Provision must be made for suppliers to inspect the construction site. Also, suppliers must be given the opportunity to examine data available to the Postal Service that may provide information affecting performance of the work, such as boring samples, and original boring logs. This information should be assembled in one place and be made available to all offerors in the same manner. When feasible, a record should be kept of the identity and affiliation of all offerors’ representatives inspecting the site or examining the data.