US lawFederal (United States)RegulationsTitle 20 CFR — Employees' BenefitsChapter II — RAILROAD RETIREMENT BOARDPart 364 — USE OF PENALTY MAIL TO ASSIST IN THE LOCATION AND RECOVERY OF MISSING CHILDREN364.120 C.F.R. § 364.1Purpose.Last amended: 2016Year: 2026Length: 27 wordsOfficial source Cite as 20 C.F.R. § 364.1 (2026)These regulations, which implement 39 U.S.C. 3220, provide the standards and guidelines for the use of Board penalty mail in the location and recovery of missing children.Cross-references to the US Code39:3220Next20 C.F.R. § 364.2