An analysis of two union databases conducted in 2000 showed that hazardous energy-related fatalities declined, depending on the industry, by between 30 percent and 55 percent in the years following the enactment of the Lockout/Tagout rule.... OSHA currently estimates that the regulation prevents a total of 50,000 injuries and 120 fatalities per year.
http://inthesetimes.com/working/entry/11837/perrynomics_and_the_crusade_against_regulation/
