Radiation regulation changes advised.
D004781:Environmental Exposure / Q000331:legislation & jurisprudence* / Q000592:standards*; D033161:Government Regulation; D017410:Practice Guidelines as Topic; D011835:Radiation Protection / Q000331:legislation & jurisprudence* / Q000592:standards*; D011874:Radiometry / Q000592:standards*; D014481:United States