Not optional...although I'm willing to bet a lot of commands aren't following the guidance, since...
5. EFFECTIVE IMMEDIATELY, ITEMPO REPORTING COMPLIANCE SCORECARDS WILL BE SENT TO EACH BUDGET SUBMITTING OFFICE. NAVY PERSONNEL COMMAND (NPC) WILL MONITOR AND REPORT COMPLIANCE MONTHLY. AN ITEMPO WORKING GROUP HAS BEEN ESTABLISHED TO CONDUCT A BOTTOM UP REVIEW OF THE NAVY ITEMPO POLICIES AND ITEMPO REPORTING SYSTEM PROGRAM AND PROCEDURES WITH THE OBJECTIVE OF RECOMMENDING FUTURE IMPLEMENTATION AND ACTIONS.
http://www.public.navy.mil/bupers-npc/reference/messages/Documents/NAVADMINS/NAV2012/NAV12335.txt
