21 CFR § 530.40 - Safe levels and availability of analytical methods.

---
identifier: "/us/cfr/t21/s530.40"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "21 CFR § 530.40 - Safe levels and availability of analytical methods."
title_number: 21
title_name: "Food and Drugs"
section_number: "530.40"
section_name: "Safe levels and availability of analytical methods."
chapter_name: "FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES"
subchapter_number: "E"
subchapter_name: "ANIMAL DRUGS, FEEDS, AND RELATED PRODUCTS"
part_number: "530"
part_name: "EXTRALABEL DRUG USE IN ANIMALS"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "15 U.S.C. 1453, 1454, 1455; 21 U.S.C. 321, 331, 351, 352, 353, 355, 357, 360b, 371, 379e."
regulatory_source: "61 FR 57743, Nov. 7, 1996, unless otherwise noted."
cfr_part: "530"
---


# 530.40 Safe levels and availability of analytical methods.

(a) In accordance with § 530.22, the following safe levels for extralabel use of an approved animal drug or human drug have been established: [Reserved]

(b) In accordance with § 530.22, the following analytical methods have been accepted by FDA: [Reserved]