
The map above comes from the US Department of Energy.
It shows which states have a full moratorium on new nuclear power plants (blue), which states formerly had moratoriums but have now been repealed (green) and which states have additional restrictions on the type nuclear power plants that can be built.
The 9 States in Blue are:
These 4 states have replead moratoriums that had previously been in place:
- Wisconsin (2016)
- Kentucky (2017)
- Montana (2021)
- West Virginia (2022)
And finally 3 states New York, Connecticut and Illinois have the following limited restrictions:
New York has no statewide restrictions on new reactor development — only a narrow moratorium in the service territory of the Long Island Lighting Company — Nassau, Suffolk, and parts of Queens counties.
Connecticut, on the other hand, currently prohibits reactor construction everywhere except the state’s one operating nuclear power plant, an exemption that was created in 2022.
In 2023, Illinois passed legislation rolling back its statewide moratorium on nuclear energy development. However, the new law limits any new reactors built to 300 megawatts or less.
The National Conference of State Legislatures has full list of restrictions, below is a summary followed by the detailed legiation:
Here’s a summary of the restrictions in the nine states you’ve mentioned:
Here’s a summary of the restrictions in the nine states you’ve mentioned:
California: The state prohibits new nuclear fission thermal power plants until the federal government identifies and approves technology for nuclear fuel rod reprocessing. This moratorium remains in effect until a demonstrated solution for high-level nuclear waste disposal is available.
Hawaii: Construction of nuclear power plants requires prior approval by a two-thirds vote in each house of the state legislature.
Maine: Before constructing a nuclear power plant, two conditions must be met: (1) a majority of state voters must approve the construction in a statewide election, and (2) the Public Utilities Commission must certify that the federal government has approved a demonstrable technology for high-level nuclear waste disposal and that adequate disposal facilities are operational or will be at the time the plant requires them.
Massachusetts: New nuclear power plants can only be constructed if: (1) a majority of voters approve in a statewide general election, and (2) the General Court certifies that there is an operational, federally licensed facility for the permanent disposal of high-level radioactive waste, among other safety and environmental conditions
Minnesota: The state has an outright ban on the construction of new nuclear power facilities.
New Jersey: Construction of new nuclear power facilities requires approval from the state Commissioner of Environmental Protection, confirming that the proposed method for disposing of radioactive waste will be safe.
Oregon: Similar to Maine, Oregon requires both voter approval in a statewide election and a finding that the federal government has approved a technology for high-level nuclear waste disposal before constructing new nuclear power plants.
Rhode Island: Construction of nuclear power facilities necessitates approval by the state legislature.
Vermont: The state requires legislative approval for the construction of new nuclear power facilities.
Full text:
| State | Conditions | Citations |
|---|---|---|
| California |
|
West’s Ann.Cal.Pub.Res.Code § 25524.1
(a) Except for the existing Diablo Canyon Units 1 and 2 owned by Pacific Gas and Electric Company and San Onofre Units 2 and 3 owned by Southern California Edison Company and San Diego Gas and Electric Company, no nuclear fission thermal powerplant requiring the reprocessing of fuel rods, including any to which this chapter does not otherwise apply, excepting any having a vested right as defined in this section, shall be permitted land use in the state or, where applicable, certified by the commission until both of the following conditions are met: (1) The commission finds that the United States through its authorized agency has identified and approved, and there exists a technology for the construction and operation of, nuclear fuel rod reprocessing plants. (2) The commission has reported its findings and the reasons therefor pursuant to paragraph (1) to the Legislature. That report shall be assigned to the appropriate policy committees for review. The commission may proceed to certify nuclear fission thermal powerplants 100 legislative days after reporting its findings unless within those 100 legislative days either house of the Legislature adopts by a majority vote of its members a resolution disaffirming the findings of the commission made pursuant to paragraph (1). |
| Connecticut |
|
C.G.S.A. § 22a-136
No construction shall commence on a fifth nuclear power facility until the Commissioner of Environmental Protection finds that the U.S. government, through its authorized agency, has identified and approved a demonstrable technology or means for the disposal of high-level nuclear waste. The provisions of this section shall not apply to any nuclear power generating facility operating in the state as of Oct. 1, 2022. As used in this section, “high-level nuclear waste” means those aqueous wastes resulting from the operation of the first cycle of the solvent extraction system or equivalent and the concentrated wastes of the subsequent extraction cycles or equivalent in a facility for reprocessing irradiated reactor fuel and shall include spent fuel assemblies prior to fuel reprocessing. |
