New Hampshire Code of Administrative Rules
He - Department of Health and Human Services
Subtitle He-P - Former Division of Public Health Services
Chapter He-P 4000 - NEW HAMPSHIRE RULES FOR THE CONTROL OF RADIATION
Part He-P 4020 - STANDARDS FOR PROTECTION AGAINST RADIATION
Section He-P 4020.12 - Dose to an Embryo/Fetus

(a) The licensee or registrant shall 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) .

(b) The licensee or registrant shall make efforts to avoid substantial variation above a uniform monthly exposure rate to a declared pregnant woman so as to satisfy the limit in He-P 4020.12(a) .

(c) The dose equivalent to the embryo/fetus shall be taken as the sum of:

(d) If the dose equivalent to the embryo/fetus is found to have exceeded 4.5 mSv (0.45 rem) by the time the woman declares the pregnancy to the licensee or registrant, the licensee or registrant shall be deemed to be in compliance with He-P 4020.12(a) if the additional dose equivalent to the embryo/fetus does not exceed 0.5 mSv (0.05 rem) during the remainder of the pregnancy.