Partner, Secil Law
John Irving brings nearly three decades of experience in white collar criminal defense, government investigations, and high-stakes congressional and corporate inquiries. A former federal prosecutor and trusted advisor within the U.S. Department of Justice and the Environmental Protection Agency, John is known for his calm under pressure, strategic clarity, and unwavering discretion.
His clients have included Members of Congress, senior executives, political appointees, and corporate entities navigating complex criminal, civil, and regulatory matters—including matters that have dominated national headlines. John’s practice today is defined by sophisticated representation in sensitive investigations, classified matters, and strategic crisis response—often involving multiple enforcement authorities.
John served for over a decade in the U.S. Department of Justice, including as an Assistant U.S. Attorney in Washington, D.C., where he prosecuted a wide range of criminal cases and appeared regularly in court. He later served as Counsel to two Deputy Attorneys General and as Counsel to the Assistant Attorney General of DOJ’s Environment and Natural Resources Division, advising on departmental policy and enforcement matters at the highest levels.
Prior to his tenure at DOJ, John served as Investigative Counsel to the (then-named) U.S. House Committee on Government Reform & Oversight and as an Associate Independent Counsel in the investigation of former HUD Secretary Henry Cisneros.
Before joining SECIL Law, John was a Partner at E&W Law, a boutique firm focused on environmental and white-collar litigation, and previously spent over a decade at Holland & Knight LLP in Washington, D.C. There, he was a key member of the firm’s White-Collar Defense, Investigations & Compliance team.
His private practice experience includes:
John’s clients appreciate his deep fluency in government processes, his strategic precision in high-pressure moments, and his ability to quietly resolve matters that others cannot.
Partner, King & Spalding LLP
Granta Nakayama specializes in energy and environmental issues. A partner in our Environmental practice with a focus on energy, Granta represents companies in a range of regulatory and enforcement matters.
With training as a nuclear engineer and more than a decade of experience as a practicing engineer and technical manager, Granta represents clients with products or services regulated by the Environmental Protection Agency (EPA) and Consumer Product Safety Commission (CPSC), along with state government agencies such as the California Air Resources Board. He defends companies in enforcement actions and litigation involving regulations and rate proceedings, and represents their interests in agency rulemakings and Congressional matters.
From 2005 to 2009, Granta served as Assistant Administrator for the EPA Office of Enforcement and Compliance Assurance. In that role, he led 3,400 employees in a national enforcement and compliance program covering air, water, waste, toxic chemicals and pesticides. During his tenure, EPA achieved record annual pollutant reductions (more than 3 billion pounds) and injunctive relief (over $11 billion).
The National Law Journal has recognized Granta as a 2016 "Energy and Environmental Trailblazer." He has been listed by The Legal 500 every year since 2010, and was recognized as a "Hall of Famer" in both the environmental litigation and regulatory and the rail and road litigation and regulatory sections in 2020. He has also been ranked in each edition of Chambers USA since 2010.
Partner, Sidley Austin LLP
JUSTIN SAVAGE is a global co-leader of the firm’s Environmental, Health, and Safety practice and co-leads the Automotive and Mobility sector team, where he is a leading strategist for companies navigating the intersection of complex regulation, high-stakes litigation, and transformative industry change. For nearly three decades, he has led clients through their most consequential environmental, health, and safety (EH&S) disputes and mobility-sector challenges, earning a reputation as both a trusted counselor and a forceful advocate in the courtroom and the boardroom. A core part of Justin’s practice also focuses on regulatory strategy and market entry, advising emerging technology companies, new market entrants, and established industry leaders on launching new products, technologies, and business models. He regularly counsel clients in emerging fields such as robotics and AI on engaging with regulators, anticipating enforcement and compliance risk, and building defensible regulatory strategies that support growth rather than slow it.
Clients praise Justin as “an excellent litigator… strategically clever and creative… attentive, thoughtful and willing to go above and beyond” (Chambers USA 2025). Chambers USA has ranked him for Band 1 for Environment in District of Columbia (2017–2025) and Band 3 for Transportation: Road (Automotive) in USA—Nationwide (2023–2025).
