Zone A
Alabama, American Samoa, California, Florida, Georgia, Guam, Hawaii, Louisiana, Mississippi, Puerto Rico, Saipan, South Carolina, Texas, U.S. Virgin Islands
Zone B
Arizona, Arkansas, Delaware, Illinois, Indiana, Kansas, Kentucky, Maryland, Missouri, Nebraska, New Jersey, New Mexico, Nevada, North Carolina, Ohio, Oklahoma, Pennsylvania, Tennessee, Virginia, Washington D.C., West Virginia
Zone C
Alaska, Colorado, Connecticut, Idaho, Iowa, Maine, Massachusetts, Michigan, Minnesota, Montana, New Hampshire, New York, North Dakota, Oregon, Rhode Island, South Dakota, Utah, Vermont, Washington, Wisconsin, Wyoming