260.279.  Preference and bonus points for contracts for the removal or clean up of waste tires, when. — In letting contracts for the performance of any job or service for the removal or clean up of scrap tires under this chapter, the department of natural resources shall, in addition to the requirements of sections 34.073 and 34.076 and any other points awarded during the evaluation process, give to any vendor that meets one or more of the following factors a five percent preference and ten bonus points for each factor met:

  (1)  The bid is submitted by a vendor that has resided or maintained its headquarters or principal place of business in Missouri continuously for the two years immediately preceding the date on which the bid is submitted;

  (2)  The bid is submitted by a nonresident corporation vendor that has an affiliate or subsidiary that employs at least twenty state residents and has maintained its headquarters or principal place of business in Missouri continuously for the two years immediately preceding the date on which the bid is submitted;

  (3)  The bid is submitted by a vendor that resides or maintains its headquarters or principal place of business in Missouri and, for the purposes of completing the bid project and continuously over the entire term of the project, an average of at least seventy-five percent of such vendor's employees are Missouri residents who have resided in the state continuously for at least two years immediately preceding the date on which the bid is submitted.  Such vendor must certify the residency requirements of this subdivision and submit a written claim for preference at the time the bid is submitted;

  (4)  The bid is submitted by a nonresident vendor that has an affiliate or subsidiary that employs at least twenty state residents and has maintained its headquarters or principal place of business in Missouri and, for the purposes of completing the bid project and continuously over the entire term of the project, an average of at least seventy-five percent of such vendor's employees are Missouri residents who have resided in the state continuously for at least two years immediately preceding the date on which the bid is submitted.  Such vendor must certify the residency requirements of this section and submit a written claim for preference at the time the bid is submitted;

  (5)  The bid is submitted by any vendor that provides written certification that the end use of the tires collected during the project will be for fuel purposes or for the manufacture of a usable good or product.  For the purposes of this section, the landfilling of scrap tires, scrap tire chips, or scrap tire shreds in any manner, including landfill cover, shall not permit the vendor a preference.