Nebraska Administrative Code
Topic - HEALTH AND HUMAN SERVICES SYSTEM
Title 180 - CONTROL OF RADIATION
Chapter 4 - STANDARDS FOR PROTECTION AGAINST RADIATION
Section 180-4-012 - DOSE EQUIVALENT TO AN EMBRYO/FETUS
Current through September 17, 2024
Licensees and registrants must control doses to embryo/fetus as follows.
012.01 DOSE LIMIT. The licensee or registrant must ensure that the dose equivalent to an embryo/ fetus during the entire pregnancy, due to occupational exposure of a declared pregnant woman, does not exceed 5 mSv ( 0.5 rem). See 180 NAC 4-052 for record keeping requirements.
012.02 UNIFORM EXPOSURE RATE. The licensee or registrant must make efforts to avoid substantial variation above a uniform monthly exposure rate to a declared pregnant woman so as to satisfy the limit in 180 NAC 4-012.01.
012.03 DOSE EQUIVALENT. The dose equivalent to an embryo/fetus is the sum of:
012.04 REMAINDER OF PREGNANCY. If the dose equivalent to the embryo/fetus is found to have exceeded 5 mSv ( 0.5 rem), or is within 0.5 mSv ( 0.05 rem) of this dose, by the time the woman declares the pregnancy to the licensee, the licensee or registrant must be deemed to be in compliance with 180 NAC 4-012.01 if the additional dose to the embryo/fetus does not exceed 0.5 mSv ( 0.05 rem) during the remainder of the pregnancy.
