Civilian employees of the Defense Department won’t be subject to mandatory use of government-issued credit cards while on official travel until May 1, under a last-minute agreement between DoD and the General Services Administration. That’s a two-month delay from the March 1 date after which federal travelers must use the cards for all expenses except for a few limited categories for which charge cards typically aren’t accepted. GSA says it will not allow further delays but agreed to this one because Defense components reported that they hadn’t received the needed guidance. The law generally requiring use of the credit cards passed in 1998.