Welcome to the web home of the Tappan Zee Section of the American Institute of Chemical Engineers. We are based in the lower Hudson Valley of New York State. We maintain ties to other area societies, including the AIChE sections in neighboring areas, the American Chemical Society’s Westchester chapter, and the Hudson Valley Council of Technical Societies. If you are a chemical engineer in our area, we would welcome your participation in our section. We generally hold monthly meetings, often jointly with other groups. Please contact us for information, or monitor this site!