THE PURPOSE OF AMENDMENT#5 TO SOLICITATION#FA568218R0002 IS TO CHANGE: 1) THE PERFORMANCE WORK STATEMENT (PWS) DATE FROM 18 OCTOBER 2017 TO 06 NOVEMBER 2017 ON: CLIN 0001, CLIN 0002, CLIN 1002, CLIN 2002 AND LIST OF ATTACHMENTS/EXHIBITS; 2) THE DATE OF ATTACHMENT A, B, C, D, E AND F TO THE PWS FROM 18 OCTOBER 2017 TO 06 NOVEMBER 2017. ALL OTHER TERMS AND CONDITIONS REMAIN UNCHANGED.