TriState Planning & Engineering, P.C. is a consulting firm specializing in the planning and design of aviation facilities. Our staff is committed to personal, professional services and working with clients from a projects initial concept through its completion. The principals of TSPE, Shavawn M. Lockhart, P.E. and Thomas H. Chastain, P.E, have dedicated their careers to the aviation industry. Combined they have over 45 years of experience in the planning and design of aviation facilities of all sizes.