What volume and other limitations pertain to noncompetitive sales associated with public works projects?

BLM may sell mineral materials not exceeding 400,000 cubic yards (or weight equivalent), at not less than fair market value, without advertising or calling for bids if: (a) BLM determines the sale to be in the public interest; and (b) The materials will be used in connection with an urgent public works improvement program on behalf of a Federal, State, or local governmental agency, and time does not permit advertising for a competitive sale.