Do you have employees who work alone? Routinely? Periodically? Occasionally? You might have a late shift worker who runs the warehouse alone, or a maintenance worker who goes on the roof to repair an air conditioning unit alone, or a worker in a remote lab conducting tests with chemical agents alone. To what type of hazards are these folks exposed? What type of controls should be implemented?

Almost every employer needs a formal Work Alone? policy that:

1) Defines which tasks are not suitable for working alone. OSHA prohibits working alone in at least nine OSHA general industry standards.

2) Defines steps to take such as communication systems required, or reporting in periodically, or having someone check on the employee periodically when employees are allowed to work alone on highly hazardous jobs such as working with corrosive chemicals, high voltage, or testing and positioning of machinery.

3) Establishes other controls such as emergency signaling and emergency response and rescue.

Recipe for injury

Over the years, I have investigated several incidents where an employee was working alone and was caught in machinery, trapped and could not get away, or was splattered with acid when a chemical reaction went wrong. Having a work buddy nearby or a communication or signaling device within reach could have prevented these incidents from becoming more severe.

In one case, an employee was injured while working alone in a far corner of the warehouse cleaning up the area for about four hours. He was exposed to moving machinery, electrical equipment, harsh chemicals, excessive noise, heat, and vermin such as spiders. In addition, we learned that this employee has hearing loss and could not hear the emergency alarm if it had sounded.

In another example, a park ranger in a national park in the western U.S. was hurt while repairing the walkway through an area of the park. He was exposed to electrical tools, running water, excessive heat (about 95 degrees that day), and heavy lifting. He was a mile or so from the ranger station without a working partner. Occasionally, a hiker would walk by, but on this hot day, that seldom happened.

These examples show the need for communication devices, another co-worker, or having someone check on employees periodically.

Plan ahead

It is quite acceptable for employees to work alone (unless OSHA prohibits it). Many times these employees are not really alone. For example, police officers and letter carriers both work among the public most of the day, or usually have communication devices. For the police officers and letter carriers, being among public citizens and communication devices are reasonable protection should something go wrong.

But most fixed site jobs in factories, warehouses, and buildings expose employees to hazards when there may not be other people around. When this is the case, a plan (or Work Alone? policy) should be followed. This plan should include consideration of such steps as:


  • Specifying that the employee must carry a radio, cell phone, walkie-talkie, man-down indicator, global positioning device, satellite telephone, etc.


  • Specifying how often and to whom the employee must call in to say that all is well. Many employers who have such a policy require communications every hour, and in some cases, every 15 minutes. This should be based on the severity of the hazard.

  • Specifying when security or a supervisor will visit the employee to assure that all is well.

  • Specifying when an employee must sign in and out on a work log so that someone will know that the employee is out working alone.

  • Planning a response to an emergency.

    Use the template fill-in-the-blank policy with this article as a starter for your own policy.

    Be prepared

    OSHA does not have a specific requirement to develop and implement a work alone policy. But failure to have a policy could be considered a General Duty OSHA requirement and has been cited by OSHA in the past under the General Duty statute.

    I assisted one of my clients in developing a Work Alone? policy several years ago after one of their foresters did not return to the camp one day after being in the forest by himself. No one missed him until the next day when he did not show up for work because he lived alone. After checking with relatives and his favorite watering holes, a search team was sent out. Several days later the search team found the worker's body; he had suffered a stroke while in the woods. Perhaps nothing could have been done for him, but if he had carried a communication device or other provisions had been made to account for him, the outcome may have been different.