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FDA Food Contact Compliance: U.S. Importer's Guide

Compliance Guide · USA · 4 min read ·April 4, 2026 ·Updated July 10, 2026

21 CFR 176.170 explained for compostable packaging importers. Migration testing, PFAS, port-of-entry documentation requirements.

FDA food contact compliance guide for U.S. importers, shown with compostable bagasse plates, bowl and compartment tray
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    Any packaging in contact with food sold in the United States must comply with U.S. Food and Drug Administration (FDA) regulations under 21 CFR (Code of Federal Regulations). For importers of bagasse and molded fiber packaging, the specific requirements differ from those for plastic packaging, and the documentation burden falls on the importer, not the manufacturer.

    The regulatory framework

    FDA food-contact compliance operates through three pathways:

    1. Generally Recognized as Safe (GRAS) status: Materials with long-established safe use (paper, certain plastics, standard glass) are GRAS by default
    2. Food Contact Notification (FCN): A submission process for new food-contact substances. Once accepted, the substance is added to FDA’s Food Contact Substance database
    3. Food Additive Petition: The most rigorous pathway, used for substances requiring formal FDA review

    Bagasse and other molded fiber materials derived from food-grade agricultural inputs (sugarcane, wheat straw, rice husk) are typically classified under the 21 CFR 176.170 (“components of paper and paperboard in contact with aqueous and fatty foods”) regulation. This places bagasse in the GRAS-equivalent paper category.

    What 21 CFR 176.170 covers

    21 CFR 176.170 establishes that paper and paperboard intended for food contact must:

    • Be made from materials of suitable grade for the intended use
    • Contain only permitted components (specified in the regulation’s substance list)
    • Not transfer constituents to food in amounts exceeding specified limits
    • Be manufactured under good manufacturing practices (GMP)

    Documentation buyers should request

    For FDA compliance, importers should obtain from suppliers:

    1. Letter of Compliance: Statement from the manufacturer confirming the product meets 21 CFR 176.170 (or applicable section) for the intended food-contact use
    2. Material composition declaration: Listing all components and their percentages
    3. Migration test results: Lab analysis showing migration levels are within FDA limits for relevant food simulants (water, oil, acidic, ethanol)
    4. Independent third-party test reports: SGS, Intertek, or similar lab confirmation
    5. Manufacturer GMP certification: BRCGS, ISO 22000, or equivalent

    Migration testing requirements

    Migration testing measures whether substances from packaging transfer to food at concerning levels. FDA-recognised food simulants:

    • Aqueous food: Distilled water at 40°C / 24 hours
    • Acidic food: 3% acetic acid solution
    • Fatty food: n-Heptane or other approved fat-mimic
    • Alcoholic food: 10-95% ethanol depending on application

    Bagasse molded fiber plates and bowls typically pass migration testing comfortably for aqueous, acidic, and fatty food simulants; its inert plant-fiber composition does not release significant chemical residues. PFAS-related concerns (see below) require explicit testing.

    The PFAS consideration

    PFAS (per- and polyfluoroalkyl substances) have been used in molded fiber food packaging as grease-resistance additives. The FDA, several U.S. states (California AB 1200, Maine LD 1503, others), and the EU have moved to ban PFAS in food contact materials. In February 2024 the FDA confirmed that grease-proofing PFAS are no longer sold for food-contact use in the U.S. following a voluntary industry phase-out. See our PFAS-free verification guide for how buyers confirm a supplier is genuinely PFAS-free.

    A compliant bagasse supplier must:

    • Use PFAS-free formulations explicitly
    • Provide independent test results confirming PFAS levels below detection limits
    • Update material composition declarations to reflect PFAS-free status

    Buyers should request a PFAS declaration as part of standard supplier documentation, regardless of state.