| Hawaii |
|
Const. Art. 11, § 8
No nuclear fission power plant shall be constructed or radioactive material disposed of in the State without the prior approval by a two-thirds vote in each house of the legislature |
| Illinois |
or
|
220 ILCS 5/8-406
(c) After the effective date of this amendatory Act of 1987, no construction shall commence on any new nuclear power plant to be located within this State, and no certificate of public convenience and necessity or other authorization shall be issued therefor by the Commission, until the Director of the Illinois Environmental Protection Agency finds that the United States Government, through its authorized agency, has identified and approved a demonstrable technology or means for the disposal of high level nuclear waste, or until such construction has been specifically approved by a statute enacted by the General Assembly. As used in this Section, “high level nuclear waste” means those aqueous wastes resulting from the operation of the first cycle of the solvent extraction system or equivalent and the concentrated wastes of the subsequent extraction cycles or equivalent in a facility for reprocessing irradiated reactor fuel and shall include spent fuel assemblies prior to fuel reprocessing. HB 2473 (2023) Sec. 8: “Small modular reactor” or “SMR” means an advanced reactor: (1) with a rated nameplate capacity of 300 electrical megawatts or less; and (2) that may be constructed and operated in combination with similar reactors at a single site. (b) IEMA-OHS, in consultation with the Illinois Environmental Protection Agency, shall adopt rules for the regulation of small modular reactors. The rules shall be adopted by January 1, 2026 and shall include criteria for decommissioning, environmental monitoring, and emergency preparedness. |
| Maine |
|
35-A M.R.S.A. § 4302
1. Question submitted to voters. Prior to the construction of any nuclear power plant within the State, the question of approving that construction must be submitted to the voters of the State in the manner prescribed by law for holding a statewide election. This question must be submitted to the legal voters of the State at the next following statewide election. The municipal officers and plantation assessors of this State shall notify the inhabitants of their respective cities, towns and plantations to meet, in the manner prescribed by law for holding a statewide election, to vote on the acceptance or rejection of construction by voting on the following question: “Do you approve construction of the nuclear power plant proposed for (insert locations)?” 35-A M.R.S.A. § 4373 No construction may commence on a nuclear power plant, until the Public Utilities Commission has certified it under this subchapter. 35-A M.R.S.A. § 4374 The commission may certify a nuclear power plant if it finds that: 1. Federal Government identification and approval of technology. The Federal Government, through its authorized agency, has identified and approved a demonstrable technology or means for the disposal of high-level nuclear waste; 2. Waste storage facilities operational. Specific facilities with adequate capacity to contain high-level nuclear waste are in actual operation, or will be in operation, at the time the nuclear power plant being certified requires the means for the disposal of high-level nuclear waste; and 3. Proposal for disposal is in conformity. The disposal of high-level nuclear waste proposed for any nuclear power plant to be certified according to this subchapter is in full conformity with the technology approved by the authorized agency of the Federal Government. |
| Massachusetts |
|
M.G.L.A. 164 App. § 3-3
No new nuclear power plant shall be constructed or operated within the Commonwealth unless: (a) construction and operation of the proposed nuclear power plant have been approved by a majority of the voters voting thereon in a state-wide general election; and (b) the General Court has found, and has so certified by resolution duly adopted by majority vote of the members of each House: (i) that there exists an operating, federally-licensed facility for the timely and economical permanent disposal of high-level radioactive wastes generated by the proposed nuclear power plant; (ii) that an adequate emergency preparedness plan for the proposed nuclear power plant has been developed, approved, and implemented by the Commonwealth; (iii) that effective emission standards applicable to the proposed nuclear power plant have been promulgated by the Commonwealth to protect the public against health and safety hazards of radioactive air pollutants traceable to nuclear power plants within the Commonwealth; (iv) that there exists a demonstrated, federally-approved technology or means for the timely and economical decommissioning, dismantling, and disposal of the proposed nuclear power plant; and (v) that the proposed nuclear power plant offers the optimal means of meeting energy needs from the combined standpoints of overall cost, reliability, safety, environmental impact, land-use planning, and avoiding potential social and economic dislocation. |
| Minnesota |
|
M.S.A. § 216B.243
