Environment

Subcommittee

Subcommittee on Environment

All matters related to soil, air, noise and water contamination; emergency environmental response, both physical and cybersecurity. In particular, the subcommittee has jurisdiction over The Nuclear Waste Policy Act, The Clean Air Act, The Safe Drinking Water Act, Comprehensive Environmental Response Compensation and Liability Act – including Superfund and the Emergency Planning and Community Right to Know Act, The Solid Waste Disposal Act, The Toxic Substance Control Act and The Chemical Facility Anti-Terrorism Standards Program. Under the Clean Air Act, this subcommittee deals with National Ambient Air Quality Standards (NAAQS) for criteria pollutants; National Emissions Standards for Hazardous Air Pollutants (NESHAP) Standards; New Source Performance Standards (NSPS); Mobile Source Standards for vehicles, aircraft, fuels and fuel additives, including the Renewable Fuel Standard (RFS) and greenhouse gas emissions from motor vehicles. The subcommittee focuses on the regulation of solid, hazardous, and nuclear wastes, including mining, nuclear, oil, gas, and coal combustion waste.

Subcommittees News & Announcements


Mar 20, 2026
Press Release

Johnson, Scalise, Guthrie, Jordan, Babin: House Will Work to Implement National AI Framework

WASHINGTON, D.C.  – Today, Congressman Brett Guthrie (KY-02), Chairman of the Committee on Energy and Commerce, Speaker Mike Johnson (LA-04), Majority Leader Steve Scalise (LA-01), Congressman Jim Jordan (OH-04), Chairman of the Committee on the Judiciary, and Congressman Brian Babin (TX-36), Chairman of the Committee on Science, Space, and Technology, issued the following statement after the White House released a  federal AI framework . “AI has begun to demonstrate its potential to improve Americans’ lives. To ensure we continue to harness its potential and beat China in the global AI race, Congress must take action. Today, the Trump Administration took a critical step in releasing a framework that gives Congress a roadmap to pursue legislation that provides innovators with much-needed certainty, while protecting consumers and prioritizing kids’ online safety. House Republicans look forward to working across the aisle to enact a national framework that unleashes the full potential of AI, cements the U.S. as the global leader, and provides important protections for American families.” ###



Mar 19, 2026
Press Release

Chairmen Guthrie, Joyce, and Palmer Expand Investigation into Potomac Interceptor Collapse

WASHINGTON, D.C.  – Today, Congressman Brett Guthrie (KY-02), Chairman of the House Committee on Energy and Commerce, Congressman John Joyce, M.D. (PA-13), Chairman of the Subcommittee on Oversight and Investigations, and Congressman Gary Palmer (AL-06), Chairman of the Subcommittee on Environment, sent a letter to Garney Companies, Inc., a contractor that was under consideration for an Emergency Master Service Agreement with DC Water to rehabilitate the Potomac Interceptor (PI) sewer line prior to its collapse on January 19, 2026.  “The collapsed portion of DC Water’s PI sewer line has resulted in what has been called ‘one of the largest sewage spills in U.S. history.’ The consequences of this spill continue to be evaluated, and the Committee remains concerned by the potential impacts to public health, safe drinking water, the environment, interstate commerce, and tourism,”  said Chairmen Guthrie, Joyce, and Palmer.  “The resilience of our wastewater infrastructure systems remains critical, and the Committee aims to understand what risks were determined prior to this incident and how future incidents may be prevented.”   Key excerpt from the letter:   “As part of its investigation, the Committee continues to obtain information from entities and individuals with knowledge that is relevant to this incident. According to the DC Water and Sewer Authority Board of Directors, Garney Companies, Inc (Garney) was under consideration for a potential Emergency Master Service Agreement for the PI rehabilitation, which was anticipated to begin on May 15, 2025. However, the contract was never finalized. The Committee is requesting information related to this contract and any additional information that your company may have related to the site of the PI wastewater collapse prior to the incident.   “It is the Committee’s understanding that the potential agreement between DC Water and   Garney would have covered a period of two years. The purpose of this contract was stated to   ‘[p]rovide program management, preconstruction and emergency construction services to   rehabilitate and provide redundancy for the Potomac Interceptor.’ Additionally, the project   scope included a number of repairs and upgrades to improve the reliability of this critical   Infrastructure.”   CLICK HERE   to read the full letter.  Background:   The Committee launched its investigation into the Potomac Interceptor collapse on February 20, 2026. Today’s letter to Garney represents the next step in uncovering what went wrong.   DC Water was considering an Emergency Master Service Agreement with Garney to “provide program management, preconstruction and emergency construction services to rehabilitate and provide redundancy” for the PI. That contract was anticipated to begin May 15, 2025, but the contract was never finalized.   The January 19, 2026, collapse of the PI sewer line has been called one of the largest sewage spills in U.S. history, with consequences for public health, safe drinking water, the environment, interstate commerce, and tourism still being evaluated.   The Committee is requesting all documents and communications related to Garney’s proposal, the unimplemented emergency contract, and information related to the collapse site prior to the incident—seeking to understand what risks were known beforehand and how future incidents can be prevented.  ###



