Motor fuel excise taxes in Arkansas support state infrastructure projects by providing dedicated revenue streams for the maintenance and development of state highways and roads. The excise taxes imposed per gallon of gasoline and diesel fuel sold are directly allocated to funding transportation infrastructure, ensuring that roads are well-maintained, expanded, and improved. This consistent funding helps manage the wear and tear on public roads, reduces congestion, and enhances overall transportation efficiency. By earmarking these taxes for infrastructure, Arkansas ensures that the state’s transportation network remains robust and capable of supporting economic growth and public mobility.