45 U.S.C. § 1108: Concerted economic action

(a) Strikes interfering with rail freight service of ConrailAny person engaging in concerted economic action over disputes with Amtrak Commuter or any commuter authority shall not be entitled to engage in any strike against, or otherwise to induce any employee of, Conrail, where an effect thereof is to interfere with rail freight service provided by Conrail. (b) Strikes interfering with Amtrak Commuter’s rail passenger serviceAny person engaging in concerted economic action over disputes arising out of freight operations provided by Conrail shall not be entitled to engage in any strike against, or otherwise to induce any employee of, Amtrak Commuter or any commuter authority, where an effect thereof is to interfere with rail passenger service. (c) Railway Labor Act deemed violatedAny concerted action in violation of this section shall be deemed to be a violation of the Railway Labor Act [45 U.S.C. 151 et seq.].