The United Farm Workers of America has filed a lawsuit against the California Division of Occupational Safety and Health alleging that the agency is failing to protect laborers from heat illnesses and death.

The plaintiffs, who include individual workers and their families and the UFW Foundation, filed the action on Thursday in Los Angeles County Superior Court. The 54-page complaint alleges that Cal/OSHA has systematically failed to enforce regulations that require farmers to provide water, shade and rest to workers to prevent heat illness or death.