A. By Purchasing Officer: In case of an apparent emergency which requires the immediate purchase of supplies or contractual services, the mayor shall be empowered to grant written authorization to the purchasing officer to secure by purchase in the open market at the lowest attainable price, any supplies or contractual services, regardless of the amount of the expenditures.
B. By Department Head: In case of an actual emergency occurring during normal office hours, the head of any department of the city may, with the consent of the purchasing officer and the approval of the mayor, purchase directly any supplies or contractual services where the immediate procurement is essential to prevent delays in the work of such department which may vitally affect the life, health or convenience of the citizens. In the case of an actual emergency occurring outside regular office hours, the head of any using agency may, with the consent of the mayor or the purchasing officer, purchase directly any supplies or contractual services whose immediate procurement is essential to prevent delays in the work of such department which vitally affects the life, health or convenience of the citizens; provided, that he shall exercise great care to ensure that the supplies or contractual services are procured at a reasonable cost. The purchasing officer may further make purchases in the event of an emergency as provided in 61 Oklahoma Statutes section 130. (1991 Code § 1-2000)