CFR › Title 20 › Part 210Part 210 — Creditable Railroad Service§ 210.1— General.§ 210.2— Definition of service.§ 210.3— Month of service.§ 210.4— Year of service.§ 210.5— Creditability of service.§ 210.6— Service credited for creditable military service.§ 210.7— Verification of service claimed.