Justin has won some of the most closely watched EH&S and transportation disputes of the past two decades and guided companies through crises where business continuity, brand reputation, and regulatory survival were on the line. His leadership has been repeatedly recognized: he is a three-time Law360 Environmental “MVP” (2018, 2024, 2025) and a Lawdragon “500 Global Leaders in Crisis Management” (2025-2026). He is the first call for companies facing bet-the-company challenges.
Justin’s clients concentrate in heavily regulated industries, including auto and mobility, aviation, chemicals, data centers, energy, mining, and refining. Justin litigates and counsels across the spectrum of U.S. environmental, transportation, and administrative laws, including the Clean Air Act (Title I, mobile sources, and fuels), incident response, RMP, NHTSA, Clean Water Act, TSCA, CSB investigations, APA claims, FOIA litigation, NEPA, and the Safe Drinking Water Act.
Prior to joining Sidley, Justin served for nearly a decade at the Environmental Enforcement Section of the U.S. Department of Justice, where he led teams in several multi-billion dollar enforcement cases. In his career, Justin has regularly taught on a range of environmental and litigation topics. For several years, Justin served as an instructor at the Justice Department’s National Advocacy Center where he taught hundreds of Assistant U.S. Attorneys and other agency lawyers on topics that included trial advocacy and evidence. Since rejoining private practice, Justin has served eight times as a faculty member for the American Law Institute’s Environmental Litigation program. He also lectured on a range of litigation and trial topics for bar associations and organizations, including serving as an instructor for the FAA on trial advocacy.
Partner, Secil Law
John Irving brings nearly three decades of experience in white collar criminal defense, government investigations, and high-stakes congressional and corporate inquiries. A former federal prosecutor and trusted advisor within the U.S. Department of Justice and the Environmental Protection Agency, John is known for his calm under pressure, strategic clarity, and unwavering discretion.
His clients have included Members of Congress, senior executives, political appointees, and corporate entities navigating complex criminal, civil, and regulatory matters—including matters that have dominated national headlines. John’s practice today is defined by sophisticated representation in sensitive investigations, classified matters, and strategic crisis response—often involving multiple enforcement authorities.
John served for over a decade in the U.S. Department of Justice, including as an Assistant U.S. Attorney in Washington, D.C., where he prosecuted a wide range of criminal cases and appeared regularly in court. He later served as Counsel to two Deputy Attorneys General and as Counsel to the Assistant Attorney General of DOJ’s Environment and Natural Resources Division, advising on departmental policy and enforcement matters at the highest levels.
Prior to his tenure at DOJ, John served as Investigative Counsel to the (then-named) U.S. House Committee on Government Reform & Oversight and as an Associate Independent Counsel in the investigation of former HUD Secretary Henry Cisneros.
Before joining SECIL Law, John was a Partner at E&W Law, a boutique firm focused on environmental and white-collar litigation, and previously spent over a decade at Holland & Knight LLP in Washington, D.C. There, he was a key member of the firm’s White-Collar Defense, Investigations & Compliance team.
His private practice experience includes:
John’s clients appreciate his deep fluency in government processes, his strategic precision in high-pressure moments, and his ability to quietly resolve matters that others cannot.
Partner, King & Spalding LLP
Granta Nakayama specializes in energy and environmental issues. A partner in our Environmental practice with a focus on energy, Granta represents companies in a range of regulatory and enforcement matters.
With training as a nuclear engineer and more than a decade of experience as a practicing engineer and technical manager, Granta represents clients with products or services regulated by the Environmental Protection Agency (EPA) and Consumer Product Safety Commission (CPSC), along with state government agencies such as the California Air Resources Board. He defends companies in enforcement actions and litigation involving regulations and rate proceedings, and represents their interests in agency rulemakings and Congressional matters.
From 2005 to 2009, Granta served as Assistant Administrator for the EPA Office of Enforcement and Compliance Assurance. In that role, he led 3,400 employees in a national enforcement and compliance program covering air, water, waste, toxic chemicals and pesticides. During his tenure, EPA achieved record annual pollutant reductions (more than 3 billion pounds) and injunctive relief (over $11 billion).
The National Law Journal has recognized Granta as a 2016 "Energy and Environmental Trailblazer." He has been listed by The Legal 500 every year since 2010, and was recognized as a "Hall of Famer" in both the environmental litigation and regulatory and the rail and road litigation and regulatory sections in 2020. He has also been ranked in each edition of Chambers USA since 2010.
