Lisa Maragnano, executive director of the Chattanooga Area Regional Transportation Authority (CARTA), announced she will be taking early retirement later this year after more than a decade with the public transportation system. Maragnano joined CARTA as its assistance executive director in 2011 and was promoted to executive director in 2013. Prior to that, she was a general manager with Veolia Transportation for six years. Maragnano holds a bachelor’s degree in political science, history, and business from Bridgewater State University. CARTA Chief Operating Officer Jeff Smith will serve as interim head of CARTA after Maragnano steps down until her replacement can be found.