21 C.F.R. § 201.2 Drugs and devices; National Drug Code numbers.
Title 21 - Food and Drugs
The National Drug Code (NDC) number is requested but not required to appear on all drug labels and in all drug labeling, including the label of any prescription drug container furnished to a consumer. If the NDC number is shown on a drug label, it shall be displayed as required in §207.35(b)(3) of this chapter. [40 FR 52002, Nov. 7, 1975]
Title 21: Food and Drugs
PART 201—LABELING
Subpart A—General Labeling Provisions
§ 201.2 Drugs and devices; National Drug Code numbers.
