Document: NUREG-0800
Document ID: c1650863-1de1-414d-af2a-3303c5a3d208
Document Type: srp
Title: FUNCTIONAL DESIGN, QUALIFICATION, AND INSERVICE TESTING
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0707/ML070720041.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.9.6
CFR Part: 
CFR Title: 

Content:
activities related to dynamic restraints. Visual examination is required by the OM Code to check for degradation, missing parts, and leakage, and functional testing is necessary to assure operational readiness. The snubbers can be mechanical or hydraulic. C. The staff will review the duration (frequency) of IST program activities for dynamic restraints. D. The staff will review functional testing criteria or parameters for dynamic restraints. E. SRP Section 3.9.3 provides additional guidance for the design and testing of dynamic restraints. 5. Relief Requests and Alternative Authorizations to ASME OM Code A. Pursuant to 10 CFR 50.55a(a)(3), the Commission may authorize alternatives to OM Code requirements if the alternatives will provide an acceptable level of quality and safety, or compliance will result in hardship or unusual difficulty without a compensating increase in the level of quality and safety. The OM Code also provides for alternatives for the code user initiating a request to use a 3.9.6-4 Revision 3 - March 2007 code case when the need is urgent. Code cases clarify the intent of existing requirements or provide alternative requirements. Acceptable code cases addressed by the staff are in RG 1.192. Plant-specific requests for the application of alternatives are primarily suitable to unique non-recurring applications where a code case is not considered to be appropriate. B. Pursuant to 10 CFR 50.55a(f)(6)(i) for pumps and valves, and 10 CFR 50.55a(g)(6)(i) for dynamic restraints, the Commission may grant relief from the OM Code requirements if conformance would be impractical for the facility and may impose such alterative requirements as it determines is authorized by law and will not endanger life or property or the common defense and security, and is otherwise in the public interest, giving due consideration to the burden upon the license that could result from imposing the requirements. The staff will review any requests for relief to determine if