US lawFederal (United States)RegulationsTitle 20 CFR — Employees' BenefitsChapter II — RAILROAD RETIREMENT BOARDPart 202 — EMPLOYERS UNDER THE ACT202.220 C.F.R. § 202.2Company or person principally engaged in carrier business.Last amended: 2016Year: 2026Length: 12 wordsOfficial source Cite as 20 C.F.R. § 202.2 (2026)Any company or person principally engaged in carrier business is an employer.Previous20 C.F.R. § 202.1Next20 C.F.R. § 202.3