A legal instrument which, consistent with 31 U.S.C. 6305, is used to enter into the same kind of relationship as a grant (see definition of ``grant,'' in Sec. 37.1295), except that substantial involvement is expected between the Department of Defense and the recipient when carrying out the activity contemplated by the cooperative agreement. The term does not include ``cooperative research and development agreements'' as defined in 15 U.S.C. 3710a.