Cannabis packaging and labeling requirements are set almost entirely by individual states, but the core rules line up closely across legal markets: the container must be child-resistant, tamper-evident, and opaque, and the label must identify the product, show potency per serving and per package, carry specified warnings and a universal THC symbol, and tie back to a lab-verified batch. Federal law supplies the child-resistance standard and limits what you can say about health effects; everything else runs through state cannabis regulators. If you make, distribute, or sell cannabis products, these overlapping requirements are what keep your license intact and your inventory on shelves.
What Has to Appear on the Label
Across legal markets, cannabis labels share a consistent checklist. You need the brand or trade name, the net weight or volume, the name and license number of the manufacturer or processor, and a unique batch or lot number tied to the state’s seed-to-sale tracking system. That batch number is how regulators trace a product back through cultivation, extraction, and packaging when something goes wrong. A peer-reviewed analysis of state labeling laws found batch numbers required in roughly 94 percent of states with legal programs, and production tracking labels in over 80 percent.
Most states also require the date of harvest or final packaging, the product type (flower, edible, concentrate, topical), and a list of all cannabinoids present. Medical-market products often carry additional fields: a patient’s registry identification number, the dispensary’s license number, or dosing instructions from the recommending physician.
A transposed batch number or a missing manufacturer name can trigger an audit, a recall, or administrative fines. Penalty specifics vary by state, but the pattern is consistent. Regulators treat labeling errors as serious compliance failures, not clerical slips.
Potency and Serving Size
THC and CBD numbers are the most scrutinized figures on any cannabis label, and the math has to be right. The label must show milligrams of THC and CBD per individual serving and the total milligrams in the entire container. A package of ten gummies at 10 mg each needs both the per-piece figure and the 100 mg total.
Most states cap edible servings at either 5 mg or 10 mg of THC, with the majority at 10 mg. Total package limits generally top out at 100 mg of THC for adult-use edibles, though the exact ceiling varies. Lawsuits have been filed in multiple states over products that understated or overstated THC content, and at least one multistate operator paid $100,000 to settle a class action after a labeling mix-up put THC in a product marked as CBD-only.
Labeled potency and tested potency don’t always match. Some labs apply a plus-or-minus 20 percent tolerance, but not every state specifies an acceptable margin, and those that do aren’t uniform. If the label says 100 mg and the product tests at 75 mg, expect trouble.
Warnings and the Universal THC Symbol
Every legal state requires one or more health warnings on cannabis packaging. The language varies, but the themes are consistent: impairment while driving or operating machinery, risks during pregnancy and breastfeeding, keeping products away from children, and the delayed onset of edibles. Some states dictate the exact wording. Others prescribe the topics and let licensees draft the language.
Most states also require a universal THC symbol on the principal display panel. The most common design is a cannabis leaf inside a warning triangle, following the international caution-sign format. A minimum size of one-half inch wide applies in most jurisdictions, and the symbol must contrast sharply with the packaging. An industry standards body has published a voluntary specification, and at least ten states have incorporated some version of it into their rules. Colors, interior text, and exact dimensions differ enough that a label designed for one state may not satisfy another.
Placement is as regulated as content. Warnings and symbols can’t be hidden on the bottom of a container or buried behind a fold. States typically require them on the primary display panel in a minimum font size, commonly 6-point or 8-point, in a color that stands out against the background.
Child-Resistant Packaging
Federal law enters here. Cannabis products must be packaged in child-resistant containers, and virtually every state defines “child-resistant” by reference to the federal Poison Prevention Packaging Act and its regulations at 16 C.F.R. Part 1700.1U.S. Consumer Product Safety Commission. Poison Prevention Packaging Act The standard predates legal cannabis, but it has become the universal benchmark.
Packages are tested with panels of children between 42 and 51 months old under 16 C.F.R. § 1700.20. Each child gets five minutes to try to open the package, then watches a demonstration, then gets another five minutes.2eCFR. 16 CFR 1700.20 – Testing Procedure for Special Packaging The thresholds are strict: at least 85 percent of children must fail before the demonstration and at least 80 percent must still fail afterward. For unit packaging like blister packs, the bar is 80 percent. At the same time, at least 90 percent of a senior-adult test panel must be able to open it, because packaging that stumps everyone drives consumers to leave containers open.3eCFR. 16 CFR 1700.15 – Poison Prevention Packaging Standards
Multi-serving products (a jar of gummies, a bottle of tincture) must remain child-resistant every time they are resealed, not just on first opening. Single-use packages can be designed to destroy themselves on opening, but they still have to meet the initial resistance standards. Not every container marketed as “child-resistant” has actually been tested and certified. Ask for the test documentation before you commit to a supplier.
Tamper-Evidence, Opacity, and Exit Bags
Cannabis containers must include tamper-evident features that show a customer whether the package was opened before purchase. Common approaches include heat-shrunk plastic seals, breakable caps, tear strips, and adhesive seals that leave a visible mark when removed.
Most states also require cannabis packaging, especially for edibles, to be completely opaque. You should not be able to see the product through the container. The rule keeps children from spotting something that looks like candy through a clear wrapper and keeps the product discreet in transit. Opacity typically applies to the primary container closest to the product, not to outer cartons or secondary wrapping.
Retail dispensaries in many states must place purchased products into an opaque exit bag before the customer leaves the store. The exit bag is a separate layer, not a substitute for the product’s own packaging. Exit bags generally don’t need to be child-resistant themselves, since that obligation sits with the product packaging, but they do need to be opaque and sealed.
