GeoLawWatch: Tracking Weather & Climate Legislation

Tracking weather modification, cloud seeding, and geoengineering bills in real time across the US.

Bills Discovered in the Current Session

Automatically updated every day from LegiScan.

Bill # Details Effective Status
Alabama
HB248 Atmosphere; dispersion of items intended to affect weather, prohibited 1 Oct 2025 Introduced
Atmosphere; dispersion of items intended to affect weather, prohibited Last update
Tue 11 Feb 2025
Arizona
HB2056 Geoengineering; prohibition 21 Jul 2025 Missed crossover
Geoengineering; prohibition Last update
Tue 28 Jan 2025
  Note: A related bill, SB1432, addresses geoengineering with a narrower scope, focusing specifically on the prohibition of solar radiation management.  
SB1432 Prohibition; geoengineering 21 Jul 2025 Engrossed
Prohibition; geoengineering Last update
Tue 18 Mar 2025
  Note: A broader version of this proposal appears in HB2056, which includes public reporting requirements, enforcement mechanisms, and expanded definitions related to geoengineering.  
California
AB914 Air pollution: indirect sources: toxic air contaminants. Introduced
An act to amend Sections 39602.5 and 39666 of, to add Sections 39034.5 and 39607.2 to, and to add Article 7 (commencing with Section 39676) to Chapter 3.5 of Part 2 of Division 26 of, the Health and Safety Code, relating to air pollution.   Last update
Tue 29 Apr 2025
Connecticut
SB00417 An Act Concerning Permit Requirements For Cloud Seeding Activities In The State. Introduced
To protect public safety, health and the environment from any unreasonably risky weather modification activities. Last update
Fri 10 Jan 2025
SB00067 An Act Requiring The Disclosure Of Chemicals Disbursed In The Air By The Federal Government And Weather Engineering Activities. Introduced
To require the disclosure of chemical releases by the federal government. Last update
Wed 8 Jan 2025
Florida
H0477 Geoengineering and Weather Modification Activities 1 Jul 2025 Introduced
Repeals, revises, & creates provisions of weather modification law relating to duties of DEP, prohibited activities, civil penalties, reporting & investigation of violations, & funding expenditures.   Last update
Wed 30 Apr 2025
  Note: A companion bill, SB 56, was introduced in the Senate with similar objectives. While both propose prohibiting geoengineering and repealing weather modification laws, SB 56 outlines specific repealed provisions and follows a parallel legislative path.  
S0056 Geoengineering and Weather Modification Activities 1 Jul 2025 Enrolled
Repealing provisions relating to the definitions, purpose, licensing requirements, applications, proof of financial responsibility requirements, license issuance and discipline provisions, publication of notice of intention to operate requirements, required contents of the notice of intention, publication of the notice of intention requirements, proof of publication requirements, record and reports of operations requirements, provision of emergency licenses, and suspension or revocation of licenses, respectively, of the weather modification law; prohibiting certain acts intended to affect the temperature, the weather, or the intensity of sunlight within the atmosphere of this state; requiring an operator of public infrastructure to report certain information monthly to the Department of Transportation, etc.   Last update
Wed 30 Apr 2025
  Note: A companion bill, HB 477, was introduced in the House. It shares the same core goals but places added emphasis on increased civil penalties for violations of weather modification laws.  
Georgia
HR513 Congress; investigate dispersion of chemicals into the sky by aircraft; encourage In recess until 2026
A RESOLUTION encouraging the United States Congress to investigate the dispersion of chemicals into the sky by aircraft, so as to understand the effects of such dispersion on air, soil, and water quality in the State of Georgia; and for other purposes. Last update
Tue 11 Mar 2025
Idaho
S1064 Amends and adds to existing law to revise provisions regarding cloud seeding. 1 Jul 2025 Sine die
CLOUD SEEDING -- Amends and adds to existing law to revise provisions regarding cloud seeding. Last update
Thu 20 Mar 2025
S1065 Amends, repeals, and adds to existing law to prohibit unauthorized weather modification activities and to provide penalties, enforcement, and exceptions. 1 Jul 2025 Sine die
WEATHER MODIFICATION -- Amends, repeals, and adds to existing law to prohibit unauthorized weather modification activities and to provide penalties, enforcement, and exceptions. Last update
Fri 7 Feb 2025
  Note: While S1167 also addresses weather modification, it solely repeals existing provisions. S1065, by contrast, establishes a new legal framework with enforcement mechanisms, penalties, and defined exceptions for unauthorized weather modification activities.  