Mar 13, 2026
Environment

Chairman Guthrie Applauds EPA Decision to Address Regulations that Targeted Life-Saving Medical Devices

WASHINGTON, D.C. – Today, Congressman Brett Guthrie (KY-02), Chairman of the House Committee on Energy and Commerce, issued the following statement following Environmental Protection Agency (EPA) Administrator Zeldin’s announcement that the agency proposed amending a Biden-Harris Administration regulation that weaponized air emissions standards to halt the production and use of ethylene oxide (EtO) to sterilize medical equipment. “Today’s EPA announcement is a victory for commonsense policies that safeguard patients and put an end to the overreach of the Biden-Harris Administration,” said Chairman Guthrie. “ The burdensome ethylene oxide rule threatened to shutter sterilization facilities and disrupt American medical supply chains that hospitals and providers rely on every day to safely treat patients. By proposing an amendment to this misguided regulation, EPA Administrator Zeldin is working under the authority that Congress provided under the Clean Air Act to help ensure the medical community maintains access to a safe and reliable domestic supply of sterilized medical devices used in millions of procedures each year, while continuing to protect human health and the environment.”   BACKGROUND: Ethylene oxide (EtO) is used to sterilize approximately half of all medical devices sold in the United States, including surgical instruments, syringes, and implants. For many heat- and moisture-sensitive devices, there is currently no viable alternative sterilization method. The emission standards put in place by the Biden-Harris Administration threatens the ability for facilities to fully and safely sterilize essential medical equipment. In 2023, the Committee on Energy and Commerce, Subcommittee on Environment, Manufacturing, & Critical Materials held a hearing on the Biden-Harris Administration’s proposed rulemaking, where witnesses testified to how the proposal would significantly disrupt patient access to emergency care and threaten patient safety from hospital-born infections.


Subcommittee Members

(25)

Chairman Environment

Gary Palmer

R

Alabama – District 6

Vice Chairman Environment

Dan Crenshaw

R

Texas – District 2

Ranking Member Environment

Paul Tonko

D

New York – District 20

Bob Latta

R

Ohio – District 5

Morgan Griffith

R

Virginia – District 9

Buddy Carter

R

Georgia – District 1

John Joyce

R

Pennsylvania – District 13

Randy Weber

R

Texas – District 14

August Pfluger

R

Texas – District 11

Mariannette Miller-Meeks

R

Iowa – District 1

Laurel Lee

R

Florida – District 15

Nick Langworthy

R

New York – District 23

Gabe Evans

R

Colorado – District 8

Julie Fedorchak

R

North Dakota - At Large

Brett Guthrie

R

Kentucky – District 2

Jan Schakowsky

D

Illinois – District 9

Raul Ruiz

D

California – District 25

Scott Peters

D

California – District 50

Nanette Diaz Barragán

D

California – District 44

Darren Soto

D

Florida – District 9

Jake Auchincloss

D

Massachusetts – District 4

Troy Carter

D

Louisiana – District 2

Rob Menendez

D

New Jersey – District 8

Greg Landsman

D

Ohio – District 1

Frank Pallone

D

New Jersey – District 6

Recent Letters


Mar 19, 2026
Press Release

Chairmen Guthrie, Joyce, and Palmer Expand Investigation into Potomac Interceptor Collapse