Designs That Appeal to Children Are Off-Limits
This is where regulators are most aggressive and where enforcement is concentrated. Cannabis packaging cannot include cartoons, animated characters, mascots, or imagery that resembles popular snack foods, candies, or beverages marketed to children. The Federal Trade Commission has sent warning letters to sellers of edible cannabis products, telling them to stop using packaging that imitates conventional foods in ways likely to appeal to young children.4Federal Trade Commission. Government Warns Sellers of Edible Cannabis: Stop Using Packaging That Mimics Foods Popular With Kids
The restrictions reach beyond imagery. Words like “candy,” “treat,” and “snack” are generally prohibited. Fonts and color schemes that mimic well-known confectionery brands are off-limits. Some states go further with plain-packaging rules that limit logos to a single color and restrict the overall palette to muted tones.
Products that fail design review get pulled from shelves immediately, and repeat offenders risk losing their licenses. A gummy brand that uses bright, playful fonts may not intend to market to kids, but regulators focus on perception, not intent.
Health Claims You Cannot Make
Cannabis labels cannot claim that the product cures, treats, prevents, or diagnoses any disease or medical condition. The prohibition exists at both the state and federal level. The FDA has not approved cannabis for the treatment of any disease or condition outside a handful of specific prescription medications.5U.S. Food and Drug Administration. FDA Regulation of Cannabis and Cannabis-Derived Products, Including Cannabidiol (CBD) A label that says “relieves anxiety” or “helps you sleep” is making a health claim, even if it reads as modest compared to “cures cancer.”
The FDA monitors the marketplace for therapeutic claims about CBD and cannabis products and issues warning letters when it finds them. In 2025 alone, the agency sent warning letters to at least seven companies for marketing cannabis-derived products with unauthorized health claims.6U.S. Food and Drug Administration. Warning Letters for Cannabis-Derived Products These letters are the opening move before formal enforcement.
Some labels carry the disclaimer “This product has not been evaluated by the FDA and is not intended to diagnose, treat, cure, or prevent any disease.” That language comes from the dietary supplement world. The FDA has explicitly concluded that THC and CBD products don’t qualify as dietary supplements, so the standard supplement disclaimer doesn’t provide the legal cover manufacturers assume it does.5U.S. Food and Drug Administration. FDA Regulation of Cannabis and Cannabis-Derived Products, Including Cannabidiol (CBD) Putting it on a cannabis label does not make a health claim legal.
Ingredients and Allergens on Edibles
Cannabis edibles sit in a regulatory gap on ingredient labeling. These products are not regulated by the FDA, which means the federal requirements that apply to conventional food, including ingredient lists in descending order of weight and mandatory disclosure of major allergens like peanuts, tree nuts, milk, eggs, wheat, soy, fish, and shellfish, don’t apply through federal enforcement. States have filled the gap, and coverage is uneven.
Most legal states require edible cannabis products to carry a full ingredient list and to disclose major allergens. Many manufacturers follow the format used for conventional packaged food because consumers expect it and because it reduces liability. If a gummy contains gelatin derived from pork, or a chocolate bar includes milk and soy lecithin, that information should be on the label. The same goes for carrier oils in tinctures and concentrates. MCT oil derived from coconut, for example, is a tree nut allergen that matters to people with coconut allergies.
Lab Testing and the Certificate of Analysis
Behind every compliant label is a Certificate of Analysis, a lab report that confirms what is actually in the product. Most states require cannabis to be tested by an independent, licensed laboratory before it reaches retail shelves. Testing typically covers cannabinoid potency, residual solvents from extraction, pesticide residues, heavy metals, microbial contaminants like mold and bacteria, and moisture content.
A growing number of states require the label itself to include a link to the product’s Certificate of Analysis, usually through a QR code or printed URL. Scanning the code takes a consumer directly to the lab report, where the THC and CBD figures on the label can be checked against what the lab actually found.
QR codes and URLs don’t replace the printed information on the label. Potency figures, batch number, and test date still have to appear in text on the packaging itself. The digital link supplements the label.
Hemp Products Follow a Different Framework
Hemp and marijuana come from the same plant species, but federal law separates them by THC concentration. Under 7 U.S.C. § 1639o, hemp is cannabis with a total THC concentration of no more than 0.3 percent on a dry weight basis. Anything above that is marijuana under federal law and falls into the state-by-state cannabis framework described above.7Office of the Law Revision Counsel. 7 USC 1639o – Definitions
The statutory definition of hemp has been tightened. It now excludes cannabinoids synthesized outside the plant, intermediate products marketed directly to consumers, and final hemp-derived products containing more than 0.4 milligrams of combined THC and similar intoxicating cannabinoids per container.7Office of the Law Revision Counsel. 7 USC 1639o – Definitions The 0.4 mg cap effectively eliminates most of the hemp-derived intoxicating products that proliferated in the early 2020s.
For labeling, the FDA considers it illegal to add THC or CBD to food or to market them as dietary supplements, because both were first investigated as drugs before being marketed as supplements, which triggers an exclusion under 21 U.S.C. § 321(ff)(3)(B).8Office of the Law Revision Counsel. 21 USC 321 – Definitions; Generally The FDA has not issued a regulation creating an exception.5U.S. Food and Drug Administration. FDA Regulation of Cannabis and Cannabis-Derived Products, Including Cannabidiol (CBD) The USDA regulates hemp production but directs questions about consumer product labeling to the FDA.9Agricultural Marketing Service (USDA). Hemp Production Frequently Asked Questions (FAQ) For hemp-derived products, labeling obligations come primarily from state law, and those rules should be expected to shift as federal policy catches up to the rewritten definition.