Controlar is the company responsible for performing environmental vehicular inspections in the city of São Paulo, under concession by the City government. Environmental Vehicular Inspection is a healthy and necessary practice in large metropolitan areas, like São Paulo. Established by law, its immediate objective is to improve the quality of the air and living conditions in the city.

Environmental Vehicular Inspection has proven to be an effective means of controlling the emission of pollutants through the exhaust systems of vehicles. Currently, around 50 countries perform environmental vehicular inspections, such as Australia, Canada, the U.S., Finland, Japan, China, Argentina, and Uruguay, as well as all of the European Union. In these countries, the inspection has become a type of guarantee when selling and purchasing pre-owned vehicles.