Occupational Safety and Health Administration OSHA

Maximum Permissible Dose Equivalent for Occupational Exposure

Combined whole body occupational exposure  
Prospective annual limit 5 rems in any 1 yr
Retrospective annual limit 10-15 rems in any 1 yr
Long-term accumulation (N-18) x5 rems. where N is age in yr
Skin 15 rems in any 1 yr
Hands 75 rems in any 1 yr (25/qtr)
Forearms 30 rems in any 1 yr (10/qtr)
Other organs, tissues and organ systems  
Fertile women (with respect to fetus) 0.5 rem in gestation period
Population dose limits 0.17 rem average per yr
(Reprinted from NCRP Publication No. 43, Review of the Current
State of Radiation Protection Philosophy, 1975)
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