21 CFR § 514.121 - Service of notices and orders.

---
identifier: "/us/cfr/t21/s514.121"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "21 CFR § 514.121 - Service of notices and orders."
title_number: 21
title_name: "Food and Drugs"
section_number: "514.121"
section_name: "Service of notices and orders."
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: "514"
part_name: "NEW ANIMAL DRUG APPLICATIONS"
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. 321, 331, 351, 352, 354, 356a, 360b, 360ccc, 360ddd, 360ddd-1, 371, 379e, 381."
regulatory_source: "40 FR 13825, Mar. 27, 1975, unless otherwise noted."
cfr_part: "514"
---


# 514.121 Service of notices and orders.

All notices and orders under this subchapter E and section 512 of the act pertaining to new animal drug applications shall be served:

(a) In person by any officer or employee of the Department designated by the Commissioner; or

(b) By mailing the order by certified mail addressed to the applicant or respondent at his last known address in the records of the Food and Drug Administration.