(a) The contracting officer shall insert the clause at 552.238-77, Definition (Federal Supply Schedules), in solicitations and contracts for- 
  (b) The contracting officer shall insert the clause at 552.238-78, Scope of Contract (Eligible Ordering Activities), in solicitations and contracts for- 
  (c) The contracting officer shall insert the clause at 552.238-79, Use of Federal Supply Schedule Contracts by Certain Entities-Cooperative Purchasing, in solicitations and contracts for-