), 3.5 g
Fictional sample label for illustration, not a compliant, printable label.
🌱 Cultivation facility adds it🔬 Approved lab adds it🏪 Dispensary checks it🏛️ Department of Health (always required)
The big idea: Arkansas is medical only, and its testing rules come from the Department of Health. The grower never touches the sample: only lab employees pull it, from batches of ten pounds or less. A failed sample can be reanalyzed, but a pass on reanalysis still has to be confirmed by a second lab drawing a fresh sample, and a pesticide failure can never be cleaned up, only destroyed.

Sample label for illustration, not a compliant, printable label. The universal symbol is drawn as a placeholder. Arkansas rules (Department of Health, 20 CAR Part 202 as codified 1 January 2025; Alcoholic Beverage Control Division, 20 CAR Part 810), current October 2026; a 2026 amendment was proposed but not shown as adopted. Educational, not legal advice.

Step by step: Arkansas

  1. Step 1: Batches of 10 lb or less (Cultivation facility) A cultivation facility splits each harvest lot into batches of no more than ten pounds, each with a unique batch number that is never reused and is kept on record for two years. Every package of usable marijuana is tagged with a unique identification number in the state’s BioTrack-run tracking system, ARSTEMS. This is where the label’s producer name, ID, strain and harvest date come from.
  2. Step 2: Only lab employees sample (Approved laboratory) Before sampling, the facility gives the lab a written request for each test and says whether the batch is a resample after a failure. Then only people employed by a laboratory may take samples, on site or after the facility brings the batch in, totaling at least 0.5% of the batch, from flower that has been cured, under chain-of-custody rules.
  3. Step 3: Department of Health approved lab (Approved laboratory) The lab must be accredited by NIDA, NELAC, ISO or a similar body and approved by the Department of Health for marijuana testing. Before any sale to a patient, each batch is tested for pesticides, water activity and moisture, THC and CBD, and four heavy metals: arsenic, cadmium, lead and mercury. Harvest lots are also screened for coliforms, then E. coli.
  4. Step 4: Results and failure reports (Approved laboratory) The label’s THC and CBD must be the values calculated by the lab that tested it, with that lab’s name, test batch number and analysis date. A lab must report every failed test except water activity to the Department within 24 hours of finishing its data review, even while it reanalyzes, and never after it tells the grower or dispensary.
  5. Step 5: Fail: reanalyze, then a second lab (Department of Health) If a sample fails, the lab that tested it may reanalyze it. If the reanalysis passes, a different laboratory must resample the batch and confirm that result before the batch passes. A batch that fails for pesticides cannot be remediated and must be destroyed as the Commission approves, and the Department reports every pesticide failure to the Arkansas Department of Agriculture.
  6. Step 6: Package + label (Cultivation facility) The container shows the producer’s name and facility number, the unique ID, harvest date, strain, net weight in US and metric units, THC and CBD, an activation time in words or a pictogram, and the testing lab’s details. The Department’s universal symbol goes on the principal display panel, at least 0.48 by 0.35 inches, and three required warnings are added.
  7. Step 7: Dispensary check (Dispensary) A dispensary may not accept or sell usable marijuana that was not sampled and tested under the rules, and it can also arrange sampling itself for batches it receives from a grower. Any product whose label falls short must be returned or disposed of, with the recipient, item and date documented, before it reaches a registered patient.

Frequently asked questions

Who tests cannabis in Arkansas?
A laboratory accredited by NIDA, NELAC, ISO or a similar body and approved by the Arkansas Department of Health. Before any sale to a patient it tests each batch for pesticides, water activity and moisture, THC and CBD, and four heavy metals, and screens harvest lots for coliforms and E. coli. It must report failed tests, other than water activity, to the Department within 24 hours.
Who pulls the sample in Arkansas?
The lab does. Arkansas rules say only people employed by a laboratory may take samples, either at the grower's or dispensary's premises or after the batch is brought to the lab. Samples must total at least 0.5 percent of a batch of ten pounds or less. If a failed sample passes on reanalysis, a different lab must resample the batch and confirm it.
What has to be on a cannabis label in Arkansas?
The producer's name and facility number, a unique identification number, harvest date, strain, net weight in US and metric units, THC and CBD as calculated by the testing lab, an activation time, the lab's name, test batch number and analysis date, the Department of Health's universal symbol, and three warnings, including "For use by qualifying patients only. Keep out of reach of children."
Is Arkansas changing its cannabis label rules?
Possibly. The Department of Health proposed a 2026 amendment, open for comment from 5 July to 5 August 2026 with a hearing on 5 August and a proposed effective date of 1 October 2026. It would require the ASTM D8441 International Intoxicating Cannabis Product Symbol and a Poison Control number on labels. No adopted final text had been published as of late October 2026.

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Educational information only, not medical advice. Terpene and cannabinoid effects are an active area of research and vary by person, product, and dose. Cannabis is for adults 21+ where legal.

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