- 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
- International Chapter - Belize, Costa Rica, Cuba, Dominican Republic, El Salvador, Guatemala, Haiti, Honduras, Jamaica, Mexico, Nicaragua, Panama, Santa Lucia, and all countries, territories, and provinces located within the continents of Africa, Antartica, Asia, Australia, Eurpoe, and South America
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