21 CFR (Title 21 of the Code of Federal Regulations)

Title 21 of the Code of Federal Regulations (21 CFR) is a set of rules established by the U.S. Food and Drug Administration (FDA) to ensure the safety, effectiveness, and proper labeling of medicines, food, medical devices, and related products. It provides guidelines for how these products should be manufactured, tested, stored, and marketed to protect consumers. Compliance with 21 CFR helps maintain public health standards and prevents misinformation or harm from faulty or unsafe products. Essentially, it forms the legal framework that controls how products in these categories are regulated in the United States.