FAR 52.243-1 CHANGES FIXED PRICE (ALT.1) THIS CONTRACT HAS BEEN MODIFIED IN ACCORDANCE WITH FAR-52.243-1 CHANGES FIXED PRICE. MODIFICATION TWO (02) ADDS THE FOLLOWING CLAUSES TO THIS CONTRACT. PART 1 FAR 52.211-10 COMMENCEMENT, PROSECUTION, AND COMPLETION OF WORK (APR 1984) THE CONTRACTOR SHALL BE REQUIRED TO (A) COMMENCE WORK UNDER THIS CONTRACT WITHIN TEN (10) CALENDAR DAYS AFTER THE DATE THE CONTRACTOR RECEIVES THE NOTICE TO PROCEED, (B) PROSECUTE THE WORK DILIGENTLY, AND (C) COMPLETE THE ENTIRE WORK READY FOR USE NOT LATER THAN FORTY-FIVE (45) DAYS AFTER THE NOTICE TO PROCEED. THE TIME STATED FOR COMPLETION SHALL INCLUDE FINAL CLEANUP OF THE PREMISES. AGAR 452.211-74 PERIOD OF PERFORMANCE (FEB 1988) THE PERIOD OF PERFORMANCE OF THIS CONTRACT IS FROM JUNE 1, 2011 THROUGH JULY 15, 2011. THE CONTRACT TIME IS 45 DAYS. FAR 52.228-13 ALTERNATIVE PAYMENT PROTECTIONS (JUL 2000) (APPLICABLE TO CONTRACTS>$25,000 BUT