COA explainer · United States
Arizona: from grow to shelf, what ends up on the label
Play it: the batch moves through Arizona's workflow on the left, and each required label piece snaps onto the package on the right, color-coded by who adds it. One adult-use license covers a store plus at most one off-site grow and one off-site manufacturing site.
Sample data · Arizona (ADHS, A.R.S. Title 36 Ch. 28.2, A.A.C. Title 9 Ch. 18) · for illustrationPublished
🏷️ The product label, building live
Copper Mesa · House Flower
Marijuana Flower
Fictional sample label for illustration, not a compliant, printable label.
🌱 Cultivation site adds it📦 Establishment packaging adds it🔬 Testing facility / COA adds it🏪 Retail site adds it🏛️ ADHS (always required)
The big idea: Arizona lets the licensee pull its own sample, by a written statistical standard, and lets a failed sample be retested by up to two other labs. What the shopper gets in return is unusual: there is no THC symbol, but every package must carry a QR code to a page with the harvest date, the supply chain and a link to the lab's final report, which includes a color photo of the sample the lab received. The printed potency only has to sit within ±20% of the tested value.
Sample label for illustration, not a compliant, printable label. Arizona rules (ADHS, A.A.C. Title 9 Ch. 18), current 2026. Educational, not legal advice.
Step by step: Arizona
- Step 1: Grow / harvest batch (Cultivation site) One adult-use license covers one store plus at most one off-site grow and one off-site manufacturing site. The grow harvests a batch (one strain, planted and harvested together) and records it, including every chemical additive used, in its inventory control system. This becomes the label's strain, batch number and license number.
- Step 2: The licensee pulls one sample (Cultivation site) Until passing results arrive, the batch is stored away from product offered for sale. The establishment collects one sample per batch under the ANSI/ASQ Z1.4 sampling standard (a sample thief, star-pattern sampling, every tenth unit, or quartering), labels it with its license number, strain, batch and the tests requested, and submits it to a licensed lab.
- Step 3: Licensed lab analysis (Testing facility) An ADHS-licensed lab, ISO/IEC 17025 accredited and approved for each analyte, tests the sample as received, within 10 days: E. coli, Salmonella, Aspergillus, heavy metals, 56 pesticides and growth regulators, and potency, plus residual solvents on processed products and mycotoxins on extract-based ones.
- Step 4: Final report, with a photo (Testing facility) Within 10 days of receiving the sample, the lab sends its final report: results, methods, test dates, the director's signature and a color photo of the sample as submitted. This unlocks the label's total THC and total CBD. A shopper can ask to see the results before buying.
- Step 5: Pass / fail (ADHS) A pass releases the batch. After a fail, the licensee has 7 days to send the rest of the same sample to up to two other independent labs; if either confirms the failure, the batch is remediated where possible or destroyed, and a remediated batch is sampled and tested again. ADHS inspects every lab at least once a year.
- Step 6: Package + label (Establishment (packaging)) The label carries the license number, amount, strain and batch, the form and weight, total THC and total CBD from the lab, and the long ADHS warning. The label claim must sit within ±20% of the tested value, or the label has to be revised.
- Step 7: QR code to the lab report (Establishment (packaging)) Arizona requires no THC symbol. Instead, since the end of 2023, every package carries a QR code to a page with the strain, the harvest date, who grew it and who prepared it for sale, the extraction method if any, and a link to the lab's final report.
- Step 8: Retail sale (Retail site) The retail agent checks age and sells at most 1 ounce, no more than 5 grams of it as concentrate, and the product leaves in child-resistant packaging. Edibles are capped at 10 mg THC per serving and 100 mg per package.
Frequently asked questions
Who tests cannabis in Arizona?
A testing facility licensed by the Arizona Department of Health Services, accredited to ISO/IEC 17025 and approved for each analyte, tests every batch before sale for E. coli, Salmonella, Aspergillus, heavy metals, 56 pesticides and growth regulators, and potency, plus residual solvents on processed products and mycotoxins on extract-based ones. It must analyze the sample within 10 days, and its final report includes a color photo of the sample.
Who pulls the sample in Arizona?
The licensee does. Before sale the marijuana establishment collects one sample per batch using the ANSI/ASQ Z1.4 statistical standard, such as a sample thief, star-pattern sampling or every tenth unit, labels it with its license number, strain, batch and requested tests, and submits it to a licensed lab. Until passing results arrive, the batch is stored away from product offered for sale.
What has to be on a cannabis label in Arizona?
An Arizona label shows the establishment's license number, the amount, strain and batch number, the form and weight, total THC and total CBD from the lab (within 20 percent of the tested value), and the Department of Health Services warning. Every package also needs a QR code linking to a page with the harvest date, supply chain and lab report. No THC symbol is required.
How do I see the lab results for Arizona cannabis?
Scan the QR code on the package. Arizona law requires it to open a page for that specific product with the strain, the harvest date, who grew it and who prepared it for sale, and a link to the testing lab's final report. A retail agent must also make the test results available if you ask before you buy.
How accurate is the THC number on an Arizona label?
Arizona's testing table only requires the label claim to fall within 20 percent, up or down, of the value the lab measured; outside that range the label has to be revised. The lab reports total THC as THCA multiplied by 0.877 plus delta-9-THC, so the figure already accounts for the acid form found in raw flower.
Keep reading
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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