- Central Chapter - Colorado, Iowa, Kansas, Manitoba, Missouri, Nebraska, North Dakota, Saskatchewan, South Dakota, & Wyoming
- Great Lakes Chapter - Illinois, Indiana, Kentucky, Michigan, Minnesota, Ohio, Ontario, Quebec, & Wisconsin
- Mid-Atlantic Chapter - District of Columbia, Maryland, North Carolina, South Carolina, Virginia, & West Virginia
- Northeast Chapter - Connecticut, Delaware, Maine, the Maritime Provinces, Massachusetts, Newfoundland, New Brunswick, New Hampshire, New Jersey, New York, Nova Scotia, Pennsylvania, Rhode Island, & Vermont
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- Northwest Chapter - Alaska, Alberta, British Columbia, Idaho, Montana, Oregon, & Washington
- South Central Chapter - Arkansas, Oklahoma, & Texas
- Southern Chapter - Alabama, Florida, Georgia, Louisiana, Mississippi, Puerto Rico, Tennessee, & The Virgin Islands
- Southwest Chapter - Arizona, California, Guam, Hawaii, Nevada, New Mexico, & Utah
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