S1167 Repeals existing law to remove provisions regarding weather modification. 1 Jul 2025 Passed
WEATHER MODIFICATION DISTRICTS -- Repeals existing law to remove provisions regarding weather modification. Last update
Tue 1 Apr 2025
  Note: S1065 covers similar subject matter but takes a regulatory approach—prohibiting unauthorized weather modification while establishing penalties and exceptions. S1167 focuses solely on repealing existing provisions without introducing new regulatory language.  
Illinois
SB1426 WEATHER MODIFICATION-SEEDING Immediately Missed crossover, resume 2026
Creates the Weather Modification Act. Provides that any form of weather modification shall not be allowed in the State, including the seeding of clouds by plane or ground. Defines "seeding" as a type of weather modification that aims to change the amount or type of precipitation that falls from clouds. Effective immediately. Last update
Thu 13 Mar 2025
Indiana
HB1335 Weather control. Sine die
Weather control. Prohibits a person who has the intent of affecting the intensity of sunlight, temperature, or weather from discharging a chemical or apparatus into the atmosphere, except in certain circumstances. Establishes that a violation is a Class B misdemeanor. Last update
Mon 13 Jan 2025
  Note: While SB0364 addresses similar activities, it classifies violations as a Class A misdemeanor, indicating a more severe penalty compared to HB1335's classification.  
SB0364 Weather and the environment. 1 Jul 2025 Sine die
Weather and the environment. Prohibits a person who has the intent of affecting the intensity of sunlight, temperature, or weather from discharging a chemical or apparatus into the atmosphere, except in certain circumstances. Provides that a violation is a Class A misdemeanor. Last update
Thu 30 Jan 2025
  Note: In contrast, HB1335 classifies such violations as a Class B misdemeanor, reflecting a less severe penalty compared to SB0364's classification.  
Iowa
HF191 A bill for an act relating to the intentional emission of air contaminants into the atmosphere.(See HF 927.) Superseded
A bill for an act relating to the intentional emission of air contaminants into the atmosphere.(See HF 927.) Last update
Wed 12 Mar 2025
  Note: Iowa renumbers bills during the legislative process. New bill numbers are assigned as the measure progresses.  
HF927 A bill for an act relating to the intentional emission of air contaminants into the atmosphere.(Formerly HF 191.) Introduced
A bill for an act relating to the intentional emission of air contaminants into the atmosphere.(Formerly HF 191.) Last update
Thu 3 Apr 2025
  Note: A related bill, SF 142, was introduced in the Senate, focusing specifically on prohibiting geoengineering activities, including cloud seeding and weather engineering, and establishes penalties for such actions.  
SF142 A bill for an act relating to the prohibition of geoengineering activities, providing penalties, and including effective date provisions. Introduced
A bill for an act relating to the prohibition of geoengineering activities, providing penalties, and including effective date provisions. Last update
Mon 3 Feb 2025
  Note: A related bill, HF 927, was introduced in the House, addressing the intentional emission of air contaminants into the atmosphere with the intent to affect weather or climate, and mandates the adoption of rules to enforce this prohibition.  
Kentucky
HB22 AN ACT relating to geoengineering. Sine die
Create new sections of KRS Chapter 512 to make findings and declarations regarding the dangers of atmospheric polluting activities and the Commonwealth's authority to prohibit geoengineering; define terms; make criminal atmospheric pollution a Class D felony; require that a person found guilty of criminal atmospheric pollution pay a civil penalty of not less than $500,000 in addition to all other penalties authorized by law; provide that each day that a person engages in criminal atmospheric pollution constitutes a separate offense; empower all peace officers of the Commonwealth to enforce the provisions of the section; require the arresting officer to issue a notice to the appropriate federal agency that those activities cannot be lawfully carried out in the Commonwealth. Last update
Tue 4 Feb 2025
  Note: A companion bill, SB 62, was introduced in the Senate with identical language and intent regarding the prohibition of geoengineering activities in the Commonwealth.  