Partner, Sidley Austin LLP
JUSTIN SAVAGE is a global co-leader of the firm’s Environmental, Health, and Safety practice and co-leads the Automotive and Mobility sector team, where he is a leading strategist for companies navigating the intersection of complex regulation, high-stakes litigation, and transformative industry change. For nearly three decades, he has led clients through their most consequential environmental, health, and safety (EH&S) disputes and mobility-sector challenges, earning a reputation as both a trusted counselor and a forceful advocate in the courtroom and the boardroom. A core part of Justin’s practice also focuses on regulatory strategy and market entry, advising emerging technology companies, new market entrants, and established industry leaders on launching new products, technologies, and business models. He regularly counsel clients in emerging fields such as robotics and AI on engaging with regulators, anticipating enforcement and compliance risk, and building defensible regulatory strategies that support growth rather than slow it.
Clients praise Justin as “an excellent litigator… strategically clever and creative… attentive, thoughtful and willing to go above and beyond” (Chambers USA 2025). Chambers USA has ranked him for Band 1 for Environment in District of Columbia (2017–2025) and Band 3 for Transportation: Road (Automotive) in USA—Nationwide (2023–2025).
Justin has won some of the most closely watched EH&S and transportation disputes of the past two decades and guided companies through crises where business continuity, brand reputation, and regulatory survival were on the line. His leadership has been repeatedly recognized: he is a three-time Law360 Environmental “MVP” (2018, 2024, 2025) and a Lawdragon “500 Global Leaders in Crisis Management” (2025-2026). He is the first call for companies facing bet-the-company challenges.
Justin’s clients concentrate in heavily regulated industries, including auto and mobility, aviation, chemicals, data centers, energy, mining, and refining. Justin litigates and counsels across the spectrum of U.S. environmental, transportation, and administrative laws, including the Clean Air Act (Title I, mobile sources, and fuels), incident response, RMP, NHTSA, Clean Water Act, TSCA, CSB investigations, APA claims, FOIA litigation, NEPA, and the Safe Drinking Water Act.
Prior to joining Sidley, Justin served for nearly a decade at the Environmental Enforcement Section of the U.S. Department of Justice, where he led teams in several multi-billion dollar enforcement cases. In his career, Justin has regularly taught on a range of environmental and litigation topics. For several years, Justin served as an instructor at the Justice Department’s National Advocacy Center where he taught hundreds of Assistant U.S. Attorneys and other agency lawyers on topics that included trial advocacy and evidence. Since rejoining private practice, Justin has served eight times as a faculty member for the American Law Institute’s Environmental Litigation program. He also lectured on a range of litigation and trial topics for bar associations and organizations, including serving as an instructor for the FAA on trial advocacy.
Partner, Boyden Gray PLLC
Michael Buschbacher is a partner at Boyden Gray PLLC. He represents public and private companies, trade associations, non-profits, and individuals in high-stakes litigation and administrative proceedings, with a particular focus on environmental and energy matters.
In addition to trial-level work, Mr. Buschbacher maintains an active appellate practice, both as merits counsel and as counsel for amici curiae. He has written amicus briefs quoted by the Seventh and Ninth Circuits. And his Supreme Court advocacy has been cited by The New Yorker, The New York Times, and E&E News. Mr. Buschbacher’s commentary on legal issues has been published in The Wall Street Journal, Newsweek, and The American Conservative.
Before joining the firm, Mr. Buschbacher served at the U.S. Department of Justice as counsel to the Assistant Attorney General for the Environment and Natural Resources Division. There, he advised senior Department leadership, served as the lead attorney on several lawsuits, and helped draft policy memoranda for the Department on the proper scope and procedure for environmental enforcement. Prior to serving in the government, Mr. Buschbacher was an associate in the D.C. office of Sidley Austin.
Mr. Buschbacher is a former clerk to Judge Alice M. Batchelder of the U.S. Court of Appeals for the Sixth Circuit and to Magistrate Judge Paul R. Cherry of the U.S. District Court for the Northern District of Indiana.