    FDA inspection at port of entry

    FDA inspects imported food-contact materials at U.S. ports. Common reasons for detention:

    • Missing or invalid Letter of Compliance
    • Migration test results expired or not covering the specific SKU
    • PFAS testing absent or inadequate
    • Material composition declaration inconsistent with shipment manifest

    Importers should pre-clear documentation with their customs broker and have current Letter of Compliance and migration test reports available before goods arrive at port. For the full end-to-end process, see our guide on how to import bagasse tableware from India.

    Multi-market documentation strategy

    For chains importing into the U.S. and other markets, hold the following documentation set as standard:

    • FDA 21 CFR 176.170 Letter of Compliance (U.S.)
    • EN 13432 compostability certificate (EU and UK)
    • ASTM D6400 / BPI certificate (U.S. compostability)
    • FSSAI registration (if importing from India to other markets)
    • BRCGS Packaging Materials A or A+ (universal)
    • Third-party lab test reports (SGS, Intertek)
    • PFAS-free declaration
    • Sedex SMETA audit (ESG)

    Ecofy’s FDA position

    Ecofy’s bagasse molded fiber FDA-compliant plates, bowls, and compostable food trays meet 21 CFR 176.170 for aqueous, fatty, acidic, and alcoholic food simulants. We provide Letter of Compliance, migration test reports (SGS / Intertek), PFAS-free declaration, and BRCGS Grade A Letter of Conformity with every shipment to U.S. customers. Our QR-coded shipment documentation allows customs brokers to verify all certificates digitally, reducing port-of-entry friction.

    Frequently Asked

    Frequently asked questions

    Is bagasse FDA approved for food contact?

    The FDA does not issue product-by-product approvals for food packaging. Instead, bagasse and other molded-fiber materials fall under 21 CFR 176.170, the regulation for paper and paperboard components in contact with aqueous and fatty foods, and manufacturers demonstrate compliance through migration testing rather than a certificate of approval. A supplier should provide a Letter of Compliance to 21 CFR 176.170 plus third-party migration reports so importers can document conformity at port of entry.

    See Ecofy's compliance documentation
    Is bagasse tableware food safe and non-toxic?

    Bagasse is the fibrous residue left after sugarcane juice is extracted, so it is an inert plant fiber with no inherent toxic constituents, and it generally passes migration testing for water, acidic, fatty, and alcoholic food simulants. The safety concern with molded fiber has historically been added grease-proofing chemistry rather than the fiber itself, which is why PFAS-free verification matters. Buyers should confirm the specific SKU has current migration test results covering their intended use.

    How to verify a supplier is PFAS-free
    What does 21 CFR 176.170 require, and what are the conditions of use?

    21 CFR 176.170 sets the framework for paper and paperboard that contacts aqueous and fatty foods, requiring suitable-grade materials, only permitted components, migration within specified limits, and good manufacturing practices. It works alongside conditions-of-use tables that describe temperature and contact scenarios, from refrigerated storage through hot-fill and reheating, so migration testing should reflect how the product is actually used. Match the test conditions on your Letter of Compliance to your real application, such as hot soups in bowls or oily foods in trays.

    Do bagasse products still contain PFAS, and is a PFAS declaration required?

    In February 2024 the FDA confirmed that grease-proofing PFAS are no longer sold for food-contact use in the United States following a voluntary industry phase-out, and several states including California and Maine ban PFAS in food packaging outright. A responsible supplier uses PFAS-free formulations, provides test results showing PFAS below detection limits, and includes a PFAS-free declaration with each shipment. Buyers should request this declaration as standard documentation regardless of the destination state.

    PFAS-free bagasse verification guide
    What documentation do I need to import bagasse tableware into the USA?

    Importers, not manufacturers, carry the FDA documentation burden at the U.S. port of entry, so hold a Letter of Compliance to 21 CFR 176.170, third-party migration test reports from a lab such as SGS or Intertek, a PFAS-free declaration, and a material composition statement that matches the shipment. Compostability claims are separate and rely on ASTM D6400 or D6868 and BPI certification, not FDA. Pre-clear this set with your customs broker before goods arrive to reduce the risk of detention.

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