The "Identification Card" sign serves as a reminder for employees and individuals to have their identification on them before entering and while on the premises. Pictured on the sign is an example of an ID card to give visual reinforcement. 

The sign is best displayed upon entry to the workplace where ID cards are essential to gain access to certain rooms, areas and services. It can also be used in public spaces where individual identification is needed to gain access and/or confirm eligibility.