Mr. Buschbacher holds a B.A. in Music and Germanic Studies from Indiana University and a J.D., magna cum laude, from Notre Dame Law School.
Chairman, Project 21 National Advisory Board, National Center for Public Policy Research
Horace Cooper is a senior fellow with the National Center for Public Policy Research, chairman of the Project 21 National Advisory Board and a legal commentator.
Horace averages over 400 talk radio appearances per year representing the National Center and Project 21, in addition to regular television appearances and interviews by the print media.
Horace taught constitutional law at George Mason University in Virginia and was a senior counsel to U.S. House Majority Leader Dick Armey.
Principal, Beveridge & Diamond, PC
John offers clients the benefit of decades of experience as a top environmental lawyer, a leader of major bar and environmental organizations, and a distinguished military career.
John provides strategic counsel on high-stakes environmental and natural resources litigation, civil and criminal enforcement, and compliance. Working with clients makes the practice of law worthy and valuable to him as they advance strategic needs while protecting human health and the environment.
For more than two decades, John served as a senior leader on environment and natural resource matters at the United States Department of Justice (DOJ), where he supervised some of the department’s most significant litigation, including the Exxon Valdez oil spill, Love Canal, and Bunker Hill litigation. As the Senate-confirmed, Assistant Attorney General, ENRD, John worked on the most high-profile environment cases, and personally negotiated the multi-billion dollar resolutions of the Deepwater Horizon oil spill and the Volkswagen emissions scandal. These cases required a great deal of coordination, expert assistance, and sophisticated management of numerous players to reach successful outcomes. This experience has given John insight into the workings of large corporations, as well as into the challenges that major companies face in lawsuits.
As the former President of the Environmental Law Institute, the former Chair of the American Bar Association (ABA) Section on Environment, Energy, and Natural Resources, and the immediate past President of the American College of Environmental Lawyers, John has led each of the premier environmental organizations in the United States. In addition, he was the first government attorney to be elected and serve as the President of the District of Columbia Bar, now the largest bar in the nation.
Professional Background
John’s leadership is a defining characteristic of his long and distinguished legal career. Before joining the DOJ, John was the Chief Legislative Counsel of the U.S. Army. After graduating from the United States Military Academy at West Point, John served in Airborne, Ranger, and Special Forces units in Germany and Vietnam. His subsequent military assignments include as a criminal prosecutor in Germany and civil trial lawyer in the Pentagon; Chief of Litigation Branch, Europe; General Counsel, Defense Nuclear Agency; Staff Judge Advocate in Germany; and Director of Administrative and Civil Law, Judge Advocate General’s School, Charlottesville, Virginia. His military education includes being a Fellow, Army War College, and the Command and General Staff College. He is a graduate of the University of Santa Clara Law school (summa cum laude) and the University of Virginia (MA with honors).
John’s awards for government and military service include the President Rank Award from three different Presidents, the Bronze Star, Legion of Merit, Defense Meritorious Service Medal, Air Medal with Oak Leaf Clusters, and the Vietnamese Cross of Gallantry with Silver Star.
Partner, Secil Law
John Irving brings nearly three decades of experience in white collar criminal defense, government investigations, and high-stakes congressional and corporate inquiries. A former federal prosecutor and trusted advisor within the U.S. Department of Justice and the Environmental Protection Agency, John is known for his calm under pressure, strategic clarity, and unwavering discretion.
His clients have included Members of Congress, senior executives, political appointees, and corporate entities navigating complex criminal, civil, and regulatory matters—including matters that have dominated national headlines. John’s practice today is defined by sophisticated representation in sensitive investigations, classified matters, and strategic crisis response—often involving multiple enforcement authorities.
John served for over a decade in the U.S. Department of Justice, including as an Assistant U.S. Attorney in Washington, D.C., where he prosecuted a wide range of criminal cases and appeared regularly in court. He later served as Counsel to two Deputy Attorneys General and as Counsel to the Assistant Attorney General of DOJ’s Environment and Natural Resources Division, advising on departmental policy and enforcement matters at the highest levels.
Prior to his tenure at DOJ, John served as Investigative Counsel to the (then-named) U.S. House Committee on Government Reform & Oversight and as an Associate Independent Counsel in the investigation of former HUD Secretary Henry Cisneros.
