45 CFR 79.8 - Service of complaint.
(a) Service of a complaint must be made by certified or registered mail or by delivery in any manner authorized by Rule 4(d) of the Federal Rules of Civil Procedure. Service is complete upon receipt.
(b) Proof of service, stating the name and address of the person on whom the complaint was served, and the manner and date of service, may be made by—
Title 45 published on 2013-10-01
no entries appear in the Federal Register after this date.