You must be provided with fall protection at:

The requirement for fall protection at four feet and above applies specifically to general industry workplaces. The Occupational Safety and Health Administration (OSHA) mandates that if an employee is working at a height of four feet or more above a lower level, fall protection must be provided. This regulation is critical because falls from even low heights can result in serious injuries or fatalities.

In addition to this, different industries have varying standards, but in general industry, the four-foot threshold is a key safety measure to protect workers. This reflects an understanding that falls can happen at relatively low heights and that preventative measures must be in place to ensure safety. While other choices may reference different heights, they do not align with OSHA's established four-foot standard for requiring fall protection in general work environments.