Before joining SECIL Law, John was a Partner at E&W Law, a boutique firm focused on environmental and white-collar litigation, and previously spent over a decade at Holland & Knight LLP in Washington, D.C. There, he was a key member of the firm’s White-Collar Defense, Investigations & Compliance team.
His private practice experience includes:
John’s clients appreciate his deep fluency in government processes, his strategic precision in high-pressure moments, and his ability to quietly resolve matters that others cannot.
Senior Vice President, Environmental Health, Natural Resources Defense Counsel
As the chief visionary and strategist for NRDC’s advocacy to protect human health, Matthew Tejada oversees NRDC's clean air, water, toxics, and adaptation programs. He is also responsible for leading, scaling, and operationalizing the teams, structures, partnerships, and policy initiatives needed to tackle major health threats facing communities.
Prior to joining NRDC, Tejada served most recently as the deputy assistant administrator for environmental justice within the U.S. Environmental Protection Agency's (EPA) Office for Environmental Justice and External Civil Rights. In his 10 years with the EPA, Tejada led all aspects of environmental justice work throughout the agency and in coordination with other federal agencies, including the development of an array of grants and technical assistance vehicles, and the creation and deployment of a nationally consistent screening and mapping tool that highlights environmental justice issues across the United States. His work also direct community engagement, outreach and communication, and management of the National Environmental Justice Advisory Council.
Previously, Tejada was the executive director of Air Alliance Houston, an environmental justice organization that works to reduce the public health impacts from air pollution. His background also includes working as a public advocate with the Texas Public Interest Research Group—where he managed several advocacy programs focused on consumer, health and environmental issues, including federal ozone NAAQS review and urban transit planning—and as a teacher of English as a foreign language in the U.S. Peace Corps.
Tejada earned his bachelor’s degree in English from the University of Texas, Austin, and also holds a master’s degree in Russian and East European studies, as well as a PhD in modern history from St. Antony’s College, University of Oxford. He is based in the Washington, D.C., office.
Partner, Boyden Gray PLLC
Michael Buschbacher is a partner at Boyden Gray PLLC. He represents public and private companies, trade associations, non-profits, and individuals in high-stakes litigation and administrative proceedings, with a particular focus on environmental and energy matters.
In addition to trial-level work, Mr. Buschbacher maintains an active appellate practice, both as merits counsel and as counsel for amici curiae. He has written amicus briefs quoted by the Seventh and Ninth Circuits. And his Supreme Court advocacy has been cited by The New Yorker, The New York Times, and E&E News. Mr. Buschbacher’s commentary on legal issues has been published in The Wall Street Journal, Newsweek, and The American Conservative.
Before joining the firm, Mr. Buschbacher served at the U.S. Department of Justice as counsel to the Assistant Attorney General for the Environment and Natural Resources Division. There, he advised senior Department leadership, served as the lead attorney on several lawsuits, and helped draft policy memoranda for the Department on the proper scope and procedure for environmental enforcement. Prior to serving in the government, Mr. Buschbacher was an associate in the D.C. office of Sidley Austin.
Mr. Buschbacher is a former clerk to Judge Alice M. Batchelder of the U.S. Court of Appeals for the Sixth Circuit and to Magistrate Judge Paul R. Cherry of the U.S. District Court for the Northern District of Indiana.
Mr. Buschbacher holds a B.A. in Music and Germanic Studies from Indiana University and a J.D., magna cum laude, from Notre Dame Law School.
Chairman, Project 21 National Advisory Board, National Center for Public Policy Research
Horace Cooper is a senior fellow with the National Center for Public Policy Research, chairman of the Project 21 National Advisory Board and a legal commentator.
Horace averages over 400 talk radio appearances per year representing the National Center and Project 21, in addition to regular television appearances and interviews by the print media.
Horace taught constitutional law at George Mason University in Virginia and was a senior counsel to U.S. House Majority Leader Dick Armey.
Principal, Beveridge & Diamond, PC
John offers clients the benefit of decades of experience as a top environmental lawyer, a leader of major bar and environmental organizations, and a distinguished military career.
