Work-to-rule, also known as an Italian strike or a slowdown in United States usage, called in Italian a sciopero bianco meaning "white strike", is a job action in which employees do no more than the minimum required by the rules of their contract or job, and strictly follow time-consuming rules normally not enforced. It is a passive-aggressive form of labor opposition. This may cause a slowdown or decrease in productivity if the employer does not hire enough employees or pay the appropriate salary and consequently does not have the requirements needed to run normally.