SB62 AN ACT relating to geoengineering. Sine die
Create new sections of KRS Chapter 512 to make findings and declarations regarding the dangers of atmospheric polluting activities and the Commonwealth's authority to prohibit geoengineering; define terms; make criminal atmospheric pollution a Class D felony; require that a person found guilty of criminal atmospheric pollution pay a civil penalty of not less than $500,000 in addition to all other penalties authorized by law; provide that each day that a person engages in criminal atmospheric pollution constitutes a separate offense; empower all peace officers of the Commonwealth to enforce the provisions of the section; require the arresting officer to issue a notice to the appropriate federal agency that those activities cannot be lawfully carried out in the Commonwealth. Last update
Fri 10 Jan 2025
  Note: A companion bill, HB 22, was introduced in the House with the same provisions addressing atmospheric pollution and geoengineering enforcement.  
Louisiana
SB46 To prohibit the intentional release, or dispersion of chemicals into the environment of this state with the express purpose of affecting temperature. (8/1/25) 1 Aug 2025 Engrossed
To prohibit the intentional release, or dispersion of chemicals into the environment of this state with the express purpose of affecting temperature. (8/1/25)   Last update
Tue 29 Apr 2025
Maine
LD499 An Act to Prohibit Geoengineering Dead
An Act to Prohibit Geoengineering   Last update
Wed 30 Apr 2025
  Note: This bill provides a broad prohibition on geoengineering but does not specify particular methods or penalties.  
LD825 An Act to Prohibit Geoengineering, Including the Use of Cloud Seeding, Weather Modification, Excessive Radio Waves and Microwave Radiation In recess until 2026
An Act to Prohibit Geoengineering, Including the Use of Cloud Seeding, Weather Modification, Excessive Radio Waves and Microwave Radiation Last update
Fri 21 Mar 2025
  Note: This bill expands on LD 499 by listing specific techniques and includes criminal penalties for violations.  
Massachusetts
H2369 To ensure cleaner air for communities overburdened by outdoor air pollution Introduced
Relative to communities with high cumulative exposure burdens to toxic outdoor air contaminants and criteria pollutants. Public Health. Last update
Thu 27 Feb 2025
Michigan
HB4304 Environmental protection: air pollution; dispersion of substances or objects into atmosphere; prohibit for purposes of affecting weather. Amends 1994 PA 451 (MCL 324.101 - 324.90106) by adding sec. 5514b. Introduced
Environmental protection: air pollution; dispersion of substances or objects into atmosphere; prohibit for purposes of affecting weather. Amends 1994 PA 451 (MCL 324.101 - 324.90106) by adding sec. 5514b. Last update
Thu 27 Mar 2025
Minnesota
HF2310 Prior law prohibiting weather modification reenacted, and criminal penalties provided. Introduced
Prior law prohibiting weather modification reenacted, and criminal penalties provided. Last update
Thu 13 Mar 2025
  Note: Reenacts prior law banning weather modification and, unlike SF 2462, adds criminal penalties for violations.  
SF2462 Prior law prohibiting weather modification reenactment Introduced
Prior law prohibiting weather modification reenactment Last update
Thu 13 Mar 2025
  Note: Reenacts the same prior ban as HF 2310 but does not include the criminal penalties found in that bill.  
