In 2013 the government implemented significant changes in the country's public university system, intended to improve efficiency by removing duplicated courses of study and eliminating discrepancies in student assessment between the different schools. The previously-independent Kigali institutions KHI, KIST, KIE and SFB were merged with three others from outside the city—the UNR, Nyagatare-based Umutara Polytechnic and Ruhengeri's Higher Institute of Agriculture and Animal Husbandry—creating the consolidated University of Rwanda. It has six constituent colleges, spanning nine campuses, three of which are in Kigali. These are the Gikondo campus, which serves as the university's headquarters and is home to its business and economics programmes, the Nyarugenge campus on the former KIST site, which houses the sciences, architecture and engineering, and the Remera campus which covers medicine, nursing, dentistry and health sciences.