The Division of Occupational Safety and Health, better known as Cal/OSHA, is the department in charge of monitoring and improving the health and safety of workers in California. Cal/OSHA is responsible for creating and enforcing standards, outreach, and issuing permits, licenses, certifications, registrations, and approvals. Cal/OSHA has an enforcement branch responsible for investigating complaints and accidents. Typical complaints include workplace hazards or serious violations received from employees or law enforcement. Cal/OSHA also investigates workplace accidents that result in serious injury, illness, or death.   Accidents in the workplace are widespread. Back injuries can happen if you slip and land on your back, fall from a high place and hurt your back, or from an object falling on your back. Construction workers, firefighters, nurses, cleaners, janitors, and building maintenance workers have a high risk of back injuries.