then on, it became necessary to prepare a Waste Management Plan in order to better understand the problem of collection and disposal of waste and to plan management actions necessary for the smooth progress of the plan. This paper aims to introduce an economic instrument called Theory of Pollution Credit Certificates in the management of municipal solid waste in order to create opportunities to achieve the goal established in the above mentioned policy at lowest possible social costs. This instrument was formulated to give social actors economic stimuli so that they can better manage their solid waste and additionally reduce their organic waste destined to landfills extending their life cycles. From a scenario created for a fictional municipality, it was established that the object of study was the organic waste and an environmental goal to only send up to 30 % of waste to landfill and composting the rest of the waste. Two ways to accomplish this task were studied: one simply fulfilling the proposed/desired goal and another besides fulfilling the goal and at the same time benefiting from economies of scale. The result showed that the use of Pollution Credit Certificates Theory has a better cost-effectiveness for solid waste management because it allows reaching the environmental goal at a lower cost to society.