Allergen Labeling in the USA: FALCPA, FASTER Act & What Restaurateurs Must Know

Introduction

The United States operates its own allergen labeling framework — one that differs from the European Union’s LMIV/FIC system in meaningful ways. Since 2004, the FALCPA (Food Allergen Labeling and Consumer Protection Act) has formed the legislative foundation, establishing what was originally known as the „Big 8“ major food allergens. In 2023, that list grew to nine when the FASTER Act officially recognized sesame as a major allergen, effective January 1 of that year.

For European restaurateurs expanding to the US, for international chains managing menus across jurisdictions, and for anyone serving guests from the American market, understanding this system is not optional — it is a practical necessity. The differences in allergen scope, labeling terminology, and regulatory structure between the two systems can lead to compliance gaps for those who assume the EU framework translates directly. This article explains what the US system requires, how it works, and where the key divergences lie.

FALCPA — The Foundation Since 2004

The Food Allergen Labeling and Consumer Protection Act was signed into law in 2004 and came into effect on January 1, 2006. Its central achievement was defining, for the first time at the federal level, a mandatory list of major food allergens — the original „Big 8“: milk, eggs, fish, crustacean shellfish, peanuts, tree nuts, soybeans, and wheat.

Under FALCPA, manufacturers of packaged food products regulated by the FDA (Food and Drug Administration) are required to declare these allergens clearly on the label. Two labeling formats are permitted: the allergen may be highlighted within the ingredient list itself (for example, in bold: wheat flour), or a separate „Contains:“ statement may appear immediately after or adjacent to the ingredient list (for example, „Contains: Wheat, Milk, Eggs“).

One critical boundary to understand: FALCPA’s mandatory requirements apply primarily to packaged food sold in retail and commercial settings — not to restaurant meals. Foodservice operations fall under a different regulatory structure, which is addressed in detail in section five. Note also that FALCPA does not apply to meat, poultry, or egg products regulated by the USDA rather than the FDA.

FASTER Act 2023 — Sesame as the 9th Major Allergen

The Food Allergy Safety, Treatment, Education, and Research Act (FASTER Act) was signed into law in April 2021 and took full effect on January 1, 2023. Its headline change: sesame is now officially the ninth major food allergen in the United States, bringing the list from „Big 8“ to „Top 9.“

The recognition of sesame was long overdue. Sesame allergy prevalence has been rising steadily in the US, with research suggesting it affects approximately 1.6 million Americans. Severe anaphylactic reactions to sesame are well-documented, yet prior to the FASTER Act, sesame was not subject to mandatory declaration — meaning it could appear in products under ingredient names unfamiliar to consumers, such as tahini, benne, or gingelly oil, without triggering a labeling obligation.

US Top 9 vs. EU-14: A Direct Comparison

The differences between the two systems become starkly clear when placed side by side:

The most consequential terminological difference concerns gluten. The US system designates „wheat“ as the allergen — a narrower category that does not automatically encompass rye, barley, or oats, even though all three contain gluten and pose serious risks to individuals with coeliac disease. The EU, by contrast, uses the broader category „cereals containing gluten,“ which captures wheat, rye, barley, oats, spelt, and kamut under a single mandatory declaration.

FDA Rules for Restaurants

This is where the most significant misconception arises: FALCPA and the FASTER Act do not require restaurants to declare allergens on their menus. At the federal level, there is no law compelling a US restaurant, café, food truck, or canteen to list allergens on the menu, on signage, or in any other consumer-facing format. The FDA Food Code — a model document updated every four years that states may adopt in whole or in part — recommends allergen awareness training and internal documentation practices for food service operations, but it is advisory, not binding.

That said, restaurants are not without legal exposure. Two vectors of risk exist regardless of mandatory labeling requirements. First, civil liability: if a guest suffers an allergic reaction after being provided inaccurate information — or no information at all — the establishment may face negligence claims. Second, the Americans with Disabilities Act (ADA): severe food allergy, including anaphylaxis risk, has been recognized in some legal contexts as a disability. Restaurants classified as „places of public accommodation“ may have obligations to make reasonable accommodations for guests with life-threatening allergies, which can include accurate allergen information.

State Laws: Significant Variation Across Jurisdictions

Because federal law leaves a gap for restaurant allergen requirements, individual states have stepped in — with notably different outcomes:

• Massachusetts: The most comprehensive state framework. The Massachusetts Food Allergy Awareness Act (2009) requires every food establishment to have at least one certified employee who has completed an approved allergen awareness training program. All food workers must understand allergen risks and safe handling practices.
• Michigan: Requires that an allergen awareness poster be visibly displayed in every commercial kitchen, providing staff with reference information on major allergens.
• Rhode Island and Virginia: Have each enacted their own allergen awareness legislation for food service, with requirements around staff training and customer communication.

