As part of its 10-year plan, Delivering for America, the United States Postal Service is focused on building a more stable and empowered workforce. Presently, it is seeking rural mail carriers to join its team. Among post offices that will host job fairs from 10 a.m. to 1 p.m. EST Wednesday, March 19, is the Elizabethton Post Office, 901 W. Elk Ave. Postal Service personnel will be on hand to assist with benefits, qualifications and application …