Ryan K. Lighty represents and advises domestic and international businesses regarding litigation, transactions, and regulatory matters related to the ownership and use of nuclear reactors and nuclear materials. He serves as co-leader of the firm’s Nuclear Working Group and regularly guides clients on complex issues associated with US Nuclear Regulatory Commission (NRC) licensing, adjudication, and regulatory compliance. His practice is focused primarily on new reactor deployments, operating license renewals, and regulatory consents for transactions involving nuclear assets. In the last decade, Ryan has represented and defended applicants in more contested adjudicatory proceedings before the NRC than any other lawyer in the United States.
Ryan’s experience with the National Environmental Policy Act (NEPA) and working knowledge of NRC technical requirements allows him to assist clients with restarting or extending the operating life of existing nuclear reactors. He serves on the Nuclear Energy Institute’s (NEI) License Renewal Environmental Task Force and has advised utilities and independent power producers on more than half of the subsequent license renewal (SLR) applications filed with the NRC to date.
Ryan also serves on NEI’s Siting Task Force for new reactor projects. He regularly counsels a range of clients (including investors, reactor technology vendors, and project sponsors) on NRC requirements associated with construction permits, operating licenses, combined licenses (COLs), early site permits (ESPs), design certifications (DCs), and other regulatory pathways for deployment of small modular reactors (SMRs), advanced reactors, micro-reactors, and traditional large light-water reactors. He also provides strategic advice to clients regarding the use of carbon-free nuclear power for nontraditional uses, including production of hydrogen, medical isotopes, industrial process heat, and power for data centers and cryptocurrency mining operations.
Before joining Morgan Lewis, Ryan was an attorney in the NRC’s Office of the General Counsel and served as acting regional counsel in the agency’s Region III office.
Listed, The Best Lawyers in America, Ones to Watch, Energy Law, Washington, DC (2021–2025)
Rising Star, Washington, DC Super Lawyers (2018–2022)
Member, Nuclear Energy Institute, License Renewal Environmental Task Force
Member, Law Firm of the Year, Energy/Projects: Power (including Renewables), Chambers USA (2018)
Member, Practice Group of the Year, Energy, Law360 (2016, 2019)
Member, Energy Law Firm of the Year, US News & World Report/Best Lawyers (2015)
Executive Managing Editor, Indiana International & Comparative Law Review (2010–2011)
Member, American Bar Association (ABA)
Member, ABA Infrastructure and Regulated Industries Section (IRIS)
Member, ABA-IRIS Nuclear Energy Committee
Member, ABA Section of Energy, Environment, and Resources (SEER)
Vice Chair, ABA-SEER Nuclear Law Committee
Member, Phi Delta Phi International Legal Honor Society