U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 28, 2025

All TitlesTitle 21Chapter IPart 111Subpart N - Subpart N—Returned Dietary Supplements
View all text of Subpart N [§ 111.503 - § 111.535]
§ 111.503 - What are the requirements under this subpart N for written procedures?

You must establish and follow written procedures to fulfill the requirements of this subpart.

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