Build Nuclear with Local Materials Act of 2026
- Sponsor
- Sen. Lummis, Cynthia M. [R-WY]
- Committees
- Environment and Public Works Committee (primary)
- Last action
- May 20, 2026
Bottom line
This bill aims to streamline construction of nuclear power plants by allowing less stringent, commercial-grade materials for non-critical components, potentially reducing costs and accelerating development, while maintaining a safety override for the NRC.
What it actually does
This bill mandates the Nuclear Regulatory Commission (NRC) to initiate a rulemaking within 90 days to authorize the use of commercial-grade steel and concrete in non-safety-related structures at nuclear power plants. The NRC can only require stricter material standards if it explicitly determines that not doing so would pose a specific safety risk that is contrary to the common defense and security and adequate protection of public health and safety.
Proponents argue
Supporters argue this bill will reduce the cost and complexity of building new nuclear power plants and maintaining existing ones by removing unnecessary regulatory burdens on non-safety-critical components. They contend that using commercial-grade materials for structures like office buildings or turbine halls, which do not directly impact reactor safety, will accelerate nuclear energy deployment, enhance energy independence, and foster economic growth, without compromising core safety.
Opponents contend
Critics might argue that even non-safety-related structures contribute to the overall resilience and operational integrity of a nuclear facility, and a blanket authorization for commercial-grade materials could introduce unforeseen vulnerabilities or complicate future safety assessments. They may express concern that any relaxation of standards, even for non-safety components, could set a precedent or subtly erode the rigorous safety culture essential for nuclear power.
The bill is exceptionally short and clear, making it very accessible for any reader to understand its core intent quickly.
Section 2(a) and 2(b)
Mandate for Commercial-Grade Materials in Non-Safety-Related Nuclear Structures
This section requires the Nuclear Regulatory Commission (NRC) to start a process within 90 days to allow nuclear power plants to use standard, commercial-grade steel and concrete for parts of the plant that are not directly involved in safety functions. The NRC can only insist on higher standards if it explicitly finds that using commercial-grade materials would pose a specific safety risk, and that this risk would be contrary to national defense, security, and public health and safety.
Supporters argue
Supporters argue that current NRC regulations often impose overly stringent and costly material requirements even for structures that have no direct bearing on nuclear safety, such as administrative buildings or conventional turbine halls. They contend that allowing commercial-grade materials for these non-safety-related components will significantly reduce construction costs and project timelines, making nuclear energy more economically viable and competitive, thereby accelerating its deployment as a clean energy source.
Critics contend
Critics might express concern that while these structures are "non-safety-related," they are still part of a nuclear facility, and a general relaxation of material standards could lead to a perception of reduced overall robustness or introduce indirect risks. They may argue that the NRC's existing rigorous standards, even for ancillary structures, contribute to a comprehensive safety culture and that any deviation should be thoroughly vetted by the agency without a congressional mandate.
Tradeoffs
The bill balances the desire to reduce the cost and complexity of nuclear power plant construction with the imperative to maintain robust safety standards. It creates a tension between regulatory flexibility and congressional directive, and between cost efficiency and the perception of uncompromising safety in nuclear infrastructure.