CARRIS mission is the rendering service of public transport for urban surface vehicles, oriented by Sustainability criteria, contributing to a development that attends present needs without compromising the ability of future generations to meet their own needs. CARRIS assumes, conscientiously, its responsability as an economical and social agent that acts on urban mobility domain, contributing to the development and sustentability of Lisbon and its metropolitan area, adjusting its activity to the market needs, optimizing resources use in order to increase the company's efficiency and to improve their service quality.