AINuclear licensing reform: commercial materials, brownfield sites, enrichment

Nuclear Regulation and EPA NominationsSenate Environment and Public Works Subcommittee on Clean Air, Climate, and Nuclear Innovation and Safety · 2026-05-20 · 119th Congress
The Senate EPW Subcommittee on Clean Air, Climate, and Nuclear Innovation and Safety held a legislative hearing to examine S.4529 (allowing commercial-grade steel and concrete in non-safety-related nuclear plant structures), the discussion draft RECHARGE Act (streamlining deployment of advanced reactors at retired fossil fuel sites), and the discussion draft Enrichment Licensing Modernization Act (updating 40-year-old domestic uranium enrichment licensing rules). Begins at 0:17:40
Transcript
Highlights

Title

Nuclear licensing reform: commercial materials, brownfield sites, enrichment

Purpose

The Senate EPW Subcommittee on Clean Air, Climate, and Nuclear Innovation and Safety held a legislative hearing to examine S.4529 (allowing commercial-grade steel and concrete in non-safety-related nuclear plant structures), the discussion draft RECHARGE Act (streamlining deployment of advanced reactors at retired fossil fuel sites), and the discussion draft Enrichment Licensing Modernization Act (updating 40-year-old domestic uranium enrichment licensing rules). Three witnesses testified on how each proposal could cut costs and timelines while preserving NRC safety oversight, with Chair Cynthia Lummis and Ranking Member Mark Kelly framing the package as bipartisan energy-security legislation. Begins at0:17:40

Who spoke

Chair Cynthia Lummis (R-WY)0:17:40: Opened the hearing, describing Wyoming's uranium legacy and framing nuclear energy as essential baseload power for AI, data centers, and manufacturing0:20:24; introduced the three bills, including the Build Nuclear with Local Materials Act she is prime-sponsoring0:21:43 and the RECHARGE Act's TerraPower brownfield example0:22:39; later questioned witnesses on brownfield liability0:57:49, permitting timelines1:02:30, and capital market reluctance toward nuclear1:08:58, and closed by asking each witness what they wished to add to the record1:34:06.

Sen. Mark Kelly (D-AZ), Ranking Member0:25:53: Argued nuclear expansion is a regulatory, not engineering, problem and stressed the NRC must keep independence while streamlining permitting0:26:23; said the U.S. imports 80% of enriched uranium, 20% from Russia0:29:11; detailed his Enrichment Licensing Modernization Act's mandatory-hearing-on-request provision and shift to a single operating license with a required remediation plan for pre-license construction0:53:160:54:35; questioned Dr. White on remediation requirements and NRC independence0:54:500:56:33.

Nick Loris, President, Conservative Coalition for Climate Solutions0:35:45: Said nuclear-grade concrete can cost 50% more, and some components up to 50 times more, than commercial-grade equivalents0:37:48; cited TerraPower's construction permit issued nine months ahead of schedule0:37:18; later discussed brownfield redevelopment benefits for tax bases using the Loudoun County data-center example1:00:43, warned against "doom loop" litigation citing a New York semiconductor project blocked by six objectors1:04:43, and said the U.S. need not be fully self-sufficient in enrichment if allied imports remain available1:33:42.

Dr. Adam Stein, Director of Nuclear Energy Innovation, Breakthrough Institute0:41:13: Said NRC quality-assurance costs equal about 35% of a nuclear plant's cost0:45:42; noted roughly 70 active NRC rulemakings, many tied to the bills under discussion0:43:53; said moving away from Russian enrichment would require 2–5 times current domestic separative work capacity0:44:53; testified capital markets are indeed reluctant to invest in nuclear due to regulatory uncertainty1:09:13; said Congress previously provided up to $2.7 billion for enrichment/conversion offtake support1:32:34; noted TerraPower's environmental review came in about 30% more efficient than estimated even before new rulemakings1:38:16.

Dr. Patrick White, Group Lead for Fusion Safety and Regulation, Clean Air Task Force0:46:49: Cautioned that a blanket legislative categorical exclusion for all advanced reactors at brownfield sites could be overly broad and limit public engagement, suggesting NRC rulemaking for targeted exclusions instead0:50:28; called the economic "chicken-or-egg" problem — utilities won't commit without fuel guarantees, enrichers won't invest without large orders — the biggest bottleneck to scaling nuclear1:29:41; urged maintaining NRC independence and criticized the agency for no longer publishing all commission votes1:42:23.

Chair Shelley Moore Capito (R-WV)1:17:54: Asked all three witnesses whether the NRC commission is functioning better and moving faster on implementation, and each agreed1:17:02; raised NRC workforce attrition and competition with the private sector1:20:46; asked Dr. Stein about the Department of Energy's new authority for privately funded reactors and whether NRC/DOE jurisdictional lines are blurred1:21:301:24:57.

Key moments

Lummis said the U.S. has only one uranium conversion facility and perhaps two enrichment facilities nationwide, calling expanded capacity vital for both energy and national security0:23:34.

Loris said nuclear-grade concrete can run 50% higher and some components up to 50 times more expensive than commercial-grade alternatives due to quality-assurance requirements, comparing it to paying "stadium and airport level prices"0:37:480:38:19.

Kelly's Enrichment Licensing Modernization Act would eliminate the current two-license (construction plus operating) process in favor of a single operating license, while requiring a remediation plan if construction stops before licensing completes0:53:460:54:35; Dr. White confirmed this type of remediation requirement is within NRC's purview, citing precedent in limited work authorizations for reactors0:55:090:55:21.

Dr. Stein said NRC quality-assurance costs account for about 35% of total nuclear power plant cost0:45:42.

Dr. White disagreed with a blanket legislative categorical exclusion for advanced reactors on brownfield/retired fossil sites in the RECHARGE Act, warning it could restrict public input, and instead recommended targeted NRC rulemaking0:50:28.

Lummis and Loris discussed TerraPower's Kemmerer, Wyoming project, noting its initial permitting was completed in 19 months versus a projected 27 months1:02:58; Dr. Stein separately put the efficiency gain at about 30%1:38:16.

Dr. Stein said the U.S. would need to expand domestic enrichment 2–5 times current capacity (70–100 more separative work units) to fully move away from Russian-sourced uranium0:44:53.

Chair Capito asked about DOE's new authority to license privately funded reactors; Dr. Stein said the NRC's commercial/industrial licensing jurisdiction was not transferred to DOE at the 1974 agency split and cautioned against creating a bifurcated licensing pathway1:22:111:23:09.

Dr. White set a goal of quadrupling U.S. nuclear energy by 2050, arguing standardized, repeated reactor orders (10, 20, 50, or 100 units) are needed to bring down costs versus one-off first-of-a-kind projects1:26:551:27:42.

Dr. Stein noted Congress already provided up to $2.7 billion to backstop early enrichment/conversion facility investment, since utilities are reluctant to commit capital without 40-year fuel-supply assurance and enrichers need large-scale procurement to justify new facilities1:32:34.

Metadata

Official titleHearings to examine S.4529, to require the Nuclear Regulatory Commission to allow the use of commercial-grade steel and concrete in non-safety-related structures at nuclear power plants, and proposed legislation entitled, "RECHARGE Act", and "Enrichment Licensing Modernization Act".
CommitteeSenate Environment and Public Works Subcommittee on Clean Air, Climate, and Nuclear Innovation and Safety
Chamber / CongressSenate · 119th Congress
Date2026-05-20
TypeOpen Hearing
Witnesses
(none listed in event metadata)
Videosenate-isvp
Transcript235 caption blocks · 12,032 words · 1:45:52 runtime
EventCongress.gov 338421