35 Ill. Adm. Code 1000.301
Permissible Levels of Radiation in Unrestricted Areas
Section 1000
Section 1000.301 Permissible
Levels of Radiation in Unrestricted Areas
A person must not possess, use,
receive, or transfer licensed material or engage in licensed activities in a
way that creates radiation levels in the air in any unrestricted area:
a) That could result in a dose to the whole body greater than 0.5
rem in any single year, when all radioactive emissions by the licensee are considered;
b) That could result in an individual continuously present in the
area receiving a dose greater than 2 millirems in any single hour, when all
radioactive emissions by the licensee are considered; or
c) That could result in an individual continuously present in the
area receiving a dose greater than 100 millirems in any 7 consecutive days,
when all radioactive emissions by the licensee are considered.