Subd. 3b. Nuclear power plant; new construction prohibited; relicensing. (a) The commission may not issue a certificate of need for the construction of a new nuclear-powered electric generating plant. (b) Any certificate of need for additional storage of spent nuclear fuel for a facility seeking a license extension shall address the impacts of continued operations over the period for which approval is sought. |
| New Jersey |
|
N.J.S.A. 13:19-11
The construction and operation of a nuclear electricity generating facility shall, however, not be approved by the commissioner unless the commissioner finds that the proposed method for disposal of radioactive waste material to be produced or generated by the facility will be safe, conforms to standards established by the Nuclear Regulatory Commission and will effectively remove danger to life and the environment from such waste material. |
| New York |
|
McKinney’s Public Authorities Law § 1020-t
In no event shall the authority construct or operate a nuclear powered facility in the service area (which is defined in McKinney’s Public Authorities Law § 1020-b as “the counties of Suffolk and Nassau and that portion of the county of Queens constituting LILCO’s [the Long Island lighting company] franchise area as of the effective date of this title.” This ban only applies to one utility area, the “Long Island Power Authority”, and not the state of New York as a whole. |
| Oregon |
|
O.R.S. § 469.595
Before issuing a site certificate for a nuclear-fueled thermal power plant, the Energy Facility Siting Council must find that an adequate repository for the disposal of the high-level radioactive waste produced by the plant has been licensed to operate by the appropriate agency of the federal government. The repository must provide for the terminal disposition of such waste, with or without provision for retrieval for reprocessing. O.R.S. § 469.597 (1) Notwithstanding the provisions of ORS 469.370, if the Energy Facility Siting Council finds that the requirements of ORS 469.595 have been satisfied and proposes to issue a site certificate for a nuclear-fueled thermal power plant, the proposal shall be submitted to the electors of this state for their approval or rejection at the next available statewide general election. The procedures for submitting a proposal to the electors under this section shall conform, as nearly as possible to those for state measures, including but not limited to procedures for printing related material in the voters’ pamphlet. (2) A site certificate for a nuclear-fueled thermal power plant shall not be issued until the electors of this state have approved the issuance of the certificate at an election held pursuant to subsection (1) of this section. |
| Rhode Island |
|
Gen.Laws 1956, § 42-64-14.1
The final approval or denial of a project plan for the location and construction of an oil refinery or a nuclear plant within the state is hereby expressly reserved to the general assembly notwithstanding any general or public law or ordinance to the contrary, and exclusively within the jurisdiction of the general assembly. The exclusive jurisdiction is vested in the general assembly notwithstanding any other general, special, or public law to the contrary, including, but not limited to, those laws granting regulatory powers to the cities and towns, and any ordinances enacted pursuant to these laws. |
| Vermont |
|
30 V.S.A. § 248
(e)(1) Before a certificate of public good is issued for the construction of a nuclear energy generating plant within the state, the public service board shall obtain the approval of the general assembly and the assembly’s determination that the construction of the proposed facility will promote the general welfare. The public service board shall advise the general assembly of any petition submitted under this section for the construction of a nuclear energy generating plant within this state, by written notice delivered to the speaker of the house of representatives and to the president of the senate. The department of public service shall submit recommendations relating to the proposed plant, and shall make available to the general assembly all relevant material. The requirements of this subsection shall be in addition to the findings set forth in subsection (b) of this section. |
What do you think? Should nuclear power be banned?








R Dium says
Her in the UK we run a National Grid so power made by one company in one place feeds into the grid and can end up anywhere in the UK. Makes a mockery of ‘green’ tariffs as the end user has no control and no idea where their power is generated – it could be gas, nuclear, wind turbines or, horror, imported from mainland Europe (joke). Does the US run a similar system? Or does the local supplier use their own delivery system to the end user with no cross feeds from other generators? It’s all swings and roundabouts in the end to me, I’m only concerned with the cost.
Nuclear power? If we’re turning away from fossil fuels then Nuclear is the only viable base load option needed for when the wind isn’t turning the turbines. Apart from the grid infrastructure the UK energy system is a mess. All power is charged at the same price whether it’s from nuclear, gas or renewables.
Y.D. Robinson says
I agree that nuclear is the best source of energy if turning away from fossil fuels…way better than solar or wind.