washington held membership in several professional organizations, including kappa delta phi, phi delta kappa, and alpha kappa mu honorary society. he served on boards and advisory councils in and out of the state, including the board of directors of mississippi power and light company, entergy corporation, blue cross blue shield of mississippi, national association for equal opportunity in higher education and the national commission for cooperative education. he has also served as a member of the liaison committee on medical education (lcme), the advisory council of the national urban league's black executive exchange program, the commission on colleges of the southern association of colleges and schools, the president's council of the state university presidents, and the u.s. president's advisory council on historically black colleges and universities. he was a past president of the mississippi teachers association and held membership in the mississippi association of educators and the national education association.