FDA Food Contact Materials & Regulations: 21 CFR Complete Guide

Quick answer: FDA food contact material regulations fall under 21 CFR Parts 174–186, with Part 177 covering polymers and 21 CFR 177.1520 specifically governing HDPE, PP, and other olefin polymers. Compliance requires FDA-listed resins and additives, extractable limits within specified thresholds, and documented migration testing.

Part of our FDA & Food Safety Guide to Industrial Containers

Understanding 21 CFR for Food Contact Materials

The FDA regulates food contact materials through Title 21 of the Code of Federal Regulations (21 CFR). These regulations determine which materials can safely contact food during processing, packaging, storage, and transport. For industrial container buyers, understanding 21 CFR is essential for FDA compliance.

Key 21 CFR Parts for Food Contact

21 CFR 177.1520 — The Key Regulation for HDPE

Section 177.1520 governs olefin polymers — the category that includes HDPE (High-Density Polyethylene) and PP (Polypropylene). This is the most important regulation for industrial container compliance.

What 177.1520 requires:

FDA-Approved Plastics for Food Contact

Tier 1: Fully Approved (Most Common)

Tier 2: Approved with Restrictions

HDPE is the gold standard for industrial food-contact containers because it:

Migration Testing Requirements

Migration testing determines whether substances transfer from the container to food. The FDA sets limits based on the conditions of use:

Conditions of Use (21 CFR 176.170)

For most industrial HDPE containers (bulk storage, hoppers, pallets), Conditions C (room temp), E (dry), and F (frozen) apply — these have the least restrictive testing requirements.

Extractable Limits

Under 21 CFR 177.1520, HDPE must meet these extractable limits:

Bonar Plastics uses 100% virgin HDPE resin from US suppliers, with extraction testing results well below FDA limits.

Labeling Requirements for Food Containers

FDA regulations require specific labeling for food-contact containers:

Required Information

Labeling Best Practices

How to Verify FDA Compliance

Step-by-Step Verification Process

Red Flags to Watch For

FDA vs Other Food Safety Standards

Order FDA-Compliant Industrial Containers

All Bonar Plastics containers use 100% virgin HDPE with full 21 CFR 177.1520 compliance documentation:

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FAQ

What does 21 CFR Part 177 cover?

Part 177 covers polymers used in food-contact applications, including HDPE and PP under section 177.1520 and PET under section 177.1630, specifying approved formulations and conditions of use.

What extractable limits apply to HDPE under 21 CFR 177.1520?

HDPE must meet limits such as n-hexane extractables of 5.5% by weight or less and xylene extractables of 4.0% by weight or less for olefin copolymers, with specific migration typically under 0.05 mg/kg of food.

What labeling does a food-contact container need under FDA rules?

Labels should identify the material (e.g., HDPE), the manufacturer, a food-contact or FDA-compliant marking, applicable conditions of use, and the resin identification/recycling code.

What are red flags that a plastic container may not be FDA compliant?

Watch for recycled or regrind HDPE without a Letter of No Objection, missing compliance certificates, generic "food safe" claims with no CFR citation, and containers with visible defects or odors.

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