Serves eight districts in British Columbia, Washington, Oregon, Idaho, Utah, western Wyoming, northern Nevada, and northern California.

Serves eight districts in central and southern California, southern Nevada, and Hawaii.

Serves nine districts in Texas, Oklahoma, New Mexico, Arizona, Colorado, eastern Wyoming, and western Nebraska.

Serves six districts in Minnesota, Iowa, Nebraska, South Dakota, North Dakota, Montana, Ontario, Alberta, Saskatchewan, and Manitoba.

Serves seven districts in Louisiana, southern Mississippi, Alabama, Georgia, Florida, South Carolina, North Carolina, Virginia, and The Bahamas.