The provisions of this chapter establish procurement requirements for all political subdivisions of the state of Idaho. The public works construction procurement process set forth in this chapter shall function in a complementary manner with the public works contractors license board and the procedures which that board administers. Any general procurement procedures set forth in this chapter shall be supplemented by the provisions of any specific statute pertaining to the awarding of any contract for the purchase or acquisition of any service, commodity or thing made expressly applicable to any particular political subdivision or by means of any additional administrative process that otherwise establishes additional express requirements. No provisions of this chapter shall be deemed to preclude the use of procurement procedures otherwise authorized by law.