TCA 5-14-110 - Emergency purchases:
(a) The county purchasing agent may authorize any department or agency of the county government to purchase in the open market, without filing requisition or estimate, any supplies, materials or equipment for immediate delivery in actual emergencies arising from unforeseen causes, including delays by contractors, delays in transportation, and unanticipated volume of work; but such emergencies shall not include conditions arising from neglect or indifference in anticipating normal needs.