21 CFR Part 174

2 sections.

§ 174.5
§ 174.5 General provisions applicable to indirect food additives.
§ 174.6
§ 174.6 Threshold of regulation for substances used in food-contact articles.

This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.