P 061516Z DEC 17 FM DFAS CLEVELAND OH//JFLG// TO AIG 4676// AIG 4678// AIG 4730// BT UNCLAS MSGID/GENADMIN/DFAS-CL CODE JFLG// SUBJ/"WHAT IF" SEPARATION SYSTEM (JPAM)// MILITARY PAY ADVISORY 39/17// POC/FIELD SERVICES/MPO-CL CODE JFLG/ DSN 580-5886/ COMMERCIAL (216) 522-5886// RMKS/1. THE "WHAT IF" SEPARATION SYSTEM (JPAM) WILL BE UNAVAILABLE FROM 19 DECEMBER 2017 THRU 27 DECEMBER 2017, TO UPDATE 2017 TAX TABLE AND INPUT 2018 MASS RATE CHANGES. 2. ON 28 DECEMBER 2017, THE "WHAT IF" SEPARATION SYSTEM WILL BE AVAILABLE TO CALCULATE THE SEPARATION PAYMENT FOR SEPARATING MEMBERS.//