Zone | States |
1 | Arkansas, Colorado, Iowa, Kansas, Missouri, Nebraska, Oklahoma. |
2 | Alabama, Illinois, Indiana, Kentucky, Louisiana, Minnesota, Mississippi, New Mexico, North Dakota, South Dakota, Tennessee, Texas, Utah, Wisconsin, Wyoming. |
3 | Arizona, Florida, Georgia, Idaho, Michigan, Montana, Nevada, North Carolina, Ohio, South Carolina, Virginia, West Virginia, |
4 | California, Connecticut, Delaware, Maryland, New Jersey, New York, Oregon, Pennsylvania, Washington, Washington D.C. |
5 | Maine, Massachusetts, New Hampshire, Rhode Island, Vermont. |