An investigation by the Mine Safety and Health Administration (MSHA) found that enforcement efforts at the Upper Big Branch Mine (UBB) were "compromised" prior to the deadly 2010 explosion there, due to a failure to follow established policy on the part of agency personnel.

The company Predictive Solutions recently published a White Paper on Safety Inspections, containing four truths of inspections. Safety truth #1: More inspections predict a safer workplace.