0001144204-10-000135 8-A12B 1 20100104 20100104 ATS CORP 0001325460 8742 113747950 DE 1231 8-A12B 34 001-34595 10502270 7925 JONES BRANCH DRIVE MCLEAN VA 22102 571-766-2400 7925 JONES BRANCH DRIVE MCLEAN VA 22102 Federal Services Acquisition CORP 20050429 8-A12B 1 v170340_8a12b.htm