Tahuna (North Sulawesi) and Natuna (Riau Islands) are included in the 3TP (underdeveloped, remote, outermost, and border) areas and use sea transportation to support for their economic activities. High inflation and price disparities are economic problems in this area. “Tol Laut” is government initiative designed to distribute essential basic goods, through a subsidized sea transportation system. These routes connect the economic hub in Java with the 3TP areas. The analysis process uses a mix method, quantitative and qualitative analysis. Port Assessment analysis using weighted scoring, Supply Demand Analysis using index consumption demand, and Regulation Review. To evaluate the implementation of Tol Laut, it focuses on aspects of port location, connectivity, port facilities, potential feeder ships, production performance, hinterland, as well as administration and commerce. Tol Laut in Tahuna can fulfill the supply-demand of essential basic goods significant quantities around 30% from local demand and is supported by the regional government’s commitment, allowing Tol Laut to reduce price disparities. On the contrary, Tol Laut in Natuna can only the supply 16%, resulting inability to control price disparities effectively. There is an urge to optimize and coordinate regarding Tol Laut by involving agencies for the successful enforcement of regulations.