The article aims to present the significance of low-emission (green) economy in Pułtusk Municipality (Gmina Pułtusk). The main source of air pollution in the municipality is emission resulting from the process of fossil fuel combustion to generate heat. The Low-Emission Economy Plan (LEEP) in Pułtusk is a strategic document describing the course of action aimed at achieving the targets of the climate and energy package. Action planned in order to implement the objectives set in the Low-Emission Economy Plan in Pułtusk Municipality will be financed by Pułtusk’s own budgetary resources and outside funds.