The trajectory is clear: more states are introducing their own rules, and the patchwork is becoming more complex. For operations active across multiple states, the most defensible strategy is to apply the strictest applicable standard uniformly — it simplifies compliance management and demonstrates a genuine commitment to guest safety.

Relevance for International Restaurateurs

The practical implications of the US system vary depending on your position in the market:

EU operators expanding to the US: Your EU compliance framework is a strong foundation, but it does not map directly onto US requirements. You will need to assess the state-specific rules in each jurisdiction where you operate and build staff training programs accordingly. Assuming EU compliance is sufficient can leave you exposed in states with active allergen awareness legislation.

EU restaurants receiving US tourists: American guests are accustomed to „Contains:“ notation and clear allergen callouts. A well-structured German-language allergen declaration may be legally sufficient under EU law but practically confusing for a guest who expects US-style formatting. Clear, accessible communication — ideally in multiple languages — builds trust and reduces liability.

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Frequently Asked Questions

Which allergens must be declared in the USA?

Since the FASTER Act took effect on January 1, 2023, the United States recognizes nine substances as Major Food Allergens: milk, eggs, fish, crustacean shellfish, peanuts, tree nuts, soybeans, wheat, and sesame. These must be clearly declared on all packaged food products regulated by the FDA — either through highlighting within the ingredient list or via a dedicated „Contains:“ statement immediately adjacent to it.

An important nuance: the US system designates „wheat“ as the allergen, not „gluten.“ This means rye, barley, and oats — all of which contain gluten and pose serious risks to individuals with coeliac disease — do not fall under the mandatory labeling requirement by default. A product could legally contain barley malt extract and carry no allergen warning related to gluten under US rules. Restaurateurs and product developers working across the EU and US markets must actively manage this gap, as what is legally compliant in one jurisdiction may leave consumers underinformed in the other.

What changed with the FASTER Act 2023?

The FASTER Act — Food Allergy Safety, Treatment, Education, and Research Act — represents the most significant revision to US allergen law since FALCPA’s introduction in 2004. Its primary achievement: sesame was officially declared the ninth major food allergen in the United States, effective January 1, 2023. Prior to this, sesame was not subject to mandatory labeling despite growing prevalence and the severity of reactions it can trigger. It could appear in ingredient lists under names such as tahini, benne seeds, or gingelly oil without any allergen warning being legally required.

Beyond sesame, the FASTER Act introduced something structurally new to US allergen law: a mandate for the FDA to periodically review its list of major food allergens and add new ones when scientific evidence warrants it. This gives the US its first formal mechanism for expanding allergen requirements dynamically over time, rather than requiring a new act of Congress for each addition. During the 2023 transition period, regulators observed some manufacturers incorporating sesame into formulations to avoid standalone labeling — a practice the FDA has indicated it will scrutinize closely.

Must US restaurants list allergens on their menus?

At the federal level, the answer is no — there is currently no US law requiring restaurant menus to declare allergens. FALCPA and the FASTER Act are directed at manufacturers of packaged food products regulated by the FDA, not at food service establishments. The FDA Food Code, which provides guidance for state adoption, recommends allergen awareness training and internal documentation, but its provisions are advisory rather than legally binding.

However, the absence of a federal mandate does not translate to the absence of risk or responsibility. Several states have enacted their own requirements: Massachusetts mandates allergen awareness certification for food service workers; Michigan requires allergen posters in commercial kitchens; Rhode Island and Virginia have their own legislative frameworks. Beyond state law, civil liability exposure is real — a restaurant that provides inaccurate allergen information, or none at all, can face negligence claims if a guest suffers an allergic reaction. Operating to the standard of the strictest applicable jurisdiction, and investing in staff training, is both legally prudent and the right thing to do for guests whose health depends on accurate information.

What are the key differences between EU and US allergen labeling?

The differences are substantial and operate across multiple dimensions. In terms of scope, the EU mandates declaration of 14 allergens; the US requires 9. Five categories are mandatory in the EU but absent from the US list: celery, mustard, lupin, molluscs, and sulphur dioxide/sulphites. Conversely, the lists share nine common allergens, though the terminology differs: the EU uses „cereals containing gluten“ (covering wheat, rye, barley, oats, and spelt), while the US specifies only „wheat“ — leaving rye and barley outside the mandatory declaration unless voluntarily included.

The regulatory structure also differs fundamentally. The EU’s FIC Regulation directly obligates food service operators — restaurants, caterers, delivery services — to provide allergen information to consumers. In the US, this obligation exists only at the state level and varies considerably by jurisdiction. For internationally active restaurateurs, this means maintaining two parallel compliance frameworks: the EU system, which is broad and directly applicable to food service, and the US system, which is narrower in allergen scope but fragmented across fifty state jurisdictions. Both systems are evolving, making ongoing monitoring a necessary part of compliance management.

Last updated: 2026 · ChinaYung — Allergen labeling for food service