Document: NUREG-0800
Document ID: 6ef15e93-eb75-46bf-be7e-34634d0c6d28
Document Type: srp
Title: SITE PROXIMITY MISSILES (EXCEPT AIRCRAFT)
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070510635.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.5.1.5
CFR Part: 
CFR Title: 

Content:
s between the design features, analytical techniques, and procedural measures proposed for its facility and the SRP acceptance criteria and evaluate how the proposed alternatives to the SRP acceptance criteria provide acceptable methods of compliance with the NRC regulations. 1. To meet the requirements of 10 CFR Part 100 , the probability that site proximity missiles will impact the plant and cause radiological consequences greater than the 10 CFR Part 100 exposure guidelines must be less than an order of magnitude of 10-7 per year (see guidance in SRP Section 2.2.3). If the review indicates that the above criterion is not met, then the acceptance criterion described in item 2 below applies. 2. The plant will meet the relevant requirements of GDC 4 and will be considered appropriately protected against site proximity missiles’ design if the SSCs important to safety are capable of withstanding the effects of the postulated missiles without loss of safe-shutdown capability and without causing a release of radioactivity in excess of the 10 CFR Part 100 dose guidelines Technical Rationale The technical rationale for application of these acceptance criteria to the areas of review addressed by this SRP section is discussed in the following paragraphs: 1. 10 CFR Part 100, 10 CFR 100.10, and 10 CFR 100.20 establish site requirements in conjunction with other design features to ensure a low risk of public exposure. The NRC has established a probability of less than an order of magnitude of 10-7 per year as a staff objective for meeting the requirements of 10 CFR Part 100. In terms of missiles generated by explosions, RG 1.91 indicates that it is the judgment of the NRC staff that, 3.5.1.5-4 Revision 4 - March 2007 if the exposure rate can be shown to be less than about 10-7 per year, the risk of damage from explosions is sufficiently low. Regardless of the source of site proximity missiles, missile hazards that have the potential to cause onsite accidents leading to the