WASHINGTON, D.C.  – Today, Congressman Brett Guthrie (KY-02), Chairman of the House Committee on Energy and Commerce, Congressman John Joyce, M.D. (PA-13), Chairman of the Subcommittee on Oversight and Investigations, and Congressman Gary Palmer (AL-06), Chairman of the Subcommittee on Environment, sent a letter to Garney Companies, Inc., a contractor that was under consideration for an Emergency Master Service Agreement with DC Water to rehabilitate the Potomac Interceptor (PI) sewer line prior to its collapse on January 19, 2026.  “The collapsed portion of DC Water’s PI sewer line has resulted in what has been called ‘one of the largest sewage spills in U.S. history.’ The consequences of this spill continue to be evaluated, and the Committee remains concerned by the potential impacts to public health, safe drinking water, the environment, interstate commerce, and tourism,”  said Chairmen Guthrie, Joyce, and Palmer.  “The resilience of our wastewater infrastructure systems remains critical, and the Committee aims to understand what risks were determined prior to this incident and how future incidents may be prevented.”   Key excerpt from the letter:   “As part of its investigation, the Committee continues to obtain information from entities and individuals with knowledge that is relevant to this incident. According to the DC Water and Sewer Authority Board of Directors, Garney Companies, Inc (Garney) was under consideration for a potential Emergency Master Service Agreement for the PI rehabilitation, which was anticipated to begin on May 15, 2025. However, the contract was never finalized. The Committee is requesting information related to this contract and any additional information that your company may have related to the site of the PI wastewater collapse prior to the incident.   “It is the Committee’s understanding that the potential agreement between DC Water and   Garney would have covered a period of two years. The purpose of this contract was stated to   ‘[p]rovide program management, preconstruction and emergency construction services to   rehabilitate and provide redundancy for the Potomac Interceptor.’ Additionally, the project   scope included a number of repairs and upgrades to improve the reliability of this critical   Infrastructure.”   CLICK HERE   to read the full letter.  Background:   The Committee launched its investigation into the Potomac Interceptor collapse on February 20, 2026. Today’s letter to Garney represents the next step in uncovering what went wrong.   DC Water was considering an Emergency Master Service Agreement with Garney to “provide program management, preconstruction and emergency construction services to rehabilitate and provide redundancy” for the PI. That contract was anticipated to begin May 15, 2025, but the contract was never finalized.   The January 19, 2026, collapse of the PI sewer line has been called one of the largest sewage spills in U.S. history, with consequences for public health, safe drinking water, the environment, interstate commerce, and tourism still being evaluated.   The Committee is requesting all documents and communications related to Garney’s proposal, the unimplemented emergency contract, and information related to the collapse site prior to the incident—seeking to understand what risks were known beforehand and how future incidents can be prevented.  ###



