Document: 10 CFR Part 50
Document ID: d0ed3b22-f5a8-42b0-8cac-2e9eadacfdb8
Document Type: cfr
Title: Contents of applications; technical information.
Source: 10 CFR Part 50
Source URL: https://www.ecfr.gov/current/title-10/part-50/section-50.34
Revision Date: 
Chapter: 
Section ID: 50.34
CFR Part: 50
CFR Title: 10

Content:
[ 4 ] A whole body dose of 25 rem has been stated to correspond numerically to the once in a lifetime accidental or emergency dose for radiation workers which, according to NCRP recommendations at the time could be disregarded in the determination of their radiation exposure status (see NBS Handbook 69 dated June 5, 1959). However, its use is not intended to imply that this number constitutes an acceptable limit for an emergency dose to the public under accident conditions. Rather, this dose value has been set forth in this section as a reference value, which can be used in the evaluation of plant design features with respect to postulated reactor accidents, in order to assure that such designs provide assurance of low risk of public exposure to radiation, in the event of such accidents. [ 5 ] Alphanumeric designations correspond to the related action plan items in NUREG 0718 and NUREG-0660, “NRC Action Plan Developed as a Result of the TMI-2 Accident.” They are provided herein for information only. [ 6 ] The fission product release assumed for these calculations should be based upon a major accident, hypothesized for purposes of site analysis or postulated from considerations of possible accidental events, that would result in potential hazards not exceeded by those from any accident considered credible. Such accidents have generally been assumed to result in substantial meltdown of the core with subsequent release of appreciable quantities of fission products.