If you sell packaged food in California, your label has to satisfy federal FDA rules and a layer of state-specific requirements on top: ingredient disclosures under the Sherman Food, Drug, and Cosmetic Law, Proposition 65 warnings for listed chemicals, stricter organic rules, new standardized date labels starting July 1, 2026, and a ban on four additives starting January 1, 2027. California food labeling requirements carry civil penalties up to $2,500 per violation under the Unfair Competition Law and up to $2,500 per day per violation under Proposition 65, and private class-action lawsuits routinely cost far more than the statutory penalties.
What Has to Appear on the Label
California’s retail food code requires every prepackaged food to carry a label complying with both the Sherman Law and federal labeling rules in 21 CFR Part 101.1Justia. California Health and Safety Code 114087-114094 – Article 8 Consumer Information The food must also be “honestly presented in a way that does not mislead or misinform the consumer.”
The principal display panel, which is the side a shopper is most likely to see, must show the product’s common name and the net quantity of contents. Net quantity appears in both U.S. customary and metric units, such as “Net Wt 15 oz (425 g).”2eCFR. 16 CFR Part 500 – Regulations Under Section 4 of the Fair Packaging and Labeling Act Minimum type size scales with the area of the display panel.3eCFR. 21 CFR 101.7 – Declaration of Net Quantity of Contents The information panel, usually to the right of the display panel, carries the manufacturer’s name and address, the ingredient list, and the nutrition facts. Folds, flaps, and closures cannot block any required information.
If anything on the label appears in a language other than English, every mandatory label element has to appear in that language too.4eCFR. 21 CFR 101.15 – Food Prominence of Required Statements A Spanish product name on the front cannot sit above an English-only ingredient list. A narrow exception exists for single-serving packages of 1½ ounces or less served in restaurants or on passenger carriers.
Very small packages used in restaurants and institutions get limited relief, and random-weight items like counter-weighed deli products are exempt from the dual-unit and placement rules as long as the net weight is clearly visible.5eCFR. 21 CFR 1.24 – Exemptions From Required Label Statements Most retail products do not qualify.
Ingredient List Rules California Enforces Strictly
Every packaged food needs a complete ingredient list in descending order by weight.6San Mateo County Health. Sherman Food, Drug, and Cosmetic Law Generic terms that hide what an ingredient actually is are not permitted.
Artificial colors have to be identified by their certified names, so “FD&C Yellow No. 5” rather than “artificial color.” Chemical preservatives like sodium benzoate and BHT must be explicitly named. The label must state whether the food contains any artificial flavoring, coloring, or chemical preservative. Sulfites must be declared whenever present at 10 parts per million or higher in the finished food.7eCFR. 21 CFR 130.9 – Sulfites in Standardized Food
Federal law lets you use generalized terms like “natural flavors,” but Proposition 65 can force greater specificity. If a flavoring agent contains a chemical listed as causing cancer or reproductive harm, you cannot bury it behind a generic term.
Allergen Disclosures
Federal law now recognizes nine major food allergens. The FASTER Act added sesame to the list effective January 1, 2023, joining milk, eggs, fish, shellfish, tree nuts, peanuts, wheat, and soybeans.8U.S. Food and Drug Administration. Allergic to Sesame? Food Labels Now Must List Sesame as an Allergen All nine must be disclosed either parenthetically inside the ingredient list or in a “Contains” statement immediately following it.
Sesame often hides inside broader ingredient terms like “natural flavors” or “spice mix.” The FDA expects manufacturers to call sesame out specifically whenever it is part of another ingredient. If you reformulated years ago and buried sesame under a catch-all term, the label needs updating.
Voluntary advisory phrases like “may contain peanuts” are allowed when cross-contact is a genuine risk, but they must be truthful. An advisory label is not a substitute for sanitation and segregation. The FDA has stated that a product may be deemed adulterated due to inadequate cross-contact controls even when it carries an advisory statement.9Food and Drug Administration. Sec 555.250 Major Food Allergen Labeling and Cross-contact – Draft Compliance Policy Guide
Nutrition Facts and Nutrient Claims
The Nutrition Facts panel follows federal requirements under the Nutrition Labeling and Education Act. Every label must declare calories, total fat, saturated fat, trans fat, cholesterol, sodium, total carbohydrates, dietary fiber, total sugars, added sugars, protein, and specified vitamins and minerals.10eCFR. 21 CFR 101.9 – Nutrition Labeling of Food Serving sizes have to match the FDA’s Reference Amounts Customarily Consumed for the food category, not a portion the manufacturer prefers.
