Abstract: A cart sanitizer/washer is disclosed. The cart sanitizer/washer includes a sanitization and wash chamber formed by a right sidewall panel, a left sidewall panel, a front sidewall panel, a rear sidewall panel, a ceiling panel, and a floor. Entry and exit ramps may be included to facilitate the rolling of one or more carts into the chamber. The sanitizer/washer includes a detergent container, a rinse agent container, a sanitizer container, a detergent pump, a rinse agent pump, a circulation pump, a sanitizer pump, and a drain pump in a compartment located above the chamber. An Ultraviolet (UV) Germicidal Irradiation (UVGI) system may be included within the chamber to provide an alternative meaning of sanitizing the cart positioned within the chamber with one or more lamp.