21 C.F.R. § 514.121 Service of notices and orders.
Title 21 - Food and Drugs
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.
Title 21: Food and Drugs
PART 514—NEW ANIMAL DRUG APPLICATIONS
Subpart B—Administrative Actions on Applications
§ 514.121 Service of notices and orders.
