There are no state laws requiring employers to have a dispensary at the worksite or to keep a doctor or nurse on call to treat workplace injuries. However, the federal Occupational Safety and Health Act (OSH Act), which governs Missouri workplace safety and health, requires every employer to ensure that medical personnel are readily available for advice and consultation and that when an infirmary, clinic, or hospital is not within close proximity to the workplace, there is an individual (or individuals) who is adequately trained to administer first aid. According to OSHA, "close proximity" means that in areas where accidents resulting in suffocation, severe bleeding, or other life-threatening or permanently disabling injury or illness can be expected, a 3- to 4-minute response time (from time of injury to time of administering medical treatment or first aid) is required. In other circumstances, such as where a life-threatening or permanently disabling injury is an unlikely outcome of an accident, a longer response time, such as 15 minutes, is acceptable.
Employers are responsible for making decisions about the details of emergency medical care in their workplaces, depending on the size, the kinds of hazards present, the history of accidents, and the costs of various options (29 CFR 1910.151).
Federal requirements for medical treatment apply in Missouri to private sector employers (businesses and nonprofit organizations). An explanation of federal requirements and a description of an effective workplace medical program is available.