fa Mathematical Modeling and Applications of OR Mathematical Modeling and Applications of OR پژوهشی Original <em>A new integer program is presented to model an independent resources assignment problem with resource shortages in the context of municipal fire service. When shortage in resources exists, a critical task for fire department&#39;s administrator in a city is to assign the available resources to the fire stations such that the effect of the shortage to cover (in providing service, in extinguishing fire and so on) is minimized. To solve the problem, we propose a polynomial time greedy algorithm. </em> Resource assignment problem, Integer programming, Fire stations, Shortage, Greedy algorithm 77 83 http://iors.ir/journal/browse.php?a_code=A-10-1422-5&slc_lang=fa&sid=1 Reza Ghanbari رضا قنبری rghanbari@um.ac.ir 1111111111 1111111111 Yes Ferdowsi University of Mashhad, Mashhad دانشگاه فردوسی مشهد Effat Sadat Alavi عفت السادات علوی rghanbari@um.ac.ir 1111111111 1111111111 No Ferdowsi University of Mashhad, Mashhad دانشگاه فردوسی مشهد