Mississippi
HB788 Air quality; prohibit injection of chemicals into atmosphere with purpose of affecting the weather. Died In Committee
An Act To Prohibit The Intentional Injection, Release, Or Dispersion Of Chemicals Within The Borders Of The State Of Mississippi Into The Atmosphere With The Express Purpose Of Affecting Temperature, Weather, Or The Intensity Of The Sunlight; To Bring Forward Sections 49-17-5, 49-17-19, 49-17-25 And 49-17-36, Mississippi Code Of 1972, Which Relate To Pollution Of Waters, Streams, And Air Within The State, For Purposes Of Possible Amendment; To Amend Section 49-17-29, Mississippi Code Of 1972, To Make A Minor, Nonsubstantive Change; And For Related Purposes. Last update
Tue 4 Feb 2025
SB2005 Mississippi geoengineering ban; enact. Died In Committee
An Act To Declare Certain Legislative Findings Relating To Geoengineering; To Amend Section 49-17-5, Mississippi Code Of 1972, To Define The Term "geoengineering" Within The Mississippi Air And Water Pollution Control Law; To Amend Section 49-17-17, Mississippi Code Of 1972, To Give The Mississippi Air And Water Pollution Control Commission Authority To Issue, Modify Or Revoke Orders Related To Geoengineering; To Amend Section 49-17-19, Mississippi Code Of 1972, To Prohibit Geoengineering In Mississippi And To Create Penalties For Violations; And For Related Purposes. Last update
Tue 4 Feb 2025
SB2013 Environmental protection; prohibit chemtrails. Died In Committee
An Act To Declare Certain Legislative Findings Relating To Geoengineering; To Amend Section 49-17-5, Mississippi Code Of 1972, To Define The Term "geoengineering" Within The Mississippi Air And Water Pollution Control Law; To Amend Section 49-17-17, Mississippi Code Of 1972, To Give The Mississippi Air And Water Pollution Control Commission Authority To Issue, Modify Or Revoke Orders Related To Geoengineering; To Amend Section 49-17-19, Mississippi Code Of 1972, To Prohibit Geoengineering In Mississippi And To Create Penalties For Violations; And For Related Purposes. Last update
Tue 4 Feb 2025
Missouri
HB78 Grants the air conservation commission the authority to create standards and guidelines Introduced
Grants the air conservation commission the authority to create standards and guidelines Last update
Thu 9 Jan 2025
SB297 Establishes the Freedom to Farm Act and modifies provisions relating to the Governor's emergency powers and agricultural operations as nuisances Introduced
Establishes the Freedom to Farm Act and modifies provisions relating to the Governor's emergency powers and agricultural operations as nuisances Last update
Thu 13 Feb 2025
Montana
SB473 Prohibit weather modification. 1 Oct 2025 Failed House Vote
Prohibit weather modification. Last update
Thu 10 Apr 2025
Nevada
SB6 Makes an appropriation to the Desert Research Institute of the Nevada System of Higher Education to support the Nevada State Cloud Seeding Program. (BDR S-389) Introduced
AN ACT making an appropriation to the Desert Research Institute of the Nevada System of Higher Education to support the Nevada State Cloud Seeding Program; and providing other matters properly relating thereto. Last update
Mon 7 Apr 2025
New Hampshire
HB764 Prohibiting the intentional release of polluting emissions, including cloud seeding, weather modification, excessive electromagnetic radio frequency, and microwave radiation and making penalties for violation of such prohibition. Missed crossover, resume 2026
Prohibiting the intentional release of polluting emissions, including cloud seeding, weather modification, excessive electromagnetic radio frequency, and microwave radiation and making penalties for violation of such prohibition. Last update
Thu 13 Mar 2025
New Jersey
S4161 Prohibits release of certain substances into atmosphere for purposes of geoengineering. Immediately Introduced
Prohibits release of certain substances into atmosphere for purposes of geoengineering. Last update
Tue 25 Feb 2025
New York
A06416 Directs the department of environmental conservation to promulgate air quality standards for emissions of certain toxic air contaminants. Introduced
Directs the department of environmental conservation to promulgate air quality standards for emissions of certain toxic air contaminants.   Last update
Wed 30 Apr 2025
S04030 Directs the department of environmental conservation to promulgate air quality standards for emissions of certain toxic air contaminants. Engrossed
Directs the department of environmental conservation to promulgate air quality standards for emissions of certain toxic air contaminants. Last update
Tue 22 Apr 2025
A05476 Prohibits the intentional injection, release or dispersion, by any means, of chemicals, chemical compounds, substances or apparatus within the borders of this state into the atmosphere with the express purpose of affecting temperature, weather or the intensity of sunlight. Introduced
Prohibits the intentional injection, release or dispersion, by any means, of chemicals, chemical compounds, substances or apparatus within the borders of this state into the atmosphere with the express purpose of affecting temperature, weather or the intensity of sunlight. Last update
Fri 14 Feb 2025
North Carolina
H362 Clean Skies Geoengineering Ban Immediately Introduced
Clean Skies Geoengineering Ban Last update
Wed 12 Mar 2025
  Note: A sister bill, S485, is also in the system, focusing more on the prohibition of geoengineering practices.  
