21 CFR 211.150 : Food And Drugs (§ 1.1 To Parts 1403-1499) — (§ 200.5 To § 299.5) — Food And Drug Administration, Department Of Health And Human Services (Continued) (§ 200.5 To § 299.5) — Drugs: General (§ 200.5 To § 299.5) — Current Good Manufacturing Practice For Finished Pharmaceuticals (§ 211.1 To § 211.208) — Holding And Distribution (§ 211.142 And § 211.150) — Distribution procedures.

Written procedures shall be established, and followed, describing the distribution of drug products. They shall include:

(a) A procedure whereby the oldest approved stock of a drug product is distributed first. Deviation from this requirement is permitted if such deviation is temporary and appropriate.

(b) A system by which the distribution of each lot of drug product can be readily determined to facilitate its recall if necessary.