The relevance of the development of a new direction of Belarusian-Russian economic cooperation in the field of using natural gas as a motor fuel has been determined. The state of the gas motor fuel (GMF) market in Belarus is considered; based on the results of the survey, problems and main limitations in this area are identified. The feasibility of developing state strategic documents (concepts, programs) in order to stimulate the use of gas fuel in Belarus and in the future to form a unified gas fuel market of the Union State is shown. The main provisions of the promising Belarusian model for the formation of the gas motor fuel market are substantiated, including: the principle of stages, starting with the implementation of the competitive advantages of Belarus in this area and ensuring the interconnection of all structural elements of the market; sectoral approach to the use of gas turbine engines in individual vehicle segments; creating conditions for positioning Belarus as an incubator and technical and economic testing ground in the region for the development and implementation of new technologies in the use of hydrocarbons; implementation of various pilot projects, demonstration zones, feasibility testing sites as growth points in this area; launching mechanisms for market self-development of the gas transportation sector at the level of owners of personal vehicles; measures to form a unified market for gas motor fuel of the Republic of Belarus and the Russian Federation. A conclusion is drawn about the potential environmental and economic effects of the use of natural gas as a motor fuel in Belarus in certain transport segments where the use of electric transport is technologically impossible or economically ineffective.