21 CFR § 516.135 - Granting a request for determination of eligibility for indexing.

---
identifier: "/us/cfr/t21/s516.135"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "21 CFR § 516.135 - Granting a request for determination of eligibility for indexing."
title_number: 21
title_name: "Food and Drugs"
section_number: "516.135"
section_name: "Granting a request for determination of eligibility for indexing."
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: "516"
part_name: "NEW ANIMAL DRUGS FOR MINOR USE AND MINOR SPECIES"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "21 U.S.C. 360ccc-1, 360ccc-2, 371."
regulatory_source: "72 FR 41017, July 26, 2007, unless otherwise noted."
cfr_part: "516"
---


# 516.135 Granting a request for determination of eligibility for indexing.

(a) FDA will grant the request for determination of eligibility for indexing if none of the reasons described in § 516.133 for denying such a request applies.

(b) When a request for determination of eligibility for indexing is granted, FDA will notify the requestor in accordance with § 516.137.