John provides strategic counsel on high-stakes environmental and natural resources litigation, civil and criminal enforcement, and compliance. Working with clients makes the practice of law worthy and valuable to him as they advance strategic needs while protecting human health and the environment.
For more than two decades, John served as a senior leader on environment and natural resource matters at the United States Department of Justice (DOJ), where he supervised some of the department’s most significant litigation, including the Exxon Valdez oil spill, Love Canal, and Bunker Hill litigation. As the Senate-confirmed, Assistant Attorney General, ENRD, John worked on the most high-profile environment cases, and personally negotiated the multi-billion dollar resolutions of the Deepwater Horizon oil spill and the Volkswagen emissions scandal. These cases required a great deal of coordination, expert assistance, and sophisticated management of numerous players to reach successful outcomes. This experience has given John insight into the workings of large corporations, as well as into the challenges that major companies face in lawsuits.
As the former President of the Environmental Law Institute, the former Chair of the American Bar Association (ABA) Section on Environment, Energy, and Natural Resources, and the immediate past President of the American College of Environmental Lawyers, John has led each of the premier environmental organizations in the United States. In addition, he was the first government attorney to be elected and serve as the President of the District of Columbia Bar, now the largest bar in the nation.
Professional Background
John’s leadership is a defining characteristic of his long and distinguished legal career. Before joining the DOJ, John was the Chief Legislative Counsel of the U.S. Army. After graduating from the United States Military Academy at West Point, John served in Airborne, Ranger, and Special Forces units in Germany and Vietnam. His subsequent military assignments include as a criminal prosecutor in Germany and civil trial lawyer in the Pentagon; Chief of Litigation Branch, Europe; General Counsel, Defense Nuclear Agency; Staff Judge Advocate in Germany; and Director of Administrative and Civil Law, Judge Advocate General’s School, Charlottesville, Virginia. His military education includes being a Fellow, Army War College, and the Command and General Staff College. He is a graduate of the University of Santa Clara Law school (summa cum laude) and the University of Virginia (MA with honors).
John’s awards for government and military service include the President Rank Award from three different Presidents, the Bronze Star, Legion of Merit, Defense Meritorious Service Medal, Air Medal with Oak Leaf Clusters, and the Vietnamese Cross of Gallantry with Silver Star.
Partner, Secil Law
John Irving brings nearly three decades of experience in white collar criminal defense, government investigations, and high-stakes congressional and corporate inquiries. A former federal prosecutor and trusted advisor within the U.S. Department of Justice and the Environmental Protection Agency, John is known for his calm under pressure, strategic clarity, and unwavering discretion.
His clients have included Members of Congress, senior executives, political appointees, and corporate entities navigating complex criminal, civil, and regulatory matters—including matters that have dominated national headlines. John’s practice today is defined by sophisticated representation in sensitive investigations, classified matters, and strategic crisis response—often involving multiple enforcement authorities.
John served for over a decade in the U.S. Department of Justice, including as an Assistant U.S. Attorney in Washington, D.C., where he prosecuted a wide range of criminal cases and appeared regularly in court. He later served as Counsel to two Deputy Attorneys General and as Counsel to the Assistant Attorney General of DOJ’s Environment and Natural Resources Division, advising on departmental policy and enforcement matters at the highest levels.
Prior to his tenure at DOJ, John served as Investigative Counsel to the (then-named) U.S. House Committee on Government Reform & Oversight and as an Associate Independent Counsel in the investigation of former HUD Secretary Henry Cisneros.
Before joining SECIL Law, John was a Partner at E&W Law, a boutique firm focused on environmental and white-collar litigation, and previously spent over a decade at Holland & Knight LLP in Washington, D.C. There, he was a key member of the firm’s White-Collar Defense, Investigations & Compliance team.
His private practice experience includes:
John’s clients appreciate his deep fluency in government processes, his strategic precision in high-pressure moments, and his ability to quietly resolve matters that others cannot.
Senior Vice President, Environmental Health, Natural Resources Defense Counsel
As the chief visionary and strategist for NRDC’s advocacy to protect human health, Matthew Tejada oversees NRDC's clean air, water, toxics, and adaptation programs. He is also responsible for leading, scaling, and operationalizing the teams, structures, partnerships, and policy initiatives needed to tackle major health threats facing communities.
