Notwithstanding any other provision of this chapter, the director may make or authorize others to make emergency procurements if there exists a threat to public health, welfare or safety or if a situation exists which makes compliance with section 41-2533, 41-2534, 41-2578, 41-2579 or 41-2581 impracticable, unnecessary or contrary to the public interest as defined in rules adopted by the director, except that such emergency procurements shall be made with such competition as is practicable under the circumstances. A written determination of the basis for the emergency and for the selection of the particular contractor shall be included in the contract file.
A.R.S. § 41-2537