(c)(1) When exact destinations are not known and it is impracticable to establish tentative or general delivery places for the purpose of evaluating transportation costs, the contracting officer shall insert in solicitations the provision at 52.247-50, No Evaluation of Transportation Costs.

(2) The solicitation shall also state that the transportation costs of subsequent shipments must be controlled (see, for example, the clause at 52.247-61, F.o.b. Origin—Minimum Size of Shipments).