IIMC is composed of 11 regions, and each region is represented by two Region Directors.
IIMC's leadership is a 26-member Board of Directors consisting of 22 Region Directors and four Executive Committee members. Region Directors' term lengths are three years, and Executive Committee members each serve for one year with term beginning the last day of the Annual Conference.
Region I - Connecticut, Maine, Massachusetts, New Hampshire, New York, Rhode Island, Vermont
Region II - Delaware, District of Columbia, Maryland, New Jersey, Pennsylvania, Virginia, West Virginia
Region III - Alabama, Florida, Georgia, North Carolina, South Carolina
Region IV - Arkansas, Louisiana, Mississippi, Oklahoma, Texas
Region V - Indiana, Kentucky, Michigan, Ohio, Tennessee
Region VIII - Arizona, Colorado, Idaho, Montana, Nebraska, Nevada, New Mexico, North Dakota, South Dakota, Utah, Wyoming
Region IX - Alaska, California, Hawaii, Oregon, Washington
Region X - Canada - Alberta, British Columbia, Manitoba, New Brunswick, Newfoundland and Labrador, Northwest Territories, Nova Scotia, Nunavut Territory, Ontario, Prince Edward Island, Quebec, Saskatchewan, Yukon Territory
Region XI - Outside North America - Australia, Belgium, Bulgaria, Israel, The Netherlands, Nepal, New Zealand, South Africa, United Kingdom (Bermuda, England, Scotland and Wales)