| Greater Mid-Atlantic Chapter (GMA) |
covers 6 states: Delaware, Maryland, Pennsylvania, Virginia, Washington (DC), West Virginia |
| Midwest Chapter (MW) |
covers 13 states: Illinois, Indiana, Iowa, Kansas, Kentucky, Michigan, Minnesota, Missouri, Nebraska, North Dakota, Ohio, South Dakota, Wisconsin |
| Northeast Chapter (NE) |
covers 8 states: Connecticut, Maine, Massachusetts, New Hampshire, New Jersey, New York, Rhode Island, Vermont |
| Northern California Chapter (NCA) |
covers Northern part of California: north of San Luis Obisbo/Bakersfield |
| Southern California Chapter (SCA) |
covers Southern part of California: south of San Luis Obisbo/Bakersfield |
| Southeast Chapter (SE) |
covers 7 states: Alabama, Florida, Georgia, Mississippi, North Carolina, South Carolina, Tennessee |
| Southwest Chapter (SW) |
covers 9 states: Arizona, Arkansas, Colorado, Louisiana, Nevada, New Mexico, Oklahoma, Texas, Utah |
| All Other U.S. States (OUS) |
covers 7 states: Alaska, Hawaii, Idaho, Montana, Oregon, Washington (State), Wyoming |
| Non-US Areas (NUS) |
covers oversea areas: Guam, Canada, China, Hong Kong, Singapore, Taiwan |
