Handbook EL-312 - Employment and Placement - Contents 373 Review of Rating — Time Limitation NTAC cannot process requests received after 6 months, as answer sheets are destroyed 6 months from the notice of ..." /> Handbook EL-312 - Employment and Placement - Contents 373 Review of Rating — Time Limitation NTAC cannot process requests received after 6 months, as answer sheets are destroyed 6 months from the notice of ..." />