Prior to joining NRDC, Tejada served most recently as the deputy assistant administrator for environmental justice within the U.S. Environmental Protection Agency's (EPA) Office for Environmental Justice and External Civil Rights. In his 10 years with the EPA, Tejada led all aspects of environmental justice work throughout the agency and in coordination with other federal agencies, including the development of an array of grants and technical assistance vehicles, and the creation and deployment of a nationally consistent screening and mapping tool that highlights environmental justice issues across the United States. His work also direct community engagement, outreach and communication, and management of the National Environmental Justice Advisory Council.
Previously, Tejada was the executive director of Air Alliance Houston, an environmental justice organization that works to reduce the public health impacts from air pollution. His background also includes working as a public advocate with the Texas Public Interest Research Group—where he managed several advocacy programs focused on consumer, health and environmental issues, including federal ozone NAAQS review and urban transit planning—and as a teacher of English as a foreign language in the U.S. Peace Corps.
Tejada earned his bachelor’s degree in English from the University of Texas, Austin, and also holds a master’s degree in Russian and East European studies, as well as a PhD in modern history from St. Antony’s College, University of Oxford. He is based in the Washington, D.C., office.
Partner, Secil Law
John Irving brings nearly three decades of experience in white collar criminal defense, government investigations, and high-stakes congressional and corporate inquiries. A former federal prosecutor and trusted advisor within the U.S. Department of Justice and the Environmental Protection Agency, John is known for his calm under pressure, strategic clarity, and unwavering discretion.
His clients have included Members of Congress, senior executives, political appointees, and corporate entities navigating complex criminal, civil, and regulatory matters—including matters that have dominated national headlines. John’s practice today is defined by sophisticated representation in sensitive investigations, classified matters, and strategic crisis response—often involving multiple enforcement authorities.
John served for over a decade in the U.S. Department of Justice, including as an Assistant U.S. Attorney in Washington, D.C., where he prosecuted a wide range of criminal cases and appeared regularly in court. He later served as Counsel to two Deputy Attorneys General and as Counsel to the Assistant Attorney General of DOJ’s Environment and Natural Resources Division, advising on departmental policy and enforcement matters at the highest levels.
Prior to his tenure at DOJ, John served as Investigative Counsel to the (then-named) U.S. House Committee on Government Reform & Oversight and as an Associate Independent Counsel in the investigation of former HUD Secretary Henry Cisneros.
Before joining SECIL Law, John was a Partner at E&W Law, a boutique firm focused on environmental and white-collar litigation, and previously spent over a decade at Holland & Knight LLP in Washington, D.C. There, he was a key member of the firm’s White-Collar Defense, Investigations & Compliance team.
His private practice experience includes:
John’s clients appreciate his deep fluency in government processes, his strategic precision in high-pressure moments, and his ability to quietly resolve matters that others cannot.
Clearing the Air: Recent Trump Administration Reforms to Environmental Criminal Enforcement
John Irving, Granta Nakayama, Justin Savage
With the growth of the administrative state over the last half-century, an equal expansion has...
Clearing the Air: Recent Trump Administration Reforms to Environmental Criminal Enforcement
John Irving, Granta Nakayama, Justin Savage
With the growth of the administrative state over the last half-century, an equal expansion has...
Environmental Justice - Dead or Just Napping?
Michael Buschbacher, Horace Cooper, John C. Cruden, John Irving, Matthew Tejada
Environmental Justice - an effort to affirmatively address disproportionate pollution and environmental burdens borne by...
Environmental Justice - Dead or Just Napping?
Michael Buschbacher, Horace Cooper, John C. Cruden, John Irving, Matthew Tejada
Environmental Justice - an effort to affirmatively address disproportionate pollution and environmental burdens borne by...
Topics
EPA’s FY 2024 Enforcement Results
EPA’s Office of Enforcement and Compliance Assurance (OECA) recently issued its annual results for FY...
Topics
EPA FY 2021 Enforcement Results
EPA recently released its Enforcement Results for Fiscal Year 2021. The statistics generally follow a...
Criminal and Civil Enforcement of Environmental Laws
John Irving
This Teleforum will provide an overview of criminal and civil enforcement provisions of environmental laws...