Government Experience

  • Environmental Protection Agency—Deputy Chief of Staff for Policy, Office of the Administrator (2017-2018)
  • United States Senate—Senior Counsel, U.S. Senate Committee on Environment and Public Works (EPW), Chairman and Sen. Jim Inhofe (R-Okla.) (2015-2017)
  • United States House of Representatives—Senior Counsel and Director of Oversight and Investigations, U.S. House of Representatives Committee on Natural Resources, Chairman and Rep. Doc Hastings (R-Wash.) (2011-2015)
  • United States Senate—Legislative Fellow, Personal Office of Senator Dianne Feinstein (D-CA) (2010)
  • Environmental Protection Agency—Associate Deputy General Counsel, Assistant General Counsel, and Attorney-Advisor, Office of General Counsel (2001-2011)


  • University of Iowa College of Law, J.D.
  • University of Iowa School of Journalism and Mass Communications, M.A.
  • University of New Hampshire, B.A., cum laude


  • District of Columbia
  • Massachusetts

Byron R. Brown

Senior Counsel

Companies and trade associations looking to understand and engage with the federal government call on Byron Brown to track and analyze emerging issues and to develop and execute effective advocacy strategies on a range of topics, including infrastructure funding; natural resources; sustainability; supply chains; and environmental, social, and corporate governance. Based on his experience as a congressional staffer and administrative law attorney, Byron offers clients a 360-degree view of policymaking, from how legislation is drafted, negotiated, and enacted into law to the development of agency guidance and regulations to challenges in federal court and responses to congressional investigations.

Although Byron regularly advises on a range of environmental and natural resource matters, clients have increasingly called upon him for advice on infrastructure funding and development opportunities, supply chain security, and energy transition under the Infrastructure Investment and Jobs Act, the CHIPS and Science Act, and the Inflation Reduction Act.

As someone who has drafted both congressional legislation and agency regulations, Byron assists clients with preparing regulatory comments, drafting legislative text, and preparing for congressional hearings and agency meetings. He has helped health care companies and a consumer products manufacturer respond to congressional investigations and regularly counsels clients on compliance with federal government ethics, gift, and lobbying disclosure laws.

Prior to joining Crowell & Moring in 2018, Byron served in senior legal and policy roles with the U.S. Environmental Protection Agency, where he advised the administrator, the general counsel, and other senior officials on responses to congressional investigations; on the development, implementation, and defense of regulations; and on the operation and management of a cabinet-level agency with 15,000 employees and an $8 billion annual budget. Byron also served as senior counsel for the Senate Committee on Environment and Public Works, where he led the committee’s oversight work and handled legislation and policy matters involving mining, recycling, and the cleanup and redevelopment of contaminated sites. Byron previously served as senior counsel and director of oversight and investigations for the House Committee on Natural Resources, where he led numerous investigations into federal energy policy, government ethics, federal contracting, and scientific integrity.

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