Railroad Antitrust Enforcement Act of 2011

[AI summary unavailable — showing source text] Railroad Antitrust Enforcement Act of 2011 - Amends the Clayton Act to grant the United States exclusive authority to bring suit for injunctive relief against a common carrier that is not a rail common carrier subject to the jurisdiction of the Surface Transportation Board (STB). Revises provisions prohibiting anticompetitive transactions except for those approved by specified federal agencies acting under certain statutes to eliminate the exemption for certain STB approved transactions. Provides that, in any civil action against a rail common carrier, the U.S. district court shall not be required to defer to the primary jurisdiction of the STB. Empowers the Federal Trade Commission (FTC) to regulate, and engage in antitrust enforcement regarding, collective rate agreements and certain transactions, including railroad mergers and acquisitions. Permits treble damages against railroad common carriers in antitrust suits to parties injured by antitrust violations without regard to whether such railroads have filed rates or whether a complaint challenging rates has been filed. Amends federal transportation law to terminate the exemptions from antitrust laws for collective ratemaking agr…