Abstract: A truck mounted urinal system that includes a reservoir that is emptied with a minimum of leakage includes a urine receptacle having a sealable lid. The receptacle is attached at its outlet opening to a transfer hose that connects to the reservoir. The outlet opening includes a push-pull activated shutoff valve to control fumes. The transfer hose is removably sealed to the inlet opening of the reservoir with a compression nut and includes a shutoff valve. The inlet opening of the reservoir is dimensioned so that when the shutoff valve is closed and the transfer hose withdrawn, any urine left in the hose below the shutoff valve will be contained within the inlet opening, thus preventing leakage. An emptying port with cap is provided that includes opening at the base of the port for urine to return to the reservoir that may have collected on the port or the cap.