Added sugars have specific formatting rules. The amount must be indented under total sugars and prefaced with the word “Includes,” as in “Includes 12g Added Sugars.” Below 0.5 grams per serving you can list it as zero. If the label makes no sugar claim and the product contains less than 1 gram, you can skip the line and add “Not a significant source of added sugars” at the bottom of the panel.
Nutrient content claims come with FDA-defined numeric thresholds. “Low sodium” requires no more than 140 milligrams per reference amount customarily consumed.11eCFR. 21 CFR 101.61 – Nutrient Content Claims for the Sodium Content of Foods Similar thresholds govern “low fat,” “high fiber,” and “good source” claims. Making these claims without meeting the numbers opens you to enforcement under the Unfair Competition Law.
Proposition 65 Warnings
Proposition 65 requires businesses to warn consumers before exposing them to chemicals known to cause cancer or reproductive harm. For food, common triggers include acrylamide in coffee and baked goods, lead in certain spices and supplements, and cadmium in chocolate. The warning must be “clear and reasonable,” and OEHHA publishes safe harbor language that satisfies the requirement if used correctly.12OEHHA. Proposition 65 Clear and Reasonable Warnings – Safe Harbor Methods and Content
Recent amendments to the safe harbor rules require short-form warnings to name at least one listed chemical rather than relying on generic language. A compliant short-form warning for a food product with a listed carcinogen reads something like: “CA WARNING: Cancer risk from exposure to [chemical name]. See www.P65Warnings.ca.gov/food.” Businesses using older generic short-form warnings need to transition.
Penalties can reach $2,500 per violation per day.13P65Warnings.ca.gov. What Are the Penalties for Violating Proposition 65 Most Prop 65 enforcement comes from private plaintiffs and advocacy groups, not government agencies, and settlements often run into six figures plus attorney fees. This is where California food labeling litigation is most active.
Marketing Claims That Draw Lawsuits
The Unfair Competition Law and False Advertising Law prohibit false or misleading claims about ingredients, nutritional value, or health effects. The Attorney General, local prosecutors, and private plaintiffs can all enforce them.14California Attorney General. Enforcement Advisory Letter Regarding Assembly Bill 899 “Natural,” “organic,” “healthy,” and “whole grain” each carry legal definitions, and loose use is a fast route to a class action.
Organic
Products labeled “organic” must comply with both the federal USDA National Organic Program and the California Organic Products Act. COPA goes further than federal law: it bans the term “transitional organic” outright, prohibits labeling fish or seafood as organic until USDA implements certification standards for those products, and requires separate state registration for businesses that process or handle organic products in California.15California Department of Food and Agriculture. California Organic Products Act of 2003 Using “organic” on a fertilizing material label without NOP compliance requires a prominent disclaimer that the product is not for use in organic production.16Legal Information Institute. California Code of Regulations Title 3 2320.4 – Use of the Term Organic on Labels
Healthy
The FDA finalized an updated definition of the “healthy” nutrient content claim in December 2024, with a compliance date of February 25, 2028. The new rules tie the claim to food group equivalents from the Dietary Guidelines rather than individual nutrient thresholds. Products must contain meaningful amounts of at least one recommended food group while staying under limits for added sugars, sodium, and saturated fat.17Federal Register. Food Labeling Nutrient Content Claims Definition of Term Healthy The 2028 federal date does not shield you from California enforcement in the meantime: regulators and private plaintiffs can still challenge “healthy” claims that clearly fail the updated criteria.
Whole Grain
A product making a “whole grain” health claim should contain at least 51% whole grain ingredients by weight per reference amount customarily consumed.18U.S. Food and Drug Administration. Health Claim Notification for Whole Grain Foods With Moderate Fat Content Labeling a product “whole grain” when the primary ingredient is refined flour is exactly the kind of claim that attracts class actions.
