US State Food Laws for Online Sellers: Navigating the Patchwork
Selling food online in the US means selling into states with their own food laws on top of federal requirements. Here is a guide to navigating state food law for online sellers.
Federal food law (FALCPA, FSMA, FDA regulations) applies uniformly across the US. But states have additional food laws — cottage food regulations, additional allergen requirements, labelling mandates — that create a patchwork that online food sellers must navigate.
Why State Laws Matter for Online Sales
When you sell food to a customer in California, that sale may need to comply with California's specific food laws in addition to federal requirements. Selling into all 50 states means potentially needing to comply with 50 different state regulatory frameworks.
Key State Food Law Variations
New York: Additional allergen disclosure requirements beyond FALCPA, including sesame labelling requirements that preceded the FASTER Act, and specific menu labelling laws. The strictest state for allergen labelling.
California: Proposition 65 warnings required for products containing certain chemicals above threshold levels. Affects some food products, particularly those with acrylamide, lead, or other listed compounds.
Vermont: Strong GMO labelling advocacy history, though federal law now preempts state GMO labelling requirements.
Cottage food laws: Every state has different cottage food laws regulating what food can be made and sold from home kitchens. Products and sale channels vary significantly by state.
The Practical Approach
Most online food businesses comply with federal law and the most stringent state requirements (effectively New York and California). This covers the majority of compliance risk.
Ensure your Shopify store displays allergen information meeting the strictest US requirements with Allergen Matrix at saltai.app.
Understanding Cottage Food Laws Across States
Cottage food laws govern what home-based food producers can legally make and sell, and the variation between states is striking. Some states, like Texas and California, have relatively permissive cottage food frameworks that allow producers to sell directly to consumers both in person and online. Others impose strict caps on annual revenue — often between $5,000 and $50,000 — and restrict sales to farmers' markets, roadside stands, or direct delivery within the state only. Before opening a Shopify store and shipping nationwide, home-based producers must understand exactly what their home state permits.
The key distinction in most cottage food legislation is between non-hazardous and potentially hazardous foods. Baked goods, jams, dried herbs, and confectionery are typically permitted under cottage food exemptions. Meat products, dairy-based items, fermented foods, and anything requiring refrigeration are almost universally excluded. If your product category sits in a grey zone — say, a shelf-stable nut butter or a flavoured oil — you may need to consult your state's department of agriculture directly rather than relying on general guidance found online, since interpretations differ.
Online sales add another layer of complexity to cottage food compliance. Many states explicitly prohibit cottage food producers from shipping products across state lines, meaning a cottage food licence in Ohio does not authorise you to fulfil an order placed by a customer in Pennsylvania. If your Shopify store accepts orders nationally and you operate under a cottage food exemption, you may be unintentionally violating both your home state's law and the receiving state's requirements simultaneously. Geo-restricting your store to customers within your permitted sales area is a practical safeguard worth implementing early.
Proposition 65 and California's Unique Food Labelling Demands
California's Safe Drinking Water and Toxic Enforcement Act — universally known as Proposition 65 — requires businesses to provide clear and reasonable warnings before knowingly exposing Californians to chemicals listed as known carcinogens or reproductive toxins. For food sellers, this most commonly affects products containing acrylamide (formed naturally during high-heat cooking of starchy foods), lead, cadmium, and certain artificial colours. The threshold for triggering a warning obligation is extremely low, and enforcement is primarily driven by private plaintiff lawsuits rather than state action, which makes the litigation risk very real for small online sellers.
The practical challenge for Shopify merchants selling food into California is that Proposition 65 is not a labelling law in the traditional sense — it does not require a specific panel on your packaging the way FALCPA allergen declarations do. Instead, it requires a "clear and reasonable warning" before the point of purchase. For online sales, this means the warning may need to appear on your product listing page itself, not just on physical packaging that the customer only sees after delivery. Getting this wrong is expensive: civil penalties under Proposition 65 can reach $2,500 per day per violation, and private litigants actively search for non-compliant businesses.
If your products contain any ingredients that might carry Proposition 65 risk — roasted nuts, dark chocolate, root vegetables, certain spices, or imported goods with variable heavy metal content — it is worth testing your products against the listed thresholds and seeking legal advice specific to California. The Proposition 65 chemical list is updated regularly, and new food-relevant additions do occur. Many small food businesses choose to apply a general Proposition 65 warning to all California-facing listings as a precautionary measure, accepting some over-warning rather than risking under-warning. Whatever approach you take, document your reasoning and review it annually.