S485 Prohibit Geoengineering Immediately Introduced
Prohibit Geoengineering Last update
Wed 26 Mar 2025
  Note: A sister bill, H362, is also in the system, concentrating more on banning the intentional release of polluting emissions.​  
North Dakota
HB1514 Harmful atmospheric activity; and to provide a penalty. Failed House – Second Reading
A BILL for an Act to create and enact a new chapter to title 23.1 of the North Dakota Century Code, relating to harmful atmospheric activity; and to provide a penalty. Last update
Mon 24 Feb 2025
SB2106 Weather modification; and to provide a penalty. Failed House – Second Reading
A BILL for an Act to create and enact a new section to chapter 61-01 of the North Dakota Century Code, relating to weather modification operations in the state; to amend and reenact subsection 1 of section 37-17.1-11, and sections 58-03-07, 61-02.1-02.1, and 61-16.1-09 of the North Dakota Century Code, relating to weather modification; to repeal section 37-17.1-15 and chapter 61-04.1 of the North Dakota Century Code, relating to weather modification; and to provide a penalty. Last update
Fri 7 Feb 2025
Oklahoma
SB1021 Environment and natural resources; prohibiting certain actions relating to weather modification; providing for investigation. Effective date. 1 Nov 2025 Missed crossover, resume 2026
Environment and natural resources; prohibiting certain actions relating to weather modification; providing for investigation. Effective date. Last update
Mon 10 Mar 2025
  Note: This bill highlights the prohibition of specific weather modification activities and introduces provisions for the investigation of such actions, which is taken further in SB430 by fully repealing the Oklahoma Weather Modification Act and implementing a broader ban on chemical dispersion  
SB430 Environment; prohibiting intentional injection, release, or dispersion of chemicals, chemical compounds, substances, or apparatus in this state; repealing the Oklahoma Weather Modification Act. Effective date. 1 Nov 2025 Missed crossover, resume 2026
Environment; prohibiting intentional injection, release, or dispersion of chemicals, chemical compounds, substances, or apparatus in this state; repealing the Oklahoma Weather Modification Act. Effective date. Last update
Mon 10 Mar 2025
  Note: This bill highlights a comprehensive prohibition on the intentional injection or release of chemicals or substances into the atmosphere, and it repeals the existing Oklahoma Weather Modification Act, building upon the investigative and prohibitive groundwork laid out in SB1021.  
Pennsylvania
HB1167 Prohibiting solar radiation modification or sunlight reflection methods, cloud seeding and polluting atmospheric interventions within this Commonwealth; imposing duties on the Pennsylvania State Police and sheriffs; and imposing penalties. Immediately Introduced
An Act prohibiting solar radiation modification or sunlight reflection methods, cloud seeding and polluting atmospheric interventions within this Commonwealth; imposing duties on the Pennsylvania State Police and sheriffs; and imposing penalties. Last update
Mon 7 Apr 2025
SB508 Prohibiting solar radiation modification or sunlight reflection methods, cloud seeding and polluting atmospheric interventions within this Commonwealth; imposing duties on the Pennsylvania State Police and sheriffs; and imposing penalties. Immediately Introduced
An Act prohibiting solar radiation modification or sunlight reflection methods, cloud seeding and polluting atmospheric interventions within this Commonwealth; imposing duties on the Pennsylvania State Police and sheriffs; and imposing penalties. Last update
Fri 21 Mar 2025
Rhode Island
H5217 Establishes the Rhode Island Clean Air Preservation Act that establishes a regulatory process to prohibit polluting atmospheric experimentation. Immediately Introduced
HEALTH AND SAFETY -- THE RHODE ISLAND CLEAN AIR PRESERVATION ACT - Establishes the Rhode Island Clean Air Preservation Act that establishes a regulatory process to prohibit polluting atmospheric experimentation. Last update
Thu 6 Feb 2025
  Note: This bill highlights the establishment of the Rhode Island Clean Air Preservation Act, creating a regulatory process to prohibit polluting atmospheric experimentation, which is mirrored in S0405 as a companion bill introduced in the Senate.  
S0405 Establishes the Rhode Island Clean Air Preservation Act that establishes a regulatory process to prohibit polluting atmospheric experimentation. Immediately Introduced
HEALTH AND SAFETY -- THE RHODE ISLAND CLEAN AIR PRESERVATION ACT - Establishes the Rhode Island Clean Air Preservation Act that establishes a regulatory process to prohibit polluting atmospheric experimentation. Last update
Wed 26 Feb 2025
  Note: This bill highlights the Senate's version of the Rhode Island Clean Air Preservation Act, establishing the same regulatory framework as H5217, making it a companion bill reinforcing the legislative effort in both chambers.  
