39 CFR 231.1 : Postal Service (§ 1.1 To Parts 3061-3099) — (§ 1.1 To Parts 3061-3099) — United States Postal Service (§ 1.1 To Parts 967-999) — Organization And Administration (§ 211.1 To § 281.4) — Protection Of Post Offices (§ 231.1 And § 231.2) — Responsibility.

(a) The protection of mail, postal funds, and property is a responsibility of every postal employee.

(b) The Chief Postal Inspector is designated as the Security Officer for the U.S. Postal Service. That official is responsible for the issuance of instructions and regulations pertaining to security requirements within the Postal Service.