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PART 220 - RAILROAD COMMUNICATIONS Authority:49 U.S.C. 20102-20103, 20103, note, 20107, 21301-21302, 20701-20703, 21304, 21311; 28 U.S.C. 2461, note; and 49 CFR 1.89. Source:63 FR 47195, Sept. 4, 1998, unless otherwise noted.