Kathryn (Katie) L. Lannon | Washington, D.C. | Hogan Lovells

Kathryn (Katie) L. Lannon

Counsel Global Regulatory

Lannon Kathryn

Kathryn (Katie) L. Lannon
Lannon Kathryn
  • Overview
  • Experience
  • Credentials
  • Insights and events

Katie Lannon counsels and advocates for clients on environmental and safety matters, with a focus on the transportation industry.

Katie represents corporations and trade associations before various federal courts, departments, and administrative agencies, including the U.S. Environmental Protection Agency (EPA), the National Highway Traffic Safety Administration, the Federal Motor Carrier Safety Administration, the Pipeline and Hazardous Materials Safety Administration, the Surface Transportation Board, and the Federal Railroad Administration, as well as the California Air Resources Board (CARB).

Katie regularly counsels clients on compliance with new and existing environmental regulations, including Clean Air Act mobile source regulations, Federal Motor Vehicle Safety Standards, and Hazardous Materials Regulations. Katie works closely with clients to submit comments to agency proposed rulemakings and draft guidance on issues critical to their business. Katie also works actively with clients in responding to agency information requests, including asserting and substantiating business confidentiality claims, as well as submitting Freedom of Information Act and other requests for release of agency information. She has filed and intervened in lawsuits on behalf of industry clients challenging agency actions in federal district and appellate courts under the Clean Air Act, Clean Water Act, Endangered Species Act, Administrative Procedure Act, and Freedom of Information Act.

Katie served as an adjunct professor with the Journal of Energy and Environmental Law at The George Washington University Law School for five years. Prior to joining our legal practice, Katie served as a judicial law clerk to the Honorable Emily C. Hewitt, Chief Judge of the U.S. Court of Federal Claims. Prior to attending law school, Katie worked as a wilderness program director and outdoor instructor.

Representative experience

Providing ongoing regulatory compliance advice to transportation sector clients.
Negotiating with EPA and DOJ consent decrees and implementing mitigation plans for alleged Clean Air Act violations.
Assisting manufacturers of passenger vehicles and heavy-duty and nonroad engines in obtaining certificates of conformity from the EPA and executive orders from CARB.
Responding to EPA and CARB information requests under the Clean Air Act.
Intervening on behalf of clients to protect their confidential business information in litigation between the EPA and competitors.


  • J.D., The George Washington University Law School, with highest honors, Order of the Coif, 2009
  • B.S., Davidson College, 1999
Bar admissions and qualifications
  • District of Columbia
  • Virginia
  • North Carolina
Court admissions
  • U.S. Court of Appeals, District of Columbia Circuit
  • U.S. Court of Federal Claims
  • U.S. District Court, District of Columbia
  • American Bar Association (Section of Environment, Energy, and Resources)
  • DC Bar Association (Environment, Energy, and Natural Resources Section)
  • Women's Council on Energy and the Environment (WCEE)


Transport: Rail and Road - Litigation and Regulation, Rising Star

Legal 500 US

Transport: Rail and Road - Litigation and Regulation, Recommended

Legal 500 US