Worker's compensation legislation requires the employer to furnish a reasonably safe place to work, suitable equipment, rules and instructions when they are reasonably necessary, and reasonably competent foremen and superintendents. The employer is liable for an employee's acts of negligence, for the employer's own gross negligence, and for extraordinary risks of work. In most cases the employer is not liable for accidents occurring outside the place of work, or for those which have not arisen directly from employment. State workers' compensation statutes vary by state.

