Matthew Warren

MATT WARREN is co-leader of Sidley’s Rail sector team and advises the nation’s largest freight railroads, investors, and infrastructure companies on complex regulatory, litigation, and transactional matters. He represents railroads in proceedings before the Surface Transportation Board (STB), other transportation regulators, and federal courts, and he regularly counsels clients on high-stakes disputes, precedent-setting rulemakings, and rail transactions requiring federal approval. Matt has played a leading role in some of the most consequential rail matters in recent years, including litigation and regulatory challenges involving rail service, competition policy, passenger rail operations, and industry-wide rulemakings, often spanning parallel proceedings before agencies and courts.

Matt is the contributing editor for Panoramic: Rail Transport (formerly Getting the Deal Through), a comparative law guide to legal systems governing rail transportation in various countries. Matt authors the “Global Overview” chapter of this annual publication and co-authors the “United States” chapter with others from Sidley’s Transportation practice. Matt has served in this role since 2019.