|NATCA Central Region|
Unionized air traffic controllers in Iowa, Kansas, Missouri and Nebraska.
|NATCA Northwest Mountain|
Unionized air traffic controllers in Colorado, Idaho, Montana, Oregon, Utah, Washington, and Wyoming.
|NATCA Southern Region|
Air traffic controllers in Alabama, Florida, Georgia, Kentucky, Mississippi, North Carolina, Puerto Rico, South Carolina, Tennessee, and Virgin Islands.
|NATCA Southwest Region|
Unionized air traffic controllers in Arkansas, Louisiana, New Mexico, Oklahoma, and Texas.
|National Air Traffic Controllers Association (NATCA)|
Certified as the sole bargaining unit for air traffic controllers in 1987. The collective bargaining unit for the 14,000-plus air traffic controllers serving the Federal Aviation Administration, Department of Defense and private sector.