TFM: An annuitant is a retired federal employee or his/her survivor who is receiving payments from the Office of Personnel Management; a retired railroad employee, his/her spouse, or his/her survivor who is receiving payments from the Railroad Retirement Board; or a retired military service person, his/her spouse or his/her survivor who is receiving payments from a military service.

Green Book: An annuitant is a retired federal employee or their survivor who is receiving payments from the Office of Personnel Management; a retired railroad employee, their spouse, or their survivor who is receiving payments from the Railroad Retirement Board; a retired military service person, their spouse or their survivor who is receiving payments from a military service.