cial ▁Or b ital ▁Transport ation ▁Services ▁( C OT S ) ▁and ▁Com mer cial ▁C rew ▁Development ▁( CC Dev ). ▁They ▁are ▁not ▁subject ▁to ▁normal ▁Federal ▁Ac quisition ▁Reg ulations . ▁ ▁Besides ▁these ▁two ▁initi atives ▁NASA ▁has ▁concluded ▁five ▁other ▁agre ements ▁in ▁the ▁Com mer cial ▁Space ▁Transport ation ▁Cap abilities ▁( C ST C ). ▁ ▁Five ▁agre ements ▁were ▁signed ▁between ▁January ▁ 2 0 0 7 ▁and ▁June ▁ 2 0 0 7 : ▁ ▁Planet space ▁for ▁their ▁Silver ▁D art ▁lif ting ▁body ▁launched ▁by ▁Canadian ▁Ar row ▁ro cket ▁ ▁t Space ▁for ▁their ▁C rew ▁Transfer ▁Ve h icle ▁( C XV ) ▁caps ule ▁launched ▁from ▁the ▁now ▁def unct ▁Air Launch ▁L LC ▁system ▁ ▁Space hab ▁for ▁their ▁AR CT US ▁cargo ▁delivery ▁vehicle ▁for ▁the ▁I SS ▁that ▁is ▁based ▁on ▁existing ▁US ▁hardware ▁ ▁Space Dev ▁for ▁their ▁Dream ▁Ch aser ▁lif ting ▁body ▁space plane ▁ ▁Const ell ation ▁Services ▁International ▁for ▁their ▁cargo ▁delivery ▁vehicle ▁for ▁the ▁I SS ▁that ▁is ▁based ▁on ▁existing ▁Russian ▁hardware ▁ ▁All ▁three ▁of ▁the ▁Space ▁Act ▁Ag re ement ▁initi atives , ▁C OT S , ▁C ST C ▁and ▁CC Dev ▁are ▁for ▁development , ▁engineering ▁and ▁testing ▁of ▁design ▁concepts , ▁but ▁C ST C ▁is ▁different ▁from ▁the ▁other ▁two ▁initi atives ▁in ▁no ▁providing ▁any ▁fund ing . ▁C ST C ▁agre ements ▁are ▁only ▁instruments ▁comm itting ▁NASA ▁to ▁increase