Hoy No Circula

This article relies on references to primary sources. Please add references to secondary or tertiary sources. (February 2010) Hoy No Circula (literally in Spanish: "today it [your car] does not circulate", though known abroad academically as One Day Without a Car) is the name of an environmental program intended to improve the air quality of Mexico City. A similar coordinated program operates within the State of México, which surrounds Mexico City on three sides. Mexico City and Mexico State have reciprocal agreements with surrounding states that also have emissions testing programs to permit their residents to travel freely without restriction. The following restriction does not apply to vehicles that have other than 0 or 00 sticker (permits driving every day without restriction) and are plated in Mexico City, Mexico State and surrounding states that have an agreement with Mexico City and Mexico State. It is based on the last digit of their license plate. There are other r... (see more)