NRC Issues Draft White Paper to Help Streamline Licensing for Microreactors – JD Supra

Morgan Lewis - Up & Atom
The NRC released a draft white paper discussing options to streamline its regulatory licensing process for microreactors. Specifically, the NRC Staff is “considering strategies to streamline the license review process by maximizing standardization and finality through the use of design certification, standard design approval, and topical report approvals” under 10 CFR Part 52, and is focusing on the following areas:
Background
Microreactors are typically defined as a subset of advanced non-light water reactors that have small site footprints. In October 2020, the NRC issued SECY-20-0093 to address certain regulatory and policy issues associated with licensing microreactors. The new draft white paper is a follow-up to that SECY and to additional stakeholder feedback, which the NRC intends to use to “support potential commercial deployment of micro-reactors, including so-called fission batteries” which will “allow for the deployment of large numbers of such reactors.”
NRC Recommendations
The Staff proposes working toward standardization in several areas, mostly under 10 CFR Part 52: the design certification (DC) process, the COL process, operational programs, manufacturing licenses, possession and transportation of special nuclear material, external hazards and siting, and environmental reviews.
Design Certification and COL Processes      
The Staff found that it could maximize standardization through DC and COL processes under the following conditions:
Operational Programs
The Staff divided operational programs into two groups: Group 1, which consists of programs that are material to the adequacy of design, such as technical specifications and design quality assurance; and Group 2, which consists of programs that are not material to the adequacy of design, such as emergency planning and security.
Regarding Group 1, the Staff found that “neither 10 CFR Part 52 nor the [Atomic Energy Act] precludes resolution of Group 1 requirements through design certification” and that the “regulations in 10 CFR Part 52 do not require the design certification to include information on the inservice inspection or inservice testing programs.” Of note, the Staff pointed out that it did not give the same degree of finality to Group 1 requirements when it completed the advanced boiling water reactor design certification rule more than two decades ago. The Staff also noted that, although it “is exploring options to provide finality to technical specifications at the design certification stage to further streamline the COL review,” this change “to the degree of finality provided in a design certification for Group 1 programs would constitute a policy change and would require Commission approval.”
Regarding Group 2, the Staff found that the Commission would “need to settle several significant policy questions” to resolve these requirements through design certification. The Staff also said that it is considering addressing these policy issues as part of the ongoing 10 CFR Part 53 rulemaking effort, but that under the current regulatory framework, “to streamline micro-reactor licensing, a vendor may address Group 2 programs in a topical report(s) proposing standardized operational programs.”
Manufacturing Licenses
We have been urging the adoption of manufacturing licenses to streamline the NRC licensing process, so we are pleased to see the Staff place some focus on this option. The Staff found that manufacturing licenses “could be incorporated into licensing strategies that cover stationary micro-reactors built in a factory and transported to a licensed site, with no fuel loaded at the manufacturing site,” which would “reduce the need for site-specific inspections and verifications.” It also found, however, that “separate licenses will be necessary for transporting a fueled reactor from a manufacturing facility to a preapproved site and for initial testing and performing preoperational testing of a reactor with fuel in a manufacturing facility,” and that “scenarios involving starting and testing a reactor in the factory under a manufacturing license are beyond the current scope of the 10 CFR Part 53 rulemaking, because an OL or COL would be required for operation of a reactor at the manufacturing site.
Possession and Transportation of Special Nuclear Material
The Staff also noted that certain vendors are considering manufacturing and assembling reactor components, fueling the reactor in a factory, transporting the fueled reactor to approved sites, and possibly transporting the reactor containing spent nuclear fuel back to the factory. Such vendors would have to consider other applicable regulations located at 10 CFR Parts 30, 40, 70, 71, 73, and 74, as well as certain Department of Transportation regulations.
External Hazards and Siting
The Staff also outlined external hazards and siting requirements that could be streamlined. The Staff noted that if a “design certification identifies parameters that the design is insensitive to or that can be bounding for a number of predetermined COL sites, then this will eliminate or reduce the level of effort required at the COL stage.” The Staff also included a helpful hazard screening flow diagram.
Environmental Reviews
To meet requirements set out by the National Environmental Policy Act (NEPA) and other statutes, the Staff must perform a review under 10 CFR Part 51. The Staff listed several options for streamlining the environmental review for microreactors, including the following:
Morgan Lewis will continue to follow the Staff’s efforts to streamline the licensing process and will report on future updates.
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