Section 1836.570 - NASA solicitation provisions and contract clause(a) The contracting officer shall insert the provision at 1852.236-71, Additive or Deductive Items, in invitations for bids for construction when it is desired to add or deduct bid items to meet available funding.(b) The contracting officer shall insert the provision at 1852.236-72, Bids with Unit Prices, in invitations for bids for construction when the invitation contemplates unit prices of items.(c) The contracting officer shall insert the clause at 1852.236-73, Hurricane Plan, in solicitations and contracts for construction at sites that experience hurricanes.(d) The contracting officer shall insert the provision at 1852.236-74, Magnitude of Requirement, in solicitations for construction. Insert the appropriate estimated dollar range in accordance with FAR 36.204.