Employees in all warehouse positions must be able to immediately perceive auditory warning signals such as bells, alarms, and horns that are used to warn employees of the start-up, movement, or approach of equipment (including forklifts, turrets, overhead cranes, conveyors, trucks, and other equipment operated inside or outside the warehouse), mechanical abnormalities, and similar risk situations during warehouse operations. In lieu of the specified education and experience requirements, a proven capability to perform the essential functions of the job, as demonstrated by an equivalent combination of education, training and/or relevant work experience may be considered.