Greg L. Johnson

Greg L. Johnson is a Louisiana criminal defense and environmental lawyer, shareholder, and leader of the Energy and Environmental Regulatory Practice Group at Liskow & Lewis, APLC. He advises domestic and international companies on environmental permitting, regulatory compliance, transactions, litigation, and enforcement concerns. Greg frequently works with industrial, chemical, petrochemical, oil and gas, manufacturing, and renewable energy clients. His chemical engineering background helps him evaluate technical issues, communicate with regulators and experts, and identify environmental risks affecting major projects and commercial decisions.

Greg earned his J.D., summa cum laude, from Loyola University New Orleans College of Law, where he served on the Loyola Law Review. He received his B.S. in Chemical Engineering from the University of Texas. He is admitted in Louisiana and before all state and federal courts in Louisiana. His court admissions include the US Courts of Appeals for the Fifth and D.C. Circuits. His combined legal and engineering education supports detailed analysis of emissions, permitting, remediation, hazardous waste, water, and industrial compliance matters.

Greg previously worked as a consulting environmental engineer, concentrating on permitting, emissions estimation, reporting, modeling, and compliance in energy and industrial sectors. He now counsels clients on facility acquisitions, environmental audits, agency disclosures, enforcement matters, and federal or state cleanup liability. His work extends to carbon capture, solar, wind, hydrogen, and battery projects. He also serves as general counsel to the International Carbon Black Association, advising on regulatory standards, OSHA interpretations, antitrust surveillance, and sponsored research agreements.

Greg L. Johnson has received Band 1 recognition from Chambers USA for environmental law and recognition from Best Lawyers for environmental law and environmental litigation. He has twice been named Best Lawyers’ New Orleans Environmental Law “Lawyer of the Year.” Greg is a former chair of the Louisiana State Bar Association’s Environmental Law Section and frequently speaks on energy and environmental topics. His practice combines technical insight, regulatory experience, practical judgment, and focused guidance for companies managing complex environmental risks.

Law Office Affiliations

• Shareholder, Liskow & Lewis, APLC
• Member, Louisiana Bar Association
• Member, New Orleans Bar Association
• Member, American Bar Association

Licensed State

• Louisiana

Education

• Loyola University New Orleans College of Law
  Juris Doctor (JD)
• University of Texas
  Bachelor of Science (BS)