Many companies I work with have some set of critical safety policies that are essentially deal breakers and must be adhered to. These are usually called something like “Rules to Live By,” “Life Saving Rules,” or “Fatal Four” and they are based on the high risk of injury or fatality that is associated with certain critical activities.
Common rules to live by focus on things like Lock Out/Tag Out, fall protection, obtaining required permits before doing certain tasks, or drug and alcohol use. Obviously they can vary based on the industry and the organization, but they all accomplish an important goal which is to communicate a very clear, concise, and specific set of policies that can keep people safe from the most dangerous hazards on the job. This puts everyone on the same page about the biggest exposures and how to avoid them.