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Washington State Institute for Public Policy

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Publications

Found 1 results

State Policies Supporting the Implementation of Small Modular Reactors

Open Publication PDF

Colin Gibson, Julia Cramer - December 2025

The 2025 Legislature directed WSIPP to review the policies and funding mechanisms adopted by other states to support the implementation of small modular reactors (SMRs). Small modular reactors are nuclear reactors with a generating capacity of approximately 300 megawatts or less, designed with modular technology that enables factory fabrication.

We identified 79 policies in 35 states supporting the implementation of SMRs. We categorized each policy based on the stage of the site development process it targets, and on the type of activity it involves. Information gathering activities include studies on SMR feasibility, siting, inputs, and regulatory reforms. Coordination efforts include multi-state coalitions and collaboration between state agencies to facilitate SMR construction. Regulatory reforms include rules regarding permitting and integration with electricity markets to expedite approval. Financial support includes cost recovery, tax preferences, competitive grants and loans, and direct subsidies.

These policies typically leverage state resources, including the existing nuclear industry and federal research laboratories. They also address state-specific challenges, including utility structures, permitting requirements, and environmental regulations.

Our analysis includes policies that explicitly affect advanced nuclear reactors. As a result, policies that support energy infrastructure more broadly are not included in our analysis.

Download:   Report    Executive Summary  
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Legislation