The 12th District Cash Operation is responsible for, among many things, the distribution of fit currency to financial institutions in the largest of the 12 Federal Reserve Districts. Covering 35 percent of the nation’s geographic area, the 12th District includes the nine western states—Alaska, Arizona, California, Hawaii, Idaho, Nevada, Oregon, Utah, and Washington—plus American Samoa, Guam, and the Commonwealth of the Northern Mariana Islands. To learn more about the Cash processing operations in the 12th District, select from the following locations.