THE PURPOSE OF THIS AMENDMENT IS TO 1. ADD FAR 52.232-18. 2. UPDATE THE PWS 3. AMENDED SOLICITATION : CLINS DESCRIPTION - CLIN0003AB, CLIN1003AB, CLIN2003AB, CLIN3003AB, CLIN4003AB DESCRIPTION HAVE BEEN CHANGED FROM 'EXCEPT ALPHA SITE' TO 'ALPHA SITE.' 4. AMEND THE ADDENDUM TO FAR 52.212.1 INSTRUCTION TO OFFERORS AND ADDENDUM TO FAR 52.212.2 EVALUATION. 5. ADDED ATTACHMENT 7 FOR Q & A.