48 CFR § 19.807 - Estimating the fair market price.
(a) The contracting officer shall estimate the fair market price of the work to be performed by the 8(a) contractor.
(b) In estimating the fair market price for an acquisition other than those covered in paragraph (c) of this section, the contracting officer shall use cost or price analysis and consider commercial prices for similar products and services, available in-house cost estimates, data (including certified cost or pricing data) submitted by the SBA or the 8(a) contractor, and data obtained from any other Government agency.
(c) In estimating a fair market price for a repeat purchase, the contracting officer shall consider recent award prices for the same items or work if there is comparability in quantities, conditions, terms, and performance times. The estimated price should be adjusted to reflect differences in specifications, plans, transportation costs, packaging and packing costs, and other circumstances. Price indices may be used as guides to determine the changes in labor and material costs. Comparison of commercial prices for similar items may also be used.