21 CFR 58.3 : Food And Drugs (§ 1.1 To Parts 1403-1499) — (§ 1.1 To § 99.501) — Food And Drug Administration, Department Of Health And Human Services (§ 1.1 To § 99.501) — General (§ 1.1 To § 99.501) — Good Laboratory Practice For Nonclinical Laboratory Studies (§ 58.1 To § 58.219) — General Provisions (§ 58.1 To § 58.15) — Definitions.