The mandatory uncontested hearing for TVA's Clinch River BWRX-300 opens in Oak Ridge tonight, the last procedural step before NRC commissioners vote on the first advanced-SMR construction permit ever issued in the United States.
In context: Three NRC regulatory processes are converging in the next three weeks: NEPA reform comments close August 21, the proposed ALARA standard elimination is in public comment, and the Clinch River hearing lands tonight. California is moving in the opposite direction.
Market signal
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▲ News hot
Clinch River mandatory hearing (first advanced-SMR construction permit vote now pending); California officials press for Diablo Canyon extension
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▼ Market cold
Uranium spot essentially flat week-over-week; no new hyperscaler nuclear PPA signed this week
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New-build and existing fleet are both under regulatory pressure this week: Clinch River advancing toward a construction permit in Tennessee while California's governor lets existing capacity run toward license expiration. The uranium spot market has absorbed neither development, still trading near $86 per pound.
This week at a glance
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The NRC's
Clinch River mandatory hearing opens tonight in Oak Ridge, the final procedural step before commissioners vote on the first advanced-SMR construction permit in US history
The ASLB (Atomic Safety and Licensing Board) reviews TVA's uncontested application tonight; a commissioner vote and construction permit decision is expected September to October 2026, four to five months ahead of the original December timeline.
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NRC proposes
removing ALARA from radiation protection rules, replacing the standard with a "graded approach to dose management"; public comments are due August 31
The proposed rule, published July 15, also raises public dose thresholds and streamlines dosimetry compliance.
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California officials urged Governor Newsom to extend
Diablo Canyon to 2045; Newsom announced August 10 he will not seek an extension past 2030
Without new legislation, Diablo Canyon closes on license expiration, removing 2,240 MWe of carbon-free generation from the California grid.
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Congress introduced bills to
modernize uranium enrichment licensing and repeal the Yucca Mountain designation, opening new regulatory pathways for domestic enrichment and consent-based waste management
Nevada senators separately introduced a bill to permanently bar Yucca Mountain from serving as a waste repository and require DOE to study alternative disposal sites.
Source → live map at entel.jrand.net/nukemap
Stat of the week
77.5%
The share of Slovakia's electricity that will come from nuclear power when Mochovce Unit 4 reaches full commercial operation, the highest proportion for any country's national grid. Slovakia already operates five reactor units at two sites; Mochovce 4 is the last of a four-unit expansion delayed by more than a decade.
In depth
Reference: new this issue
BWRX-300: GE Vernova Hitachi's 300 MWe integral boiling water small modular reactor, designed for factory fabrication and truck-transportable modules; the design in TVA's Clinch River application.
ALARA: "As Low As Reasonably Achievable," the NRC radiation-protection standard in 10 CFR Part 20 requiring licensees to minimize doses beyond meeting hard exposure limits.
ASLB: The Atomic Safety and Licensing Board, the NRC's independent adjudicatory panel that holds hearings on licensing applications before commissioners vote on final decisions.
Subsequent license renewal: An NRC license extension from 60 to 80 years of reactor operation, granted after a new application and NRC review of long-term aging management programs.
Regulatory
Clinch River Mandatory Hearing: TVA's BWRX-300 Enters Its Final Review Before the First Advanced-SMR Construction Permit
Before: NRC staff issued the safety evaluation recommending a construction permit for TVA's Clinch River Unit 1 BWRX-300 on June 29, 2026. Issue 10 flagged December 2026 as the expected timeline for a final commissioner decision. Issue 12 reported the NRC moved the mandatory hearing to August 13, four to five months ahead of schedule, via a Federal Register notice on July 7.
Now: The mandatory uncontested hearing opens tonight at the Pollard Technology Conference Center in Oak Ridge, Tennessee, with a public open house at 5 pm and the formal ASLB hearing at 5:30 pm. No formal intervenors have contested TVA's
construction permit application. Once the ASLB issues its initial decision, NRC commissioners vote on whether to issue the construction permit. A permit would authorize TVA to begin physical construction of the 300 MWe BWRX-300 at the Clinch River site, the first advanced small modular reactor to begin construction in the United States.
→ The ASLB initial decision and commissioner vote, expected September to October 2026
Regulatory
NRC Proposes Eliminating ALARA: A Major Radiation Protection Overhaul
Before: ALARA has been codified in 10 CFR Part 20 since the early 1970s, requiring every NRC licensee to minimize radiation doses beyond meeting hard exposure limits. The standard applied uniformly to power reactors, research reactors, hospitals, industrial licensees, and fuel cycle facilities. No administration had proposed removing ALARA as the governing framework.
Now: NRC published a
proposed rule on July 15, 2026, to eliminate ALARA and replace it with a "graded approach to dose management" that scales compliance requirements to the actual dose potential of an activity. The proposed rule also expands dosimetry options, raises public dose and effluent thresholds, streamlines planned worker exposure protocols, and reduces administrative reporting requirements. Comments are due August 31, 2026.
→ Volume and composition of public comments due August 31
Regulatory
Diablo Canyon: California Officials Push for 2045 Extension as Newsom Declines to Act
Before: PG&E's Diablo Canyon operates two pressurized water reactor units in Avila Beach, California, licensed through 2029 (Unit 1, 1,122 MWe) and 2030 (Unit 2, 1,118 MWe) under NRC renewals and California Senate Bill 846. Any extension past those dates requires new NRC license renewal applications and state legislation.
Now: A group of California elected officials sent Governor Newsom a letter on August 4 urging the legislature to extend Diablo Canyon operations to 2045. On August 10, Newsom announced he will
not push for an extension, stating he would leave the decision to the next administration. PG&E has not filed or announced plans for further license renewal. Without legislative action, Diablo Canyon closes when its current licenses expire, removing 2,240 MWe of carbon-free generation from the California grid, per NRC license data.
→ Whether Newsom's successor or the California legislature initiates a new license renewal push before the 2027 legislative session
Global signal
Slovakia
Slovakia's Mochovce 4
reached first criticality on August 6; full-power operation will put nuclear at 77.5% of Slovak electricity, a projected world record.
What Slovakia delivers on a national grid is the benchmark US utilities will be asked to match.
Question of the week
“If NRC commissioners approve TVA's Clinch River BWRX-300 construction permit after tonight's mandatory hearing, the US gets its first advanced-SMR construction start. What's the constraint that most threatens the timeline to grid power: supply chain, licensed operators, or the approval pipeline for subsequent units?
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Until next Thursday,
Jace Arnold
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