Recommendations, Risk Values and Other Factors  ICRP Publication 60  NCRP 116 
Assumed Radiation Risks  
Workers  4.0 x 10^{2} Sv^{1} for fatal cancer  4.0 x 10^{2} Sv^{1} for fatal cancer 
0.8 x 10^{2} Sv^{1} for nonfatal cancer detriment  0.8 x 10^{2} Sv^{1} for nonfatal cancer detriment  
0.8 x 10^{2} Sv^{1} for severe genetic effects  0.8 x 10^{2} Sv^{1} for severe genetic effects  
Members of the Public  5.0 x 10^{2} Sv^{1} for fatal cancer  5.0 x 10^{2} Sv^{1} for fatal cancer 
1.0 x 10^{2} Sv^{1} for nonfatal cancer  1.0 x 10^{2} Sv^{1} for nonfatal cancer  
1.3 x 10^{2} Sv^{1} for severe genetic effects  1.3 x 10^{2} Sv^{1} for severe genetic effects  
Embryofetus  not specifically stated  ~10 x 10^{2 }Sv^{1} 
Occupational Dose Limits  
Based on Stochastic Effects  50 mSv annual effective dose limit and 100 mSv in 5 y cumulative effective dose limit^{c}  50 mSv annual effective dose limit and 10 mSv x age (y) cumulative effective dose limit^{c} 
Based on Deterministic Effects  150 mSv equivalent dose to lens of eye and 500 mSv annual equivalent dose limit to the skin, hands and feet^{d}  150 mSv annual equivalent dose to lens of eye and 500 mSv annual equivalent dose limit to the skin, hands and feet^{d} 
Annual Limit on Intake (ALI) 
20 mSv E (50) Bq^{1}

^{ _ } 
Annual Reference Levels on Intake (ARLI)  ^{ _ } 
20 mSv E (50) Bq^{1}

Public Dose Limits^{b}  
Based on Stochastic Effects  1 mSv annual effective dose limit and, if needed, higher values provided that the annual average over 5 y does not exceed 1 mSv^{c}  1 mSv annual effective dose limit for continuous exposure, and 5 mSv annual effective dose limit for infrequent exposure^{c} 
Based on Deterministic Effects  15 mSv annual effective dose limit to lens of eye and 50 mSv annual equivalent dose limit to skin, hands, and feet^{d}  50 mSv annual equivalent dose limit to skin, and extremities^{d} 
Embyofetus  2 mSv equivalent dose to the women's abdomen once pregnancy has been declared and limitaing intakes of radionuclides to about 1/20 of an ALI^{d}  0.5 mSv equivalent dose limit in a month once the pregnancy is known^{d} 
Negligible Individual Dose (NID)  _  0.01 mSv annual effective dose per source or practice^{e} 
^{b}The dose limits exclude medical and natural background exposures  ^{c} The concepts of effective dose equivalent and effective dose are different  ^{d} The concepts of equivalent dose and dose equivalent are also different 
^{e} NID does not have a corresponding risk level 