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Washington, D.C.
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Patrick D. Traylor
Partner, Washington, D.C., Houston
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Patrick Traylor has practiced in the area of environmental law for almost 20 years, with a particular focus on complex facility permitting, internal investigations and enforcement defense, and wind energy and wildlife matters.

Some of Patrick's most prominent recent clients include The AES Corporation, the American Petroleum Institute, The Anschutz Corporation, BHP Billiton, Daimler AG, Dominion Resources, Flint Hills Resources, INVISTA, Koch Industries, NRG Energy, Southern California Edison, TransCanada, and Venture Global LNG, in the following areas.

Complex facility permitting. Our clients in the energy and natural resources sector rely on Patrick to secure air quality and climate change permits for their most complex, business-critical, and sometimes controversial development projects. His work has included projects at refineries, petrochemical and fertilizer plants, LNG export terminals, coal- and gas-fired power plants, and emerging energy technologies. Our clients value Patrick's team-based focus on using business, technical, and legal principles to develop successful permitting and project development strategies.

Internal investigations and enforcement defense. Our clients rely on Patrick to conduct some of their most sensitive internal compliance investigations under the Clean Air Act. His extensive investigations work includes internal compliance audits, post-release investigations, and responses to administrative subpoenas at power plants, manufacturing facilities, and petrochemical plants. In addition to his litigation experience in federal district and appellate courts, our clients find that Patrick is particularly skilled at fashioning negotiated settlements where litigation risks prove economically unattractive.

Wind energy and wildlife. Our clients in the wind energy sector rely on Patrick to secure permits under the Endangered Species Act and other wildlife statutes for wind turbines. Our clients find that his experience as a member of the Department of the Interior’s Wind Turbine Guidelines Federal Advisory Committee is valuable to designing siting and operational approaches that maximize renewable energy production while minimizing adverse impacts to wildlife.

Hogan Lovells Publications
11 September 2015 "Fifth Circuit Determines MBTA's "Takings" Ban Only Applies to Intentional Acts That Directly Kill Migratory Birds." Energy and Natural Resources Alert, Hogan Lovells

08 December 2014 "How Will the EPA's New Ozone Air Quality Standard Affect the Permitting of New Facilities?" Environment Alert, Hogan Lovells

01 May 2013 "EPA comments on the April 2013 Keystone NEPA review—monetizing the social costs of carbon dioxide emissions." Environment Alert, Hogan Lovells

28 June 2012 "D.C. Circuit has upheld EPA’s greenhouse gas rules." Environment Alert, Hogan Lovells

10 January 2012 "Patrick Traylor serves as panelist at environmental forum." Environmental Alert, Hogan Lovells

10 January 2012 "Environment Practice Secures Important Victory for Minnkota Power Cooperative." Environmental Alert, Hogan Lovells

May 2010 "Climate Change Newsletter." Climate Change Newsletter, Hogan Lovells

29 April 2010 "SEC Guidance on Climate Change Disclosures Emphasizes Need for Early Warnings." SEC Update, Hogan & Hartson LLP

06 March 2009 "Stimulus Legislation Update: Issue 4 - New Online Resources for Tracking Stimulus Funds." Stimulus Legislation Update, Hogan & Hartson LLP

18 February 2009 "Stimulus Legislation Update: Issue 3." Stimulus Legislation Update, Hogan & Hartson LLP

11 February 2009 "Stimulus Legislation Update: Issue 2." Stimulus Legislation Update, Hogan & Hartson LLP

10 February 2009 "Stimulus Legislation Update: Issue 1." Stimulus Legislation Update, Hogan & Hartson LLP

05 August 2008 "EPA/DOJ Enforcement Policies: Privilege, Parallel Proceedings, Post-Booker Sentencing, and Enforcement Priorities." Environmental Update, Hogan & Hartson LLP

17 July 2008 "EPA Enforcement of CFC Refrigerant Rules Yields a $3.8 million Settlement Against Bristol-Myers Squibb." Environmental Update, Hogan & Hartson LLP

16 July 2007 "Overview of International and Domestic Climate Change Programs and Initiatives." Focus On Climate and Clean Energy, Hogan & Hartson LLP

23 May 2006 "EPA Announces Clean Air Act Enforcement Priorities for 2006-2007." Environment Update, Hogan & Hartson LLP

21 March 2006 "New Source Review Inoculation—Environmental Risk Management After New York v. EPA." Environmental Update, Hogan & Hartson LLP

16 December 2005 "DOJ Environmental Crimes Enforcement Secures Multi-million Dollar Fines and Sets Sights on New Prosecutorial Initiatives." Environmental Update, Hogan & Hartson LLP

01 March 2005 "New Source Review Inoculation – Environmental Risk Management in the Face of Regulatory Uncertainty." Environment Focus On, Hogan & Hartson LLP

16 February 2005 "Kyoto Protocol Enters Into Force February 16, 2005." Environment and Energy - Climate Change Update, Hogan & Hartson LLP

01 August 2004 "Stratospheric Ozone Enforcement Program Yields Multi-million Dollar Fines." Environmental Update, Hogan & Hartson LLP

25 May 2004 "EPA Announces Enforcement Initiative Against Hospitals." Environmental Update, Hogan & Hartson LLP

Published Works
28 May 2014 "Methane Regulation: It’s Not Just for Cows." Oil & Gas Monitor, www.oilgasmonitor.com/

29 June 2011 "Energy Coal Policy in the 112th Congress: Objectives, Tools, and Compromises." American Coal, American Coal Council, Issue 1, 2011

26 July 2010 "Tailpipes and Smokestacks: The Impact of Climate Change Policies on Mobile and Stationary Sources of Greenhouse Gases." The Legal Impact of Climate Change, Leading Lawyers on Navigating New Laws, Avoiding Liability, And Anticipating Future Challenges for Clients, 2010 Edition, Aspatore Books

July/August 2008 "An Allowance to Take to the Bank." Environmental Finance

July-August 2007 "What the US Can Learn From the CDM." Environmental Finance

01 January 1999 "Explaining the Controversy Surrounding United States v. Smithfield Foods, Inc." William & Mary Environmental Law & Policy Review

01 February 1998 "Presumptive MACT as a Regulatory Tool to Streamline the Development of National Emission Standards for Hazardous Air Pollutants." Environmental Lawyer

Climate Change
Litigation and Arbitration
Infrastructure, Energy, Resources and Projects
Legislation and Political Law Compliance
Administrative and Public Law
Environmental Litigation
Energy and Natural Resources
Renewable Energy
  • Clean Air Act Permitting, Compliance, and Litigation
  • Environmental Litigation
  • Energy Infrastructure Development and Climate Change
LL.M., The George Washington University Law School, 1998 J.D., South Texas College of Law, 1994 B.A., Texas A&M University, 1991
  • Member, Wind Turbine Guidelines Advisory Committee, U.S. Department of the Interior
  • Member, Boot Camp Steering Committee, Environmental Law Institute  
  • Member, Spring Conference Steering Committee, Environmental Markets Association, 2008
  • Chambers USA, District of Columbia, Environment (Up and Coming), 2014
  • Washington, D.C. Super Lawyers, Environmental, Energy & Natural Resources, Environmental Litigation, 2014-2015
COURT ADMISSIONS U.S. Court of Appeals, District of Columbia Circuit U.S. Court of Appeals, Tenth Circuit U.S. District Court, District of Columbia U.S. Court of International Trade U.S. District Court, District of North Dakota U.S. District Court, District of Colorado