[Code of Federal Regulations]
[Title 40, Volume 22]
[Revised as of July 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR197.36]

[Page 65]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 197--PUBLIC HEALTH AND ENVIRONMENTAL RADIATION PROTECTION STANDARDS 
FOR YUCCA MOUNTAIN, NEVADA--Table of Contents
 
    Subpart B--Public Health and Environmental Standards for Disposal
 
Sec. 197.36  Are there limits on what DOE must consider in the performance 
assessments?

    Yes. The DOE's performance assessments shall not include 
consideration of very unlikely features, events, or processes, i.e., 
those that are estimated to have less than one chance in 10,000 of 
occurring within 10,000 years of disposal. The NRC shall exclude 
unlikely features, events, and processes, or sequences of events and 
processes from the assessments for the human intrusion and ground water 
protection standards. The specific probability of the unlikely features, 
events, and processes is to be specified by NRC. In addition, unless 
otherwise specified in NRC regulations, DOE's performance assessments 
need not evaluate, the impacts resulting from any features, events, and 
processes or sequences of events and processes with a higher chance of 
occurrence if the results of the performance assessments would not be 
changed significantly.