Bioengineered Food Disclosure
The USDA-enforced National Bioengineered Food Disclosure Standard requires manufacturers to disclose when a food is bioengineered or contains bioengineered ingredients. The USDA maintains a list of covered crops including corn, soybeans, canola, sugar beets, potatoes, summer squash, papaya, Arctic apples, AquAdvantage salmon, and others.19USDA Agricultural Marketing Service. List of Bioengineered Foods Even for foods not on the list, you must disclose if your own records show the ingredient is bioengineered.
Acceptable formats include text (“Bioengineered food” or “Contains a bioengineered food ingredient”), the USDA’s “Bioengineered” symbol, or an electronic or digital link. “May be bioengineered” is not acceptable; the statement must be affirmative. Records supporting the disclosure decision must be kept for at least two years after the product is sold or distributed at retail.20Federal Register. National Bioengineered Food Disclosure Standard If you use corn, soy, canola, or sugar, this rule almost certainly applies.
Date Labels Starting July 1, 2026
AB 660 standardizes food date labels in California for products manufactured on or after July 1, 2026. If you include a date label, you must use one of two approved phrases. “BEST if Used by” (or “BEST if Used or Frozen by”) communicates a quality date, meaning the food is at peak quality until that point but not necessarily unsafe afterward. “USE by” (or “USE by or Freeze by”) communicates a safety date, meaning the food should not be consumed past that point.21California Legislative Information. AB 660 Food and Beverage Products
Products too small for the full phrase can use abbreviations: “BB” for quality dates, “UB” for safety dates. Update label templates now; the distinction between quality and safety is substantive, and using the wrong term could mislead consumers and trigger enforcement.
Four Additives Banned Starting January 1, 2027
The California Food Safety Act (AB 418), signed in October 2023, bans four substances from food products sold in the state effective January 1, 2027: Red Dye No. 3, brominated vegetable oil, potassium bromate, and propylparaben.22Governor of California. AB 418 Signing After that date, manufacturing or selling food containing any of these ingredients in California is a violation.
Red Dye No. 3 affects the most products, appearing in candy, baked goods, snack foods, and some beverages. The FDA separately revoked authorization for Red Dye No. 3 in early 2025, but California’s ban came first. Potassium bromate is a dough conditioner, brominated vegetable oil is an emulsifier in citrus-flavored drinks, and propylparaben is a preservative. The deadline applies to products sold in California, not just those manufactured there, so out-of-state companies shipping in must comply.
Food Processor Registration
Most manufacturers and processors must obtain a Processed Food Registration from the CDPH Food and Drug Branch before selling packaged food in California. It covers general food categories including baked goods, snack foods, processed vegetables, seafood, and dietary supplements, and functions as the basic health permit. The requirement applies whether you manufacture in California or operate a warehouse storing food products in the state.23California Department of Public Health. Processed Food Registration Separate registrations apply for organic products and molluscan shellfish. The CDPH does not pre-approve labels; compliance is on you.24California Department of Public Health. Close Up On Food Labels – Information for California Food Processors
Who Can Sue You and for How Much
Enforcement comes from three directions, and private litigation is where the real financial damage happens.
- Unfair Competition Law: The Attorney General, district attorneys, and private parties can all bring actions. Civil penalties reach up to $2,500 per violation, and courts can order restitution and injunctive relief.25California Legislative Information. California Business and Professions Code 17206
- Proposition 65: Up to $2,500 per violation per day, with most enforcement driven by private “bounty hunter” lawsuits. Settlements routinely run into six figures.13P65Warnings.ca.gov. What Are the Penalties for Violating Proposition 65
- Misbranding: Selling misbranded food is unlawful under the Health and Safety Code, and the CDPH and county health departments can order product recalls or stop sales.26California Legislative Information. California Health and Safety Code 110760
California’s consumer protection framework is among the most plaintiff-friendly in the country. A single misleading claim, such as “all natural” on a product with synthetic ingredients, or a missed allergen disclosure, can generate multi-million-dollar settlements and court-ordered label overhauls. The reputational cost often exceeds the financial penalty.