Gregory R. Tan’s practice focuses on litigation and counseling for clients in a variety of industries on complex environmental enforcement and regulatory matters. Greg represents clients in environmental enforcement actions brought by federal, state, and local agencies and helps clients navigate regulatory requirements, manage environmental risk, and obtain permits and approvals necessary to move forward with development projects, real estate transactions, and day-to-day business operations. His clients include energy companies, developers, railroads, retailers, and trade associations.

Greg has over 25 years of experience handling environmental enforcement matters both as a former agency enforcement attorney and on behalf of his clients in private practice. Greg has litigated and settled a wide variety of civil, criminal, and administrative enforcement actions and private party actions under the Clean Water Act (CWA), Clean Air Act (CAA), Resource Conservation and Recovery Act (RCRA), Comprehensive Environmental Response, Compensation and Liability Act (CERCLA), Emergency Planning and Community Right to Know Act (EPCRA), and other federal, state, and local laws.

Greg counsels clients on regulatory compliance arising under state and federal environmental statutes and rules, and local zoning and development codes. Greg also advises developers, investors, and lenders on the environmental aspects of real estate transactions, including environmental due diligence and negotiating environmental terms in deal documents.