The Ozone Transport Commission (OTC) is a multi-state organization founded in 1991 and created under the Clean Air Act. It is responsible for advising EPA on air pollution transport issues and for developing and implementing regional solutions to the ground-level ozone problem in the Northeast and Mid-Atlantic regions, collectively called the Ozone Transport Region (OTR). OTC has no regulatory authority, but assists its members in developing model regulations for implementation at the state level. OTC also manages a regional planning organization MANE-VU (Mid-Atlantic Northeast Visibility Union), which is charged with regional multi-pollutant air quality planning. In January 2020, operations of OTC were placed under new management by the Northeast States for Coordinated Air Use Management