NABS clubs are divided into four regions within the United States, the western region, the midwest region, the southern region, and the northeastern region. Each region is represented by a regional representative; the regional rep is the liaison between the club presidents and the NABS Executive Board.

• Western Region: Arizona, California, Colorado, Idaho, Oregon, Montana, New Mexico, Nevada, Utah, Washington

• Midwest Region: Illinois, Iowa, Indiana, Kansas, Nebraska, Michigan, Minnesota, Missouri, Nebraska, North & South Dakota, Ohio, Wisconsin

• Southern Region: Alabama, Arkansas, Florida, Georgia, Louisiana, Mississippi, North & South Carolina, Oklahoma, Tennessee, Texas

• Northeastern Region: Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, West Virginia, Vermont, Virginia, Washington DC