From Truman's Library of Congress Thread:
Section 1 (The Regions)
i. The several states of this Republic shall be apportioned among three contiguous, autonomous Regions.
ii. The northern Region shall consist of the states of Connecticut, Illinois, Indiana, Maine, Massachusetts, Michigan, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Wisconsin, and Vermont.
iii. The southern Region shall consist of the states of Alabama, Arkansas, Delaware, Florida, Georgia, Louisiana, Kansas, Kentucky, Maryland, Mississippi, Missouri, North Carolina, Oklahoma, Puerto Rico, South Carolina, Tennessee, Texas, Virginia, West Virginia, and the District of Columbia.
iv. The western Region shall consist of the states of Alaska, Arizona, California, Colorado, Hawaii, Idaho, Iowa, Montana, Minnesota, Nevada, New Mexico, North Dakota, Nebraska, Oregon, South Dakota, Utah, Washington, and Wyoming. (Amended June 2016)
v. Each Region shall have the sole authority to designate its title, and the titles of the officers of its government, such as they will be recognized by the Republic of Atlasia in all official acts and processes.