South Carolina
H3083 Air Quality Immediately Introduced
Amend The South Carolina Code Of Laws By Amending Section 48-1-110, Relating In Part To Unlawful Discharges Of Air Contaminants, So As To Prohibit The Emission Of Any Air Contaminant Whose Purpose Is To Affect Temperature, Weather, Or Sunlight Intensity. Last update
Tue 14 Jan 2025
  Note: This bill highlights the prohibition of weather modification operations without state approval, initiating the state's stance on regulating atmospheric experimentation, which is expanded upon in later bills such as H3915.  
H3915 South Carolina Clean Air Act Immediately Introduced
Amend The South Carolina Code Of Laws By Enacting The "south Carolina Clean Air Act"; By Amending Section 48-1-110, Relating In Part To Unlawful Discharges Of Air Contaminants, So As To Prohibit The Intentional Emission Of Any Air Contaminant Whose Purpose Is To Affect Temperature, Weather, Or Sunlight Intensity; To Establish Criminal Penalties; To Require The Department Of Environmental Services To Take Certain Actions, And For Other Purposes. Last update
Tue 25 Feb 2025
  Note: This bill highlights stricter prohibitions on releasing substances into the atmosphere, particularly targeting intentional atmospheric manipulation, building on the framework introduced in H3083.  
H4010 South Carolina Clean Air Act Immediately Introduced
Amend The South Carolina Code Of Laws By Enacting The "south Carolina Clean Air Act" By Amending Section 48-1-110, Relating In Part To Unlawful Discharges Of Air Contaminants, So As To Prohibit The Intentional Emission Of Any Air Contaminant Whose Purpose Is To Affect Temperature, Weather, Or Sunlight Intensity; To Require The Department Of Environmental Services To Take Certain Actions, And For Other Purposes. Last update
Thu 13 Feb 2025
  Note: This bill highlights requirements for informed consent and public notice before any atmospheric activities, introducing transparency measures that complement the restrictions in H3915 and H3083.  
S0110 Air Quality Immediately Introduced
Amend The South Carolina Code Of Laws By Amending Section 48-1-110, Relating In Part To Unlawful Discharges Of Air Contaminants, So As To Prohibit The Emission Of Any Air Contaminant Whose Purpose Is To Affect Temperature, Weather, Or Sunlight Intensity. Last update
Tue 14 Jan 2025
  Note: This bill highlights the Senate’s comprehensive approach by combining prohibitions, regulatory oversight, and enforcement provisions, effectively reinforcing and expanding upon the principles introduced in the three House bills.  
Tennessee
HB0899 AN ACT to amend Tennessee Code Annotated, Title 47, Chapter 18 and Title 68, Chapter 201, relative to weather modification. 1 Jul 2025 In recess until 2026
As introduced, makes it a violation of the Tennessee Consumer Protection Act of 1977 for a weather-related company to conduct certain weather modification activities. - Amends TCA Title 47, Chapter 18 and Title 68, Chapter 201. Last update
Fri 14 Feb 2025
  Note: This bill highlights a prohibition on the intentional injection, release, or dispersion of chemicals into the atmosphere for weather modification, and is mirrored by companion bill SB0723 in the Senate.  
HB1112 AN ACT to amend Tennessee Code Annotated, Title 58, Chapter 2 and Title 68, Chapter 201, relative to weather modification. 1 Jul 2025 In recess until 2026
As introduced, designates the intentional injection, release, or dispersion, by any means, of chemicals, chemical compounds, substances, or apparatus within the borders of this state into the atmosphere with the express purpose of affecting temperature, weather, or the intensity of the sunlight, or supplying or otherwise providing the chemicals, chemical compounds, substances, or apparatus required for the conduct, as a Class A misdemeanor; makes other changes related to investigations and enforcement related to weather modification. - Amends TCA Title 58, Chapter 2 and Title 68, Chapter 201. Last update
Wed 26 Mar 2025
  Note: This bill highlights the creation of an offense for atmospheric experimentation involving polluting substances without consent, which is carried forward in the Senate by companion bill SB1033.  
SB0723 AN ACT to amend Tennessee Code Annotated, Title 47, Chapter 18 and Title 68, Chapter 201, relative to weather modification. 1 Jul 2025 In recess until 2026
As introduced, makes it a violation of the Tennessee Consumer Protection Act of 1977 for a weather-related company to conduct certain weather modification activities. - Amends TCA Title 47, Chapter 18 and Title 68, Chapter 201. Last update
Fri 7 Mar 2025
  Note: This bill highlights the Senate version of HB0899, reinforcing the proposed ban on atmospheric chemical dispersion through parallel language and intent.  