State-Level Allergen Requirements Beyond FALCPA
FALCPA established the nine major allergens that must be declared on US food labels, but it did not prevent states from enacting their own additional allergen disclosure requirements. New York is the clearest example: the state has historically moved ahead of federal law on sesame, requiring its disclosure before the FASTER Act brought sesame into the federal framework in 2023. New York also applies allergen disclosure obligations to food service establishments that extend in spirit to packaged food sold within the state. Sellers marketing to New York customers should treat full nine-allergen disclosure — clearly formatted and unambiguous — as a minimum standard rather than an aspiration.
Beyond New York, several states have enacted legislation or issued guidance requiring allergen information in specific formats or at specific points in the purchase journey. Massachusetts, for example, has a robust food allergy awareness programme that extends obligations to food establishments and has influenced how packaged food producers communicate with the state's consumer base. While these requirements do not always map cleanly onto e-commerce product listings, the underlying legislative intent is clear: consumers must have access to clear allergen information before they make a purchase. For Shopify merchants, displaying allergen information directly on product pages — not buried in PDFs or available only on physical packaging — is increasingly the expected standard.
The safest approach for any online food seller targeting the US market is to design your allergen communication strategy around the most demanding state requirements and apply it universally. This means declaring all nine FALCPA allergens clearly, using consistent formatting across every product listing, and updating disclosures promptly whenever a formulation or supplier changes. Tools like Allergen Matrix are built specifically to help Shopify merchants manage this at scale, so that as your product catalogue grows, your allergen information remains accurate and consistently displayed across every listing without requiring manual updates to each individual page.
Interstate Commerce, Shipping Laws, and State Registration Requirements
Several states require out-of-state food businesses to register with their department of agriculture before shipping food products to in-state consumers. These requirements are separate from FDA facility registration under FSMA and are often overlooked by small online food businesses that assume federal registration is sufficient. States with active food business registration programmes include Virginia, which requires out-of-state manufacturers to register, and a number of other states that impose permit or licence requirements on certain food categories — raw honey, meat products, and acidified foods among them — regardless of where the seller is based.
The enforcement of these state registration requirements against small online sellers has historically been inconsistent, but that is not a reliable reason to ignore them. As e-commerce food sales have grown substantially since 2020, several state agriculture departments have increased scrutiny of online food businesses, particularly those making health claims, selling allergen-sensitive products, or operating in high-growth categories like supplements and functional foods. Being registered and compliant means that if a customer complaint or an adverse event ever triggers a regulatory inquiry, you are not simultaneously facing a separate registration violation on top of the underlying issue.
The practical starting point is to identify your five or ten largest state markets by sales volume and research each state's department of agriculture requirements for out-of-state food sellers. Many states publish this information clearly online, and the registration fees involved are often modest. Building this compliance step into your business processes early — rather than retrofitting it after you have been operating for several years — is significantly less disruptive and positions your brand credibly when working with larger retail partners or co-manufacturers who will conduct their own due diligence on your compliance status.
Building a Compliance-First Shopify Store for the US Market
The patchwork of US state food laws can feel overwhelming, but the merchants who navigate it most effectively share a common characteristic: they treat compliance as an operational system rather than a periodic checklist. This means maintaining a centralised record of your product formulations and ingredients, linking those records to your labelling and product listing content, and establishing a process for reviewing and updating that content whenever anything changes. For Shopify merchants, this operational approach translates into choosing apps and tools that make compliance visible and maintainable at the product level, not just at the point of a one-time set-up.
Allergen information is one of the highest-risk areas in US food compliance, both because the legal requirements are specific and because the consumer harm from a missed disclosure can be severe. Displaying allergen information accurately on every product page — in a consistent format that meets the expectations of customers in the strictest states — is a foundational requirement for any serious online food business selling into the US. The volume of state-level nuance involved makes manual approaches to this fragile; a reformulation, a new product launch, or a supplier change should trigger an automatic review of every affected listing.
The good news is that building a compliance-first Shopify store does not require a legal team or an in-house regulatory specialist. It requires good processes, the right tools, and a commitment to treating food safety information as a first-class feature of your product listings rather than an afterthought. Start with the strictest requirements — federal FALCPA declarations, New York allergen standards, California Proposition 65 obligations — apply them universally, and layer in state-specific requirements as your sales data reveals where your customers actually are.
Try Allergen Matrix free at saltai.app — no credit card required.
SaltAI Team
SaltAI builds focused Shopify apps for food merchants and general merchants. Every app is tested in production at a real food store — including Vanda's Kitchen — before it ships.