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Most of waste cooking oil (WCO) in Semarang is still disposed in landfill since there is inadequate number of facility to collect those wastes. There are only three collection centers of WCO identified in Semarang. The alternative to sell WCO is also not the best option as the amount of WCO generated from household is less than culinary enterprise. Thus, having a collection channel that can thoroughly cover all the supply points of WCO from household in Semarang is a necessity. This research is going to design a collection channel in order to provide facilities so the waste can be properly managed. The research determines the number, location and capacity of each collection center. The number, location, and capacity of collection centers are determined using Maximal Covering Location Problem. The finding shows that to facilitate all the potential supply of WCO in 1 km mileage, 146 collection centers.