Program Information California Bank & Trust (CB&T) is a division of ZB, N.A., which operates in nearly 500 local financial centers across 11 Western states: Arizona, California, Colorado, Idaho, Nevada, New Mexico, Oregon, Texas, Utah, Washington and Wyoming. ZB, N.A.'s parent company is Zions Bancorporation, which is included in the S&P 500 and NASDAQ Financial 100 indices (NASDAQ: ZION).