20 CFR § 355.8 - Service of complaint.

---
identifier: "/us/cfr/t20/s355.8"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "20 CFR § 355.8 - Service of complaint."
title_number: 20
title_name: "Employees' Benefits"
section_number: "355.8"
section_name: "Service of complaint."
chapter_name: "RAILROAD RETIREMENT BOARD"
subchapter_number: "E"
subchapter_name: "ADMINISTRATIVE REMEDIES FOR FRAUDULENT CLAIMS OR STATEMENTS"
part_number: "355"
part_name: "REGULATIONS UNDER THE ADMINISTRATIVE FALSE CLAIMS ACT"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "31 U.S.C. 3809; sec. 5203, Pub. L. 118-159, 138 Stat. 1773."
regulatory_source: "52 FR 47706, Dec. 16, 1987, as amended at 90 FR 25144, June 16, 2025, unless otherwise noted."
cfr_part: "355"
---


# 355.8 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.

(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—

(1) Affidavit of the individual making service;

(2) An acknowledged U.S. Postal Service return receipt card; or

(3) Written acknowledgment of the respondent.