48 C.F.R. § 36.520
36.520 Contracting by negotiation.
The contracting officer shall insert in solicitations for construction the provision at 52.236-28, Preparation of Offers—Construction, when contracting by negotiation.
The contracting officer shall insert in solicitations for construction the provision at 52.236-28, Preparation of Offers—Construction, when contracting by negotiation.