Diana's experience includes counseling and litigation involving the National Environmental Policy Act (NEPA), Endangered Species Act (ESA), CWA, Clean Air Act (CAA), Resource Conservation and Recovery Act (RCRA), state voluntary cleanup programs, and many other state and federal laws and regulations. Diana has significant experience in the permitting of new power-generating stations and modifications to existing facilities. She also has significant experience with litigation and negotiations relating to stormwater permitting and successfully defended Baltimore City's municipal separate storm sewer system (MS4) permit in the circuit court and before the Maryland Court of Appeals.