1. Bureau of Labor Statistics. Workplace Injury and Illness Summary. 2011, [cited 2013]; .
2. Bureau of Labor Statistics. Census of Fatal Occupational Injuries Summary. 2012 [cited 2013]; .
3. Centers for Diesease Control and Prevention. NIOSH Strategic Goals. 2013; .
4. OSHA 1999. OSHA technical manual: Section VII, chapter 1.
5. OSHA, FORMULAS for CALCULATING RATES, OSHA Recordable Incident Rate, Lost Time Case Rate, Lost Work Day Rate (LWD), DART Rate, Severity Rate.