NOACA is the municipal planning organization for the Greater Cleveland area, including Lorain, Medina, Cuyahoga, Geauga, and Lake counties.

NOACA addresses the transportation, air quality, and water quality needs of Cuyahoga, Geauga, Lake, Lorain and Medina counties. The agency and its partners cooperatively develop and implement plans to ensure that travel throughout the region is safe, cost-effective and environmentally sound.

NOACA has also been designated as an Areawide Water Quality Management Agency by the Governor of Ohio under section 208 of the federal Clean Water Act to perform areawide planning.