SB1033 AN ACT to amend Tennessee Code Annotated, Title 58, Chapter 2 and Title 68, Chapter 201, relative to weather modification. 1 Jul 2025 Failed
As introduced, designates the intentional injection, release, or dispersion, by any means, of chemicals, chemical compounds, substances, or apparatus within the borders of this state into the atmosphere with the express purpose of affecting temperature, weather, or the intensity of the sunlight, or supplying or otherwise providing the chemicals, chemical compounds, substances, or apparatus required for the conduct, as a Class A misdemeanor; makes other changes related to investigations and enforcement related to weather modification. - Amends TCA Title 58, Chapter 2 and Title 68, Chapter 201. Last update
Wed 26 Mar 2025
  Note: This bill highlights the Senate companion to HB1112, maintaining identical provisions aimed at criminalizing unauthorized atmospheric experimentation.  
Texas
HB1382 Relating to a prohibition on weather modification and control; creating a criminal offense. 1 Sep 2025 Introduced
Relating to a prohibition on weather modification and control; creating a criminal offense. Last update
Tue 22 Apr 2025
  Note: This bill highlights a requirement for detailed public reporting and transparency in weather modification activities, serving as a regulatory approach compared to broader bans in later bills like HB3740.  
HB3740 Relating to chemicals and techniques used in weather modification and control. 1 Sep 2025 Introduced
Relating to chemicals and techniques used in weather modification and control. Last update
Wed 26 Mar 2025
  Note: This bill highlights a shift toward prohibiting the intentional release of substances for weather modification, building on the regulatory framework laid out in HB1382.  
SB1154 Relating to a prohibition on weather and climate modification activities by a governmental entity. Introduced
Relating to a prohibition on weather and climate modification activities by a governmental entity. Last update
Wed 2 Apr 2025
  Note: This bill highlights the Senate counterpart to HB3740, carrying forward the proposed prohibition on atmospheric experimentation with a focus on enforcement and public protection.  
Utah
SB0126 Airborne Chemicals Amendments Failed
Airborne Chemicals Amendments Last update
Fri 7 Mar 2025
Vermont
H0217 An act relating to prohibiting geoengineering Immediately In recess until 2026
An act relating to prohibiting geoengineering Last update
Thu 13 Feb 2025
West Virginia
HB2758 Prohibiting geo-engineering In recess until 2026
The purpose of this bill is to prohibit the injection, release, or dispersion, by any means, of chemicals, chemical compounds, substances, or apparatus within the borders of this state into the atmosphere with the express purpose of affecting temperature, weather, or the intensity of the sunlight Last update
Fri 21 Feb 2025
  Note: This bill highlights a ban on weather modification operations without state approval and introduces penalties for unauthorized atmospheric activities, laying the groundwork for stronger measures in HB3207.  
HB3207 Prohibition of geoengineering In recess until 2026
The purpose of this bill is to prohibit the injection, release, or dispersion, by any means, of chemicals, chemical compounds, substances, or apparatus within the borders of this state into the atmosphere with the express purpose of affecting temperature, weather, or the intensity of the sunlight. Last update
Thu 6 Mar 2025
  Note: This bill highlights broader prohibitions on the release of chemicals into the atmosphere for weather or climate modification purposes, expanding on the principles set out in HB2758.  
SB699 Protecting environment and humans from geo-engineering experiments In recess until 2026
The purpose of this bill is to protect the environment and humans from geoengineering experiments. Last update
Wed 5 Mar 2025
  Note: This bill highlights the Senate’s version of HB3207, carrying forward the same broad prohibitions on atmospheric experimentation and aligning with the House’s expanded approach.  
Wyoming
HB0208 Atmospheric geoengineering prohibition. Died in Committee
AN ACT relating to environmental quality; providing legislative findings; prohibiting atmospheric geoengineering as specified; requiring testing; providing penalties; making conforming amendments; specifying applicability; and providing for an effective date. Last update
Mon 3 Mar 2025
Introduced
Stalled / Superseded
Passed One Chamber
Passed Both Chambers
Enacted
Failed
Geoengineering
Cloud Seeding
Pollution
Unknown