What action would lead to a yellow card failure no. 3 for bench press?

In the context of powerlifting, receiving a yellow card is a formal warning given to a competitor for specific infractions during their lift. A yellow card failure no. 3 in the bench press would be awarded when a lifter fails to follow commands given by the referee during the lift.

Commands are critical in ensuring that all lifts are conducted under the same conditions and standards, maintaining fairness and safety. During the bench press, a competitor must wait for the referee's signal to initiate the lift (the "Start" command) and to rack the barbell after completion (the "Rack" command). Missing these commands disrupts the integrity of the lift, as it may indicate that the lifter is not following the controlled environment that is necessary for competitive powerlifting.

Thus, when a lifter commits violations related to missed commands, it can lead to a yellow card being issued, specifically indicating that the failure was a result of not adhering to the established protocols during the bench press performance.