There is no federal marijuana packaging label. Cannabis remains a Schedule I substance under federal law, so labeling rules come from the state agency that licenses the grower or processor. A package that passes in California can fail in Michigan, and a label approved last year may be out of date after a rule change. Nearly all adult-use states require the same core set of items, and the differences sit at the edges.
The Common Core: Items Nearly Every State Requires
If your label carries these items, you are most of the way to compliance in any legal adult-use state.
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- Product name and product type (flower, concentrate, edible, topical)
- Net weight or net volume
- Total THC and total CBD content, plus delta-9 THC
- Serving size and number of servings per package for edibles
- Ingredient list, with allergens declared
- License or registration number of the licensee who produced and packaged the product
- Batch or lot number
- Harvest, manufacture, or packaging date, and an expiration or best-by date
- Required government warning statements
- Universal symbol identifying the item as cannabis
Warning Statements
Warnings are the most state specific part of the label, and they are the part regulators cite in audits. Most states require a statement that the product is for adults 21 and older, a keep out of reach of children statement, an impaired driving warning, and a pregnancy or breastfeeding warning. Several states add a statement that the product is not approved by the FDA and that its effects are not fully known. Wording is prescribed. Paraphrasing a warning is a violation in most jurisdictions, so copy the text from the current regulation and keep the type size and contrast the rule specifies.
Potency, Testing, and the Batch Record
Potency numbers must come from a certificate of analysis issued by a licensed testing lab. Label total THC, not just delta-9 THC, and run the THCA conversion so the printed number matches the lab result. Most states also require a way to reach the full test results, either by printing a batch identifier that consumers can look up or by placing a QR code on the package. Keep the lab report on file for the life of the batch plus the record retention period your state sets, which is often two to three years.
Cannabis Label Serving Size Explained
Child-Resistant Packaging and Hardware Rules
Label rules and package rules travel together. Federal law under the Poison Prevention Packaging Act sets the child-resistant testing protocol, and state cannabis rules adopt it for cannabis products. That means the container must be certified child resistant, or the product must be placed in a certified exit bag at the point of sale. Some states also require opaque packaging, resealable pouches for flower, and limits on package size. A compliant label on a non-compliant container is still a violation.
What You Cannot Print
No health or medical claims. No statement that the product treats, cures, or prevents a disease. No imagery or cartoon characters that appeal to children. No imitation of a trademarked food or candy brand. No unsubstantiated claims about potency or origin. Several states ban the words organic and natural unless the product holds a specific certification, and some restrict the word candy on edible labels.
How to Build a Compliant Label, Step by Step
- Identify the state where the product will be sold, and pull that agency's current labeling checklist.
- Write every required element from that checklist into a spreadsheet, one row per element.
- Assign a unique batch or lot number before printing anything, and log it against the production run.
- Obtain the certificate of analysis and copy the potency figures exactly as reported, with THCA converted to total THC by the state formula.
- Set serving size and total servings per package from the formulation, not from the mold size.
- Paste each required warning word for word, then set the font size and contrast to the minimum the regulation allows.
- Place the universal symbol and any state-specific mark in the position the rule requires.
- Confirm the container or exit bag is certified child resistant, and document the certification.
- Print a proof and check it against the state checklist line by line, then archive the approved proof.
- Recheck the label whenever the state updates its rules, and keep a change log with dates.
Where States Diverge Most
The gaps show up in warning wording, symbol design, font size, the presence of a QR code, terpene disclosure, and the treatment of hemp-derived THC. States also differ on whether the license number belongs to the cultivator, the processor, or both. Because these details change, treat the label as a living document tied to one market, not a template you reuse nationwide.