Nov 24, 2025
Press Release

Chairmen Guthrie, Joyce, and Palmer Investigate California Air Resources Board

WASHINGTON, D.C. – Today, Congressman Brett Guthrie (KY-02), Chairman of the House Committee on Energy and Commerce, Congressman John Joyce, M.D. (PA-13), Chairman of the Subcommittee on Oversight and Investigations, and Congressman Gary Palmer (AL-06), Chairman of the Subcommittee on Environment, sent a letter to Steven S. Cliff, Ph.D., Executive Officer of the California Air Resources Board (CARB), demanding answers and documents that the Committee previously requested from CARB on California’s refusal to follow the law and implement the Clean Air Act as written by Congress. The Committee also requested transcribed interviews of six individuals if CARB fails to provide the previously requested information by December 5, 2025.    “The Committee’s August 11, 2025, letter requested information and documents from the California Air Resources Board (CARB) about California’s enforcement of state vehicle emission standards that disregard recent Congressional actions to disapprove waivers of federal preemption under the Clean Air Act,” said Chairmen Guthrie, Joyce, and Palmer. “Unfortunately, CARB’s responses to date have been woefully inadequate and do not satisfy the Committee’s important oversight interests in this matter.” Key excerpt from the letter: “Clean Air Act section 209(a) preempts states from adopting or attempting to enforce any emissions control standard for new motor vehicles or engines, or any condition precedent to the initial retail sale, registration or inspection of such vehicle or engine. Under section 209(b), the U.S. Environmental Protection Agency (EPA) may waive federal preemption, allowing California to establish state motor vehicle emission standards. However, Congress passed with bipartisan support, and President Trump signed, three resolutions under the Congressional Review Act (CRA) disapproving three waivers of preemption that the Biden-Harris Administration previously granted.” “Due to CARB’s failure to make a good faith effort to provide the requested information and documents, the Committee requests transcribed interviews with the following individuals if CARB fails to provide the requested information and documents by December 5, 2025: Lauren Sanchez, CARB Chair (from September 2025 to present); Liane Randolph, Former CARB Chair (from December 2021 to September 2025); Steven Cliff, CARB Executive Officer; Shannon Dilley, CARB Chief Counsel; Christopher Grundler, CARB Deputy Executive Officer – Mobile Sources & Incentives; and Robin Lang, Division Chief, CARB Emissions Certification & Compliance Division. “The Committee requests that these transcribed interviews be completed no later than December 12, 2025.” Background: Since President Trump signed the three Congressional Review Act resolutions into law, revoking California’s ability to set state emission standards that mandate the sale of EVs, the state cannot move forward with plans to ban the sale of gas-powered vehicles. The Committee’s August 11, 2025, request sought answers about California’s apparent enforcement of the preempted standards and requested copies of related documents, such as internal guidance CARB provided to its staff, communications with other states, internal correspondence between CARB officials and the Governor’s Office and the Office of Attorney General, and other internal documents concerning CARB’s response to the disapproval of the waivers of federal preemption. The requested information and documents will help the Committee understand how California is implementing the Clean Air Act in light of the federal preemption of state emission standards, and whether the waiver authority in Clean Air Act section 209(b) should be eliminated or otherwise modified. CLICK HERE to read the full letter .



Nov 14, 2025
Environment

Chairmen Joyce and Palmer Send Letter to GAO Requesting Information on Alternatives to Critical Minerals Supply Chain

WASHINGTON, D.C. – Yesterday, Congressman John Joyce, M.D. (PA-13), Chairman of the Subcommittee on Oversight and Investigations, and Congressman Gary Palmer (AL-06), Chairman of the Subcommittee on Environment, sent a letter to Gene Dodaro, the Comptroller General of the Government Accountability Office (GAO), requesting an assessment of available or emerging technologies and materials that could be used to supplement critical minerals in semiconductors. “Critical minerals such as lithium, cobalt, and rare earth elements are essential for technologies used in many sectors of the economy, including energy, transportation, national defense, health care, and consumer electronics,” said Chairmen Joyce and Palmer . “These minerals are vulnerable to supply-chain disruptions for several reasons, including U.S. reliance on foreign sources, as well as the rapid growth in demand for critical minerals in the U.S. and abroad.” CLICK HERE to read the full letter. The letter asks the GAO to examine: The status of domestic technologies and supplemental materials, such as critical minerals found in mine waste, tailings, or reclaimed from end-of-life batteries and electronic waste, that can serve as substitutes for foreign-sourced critical minerals from non-allied nations needed for semiconductors and energy grid or power electronics, including impacts on material and product performance. Key technological challenges to the development or adoption of these domestic supplemental and materials to advance the diversification of U.S. critical mineral sources. BACKGROUND: In May, the Subcommittee on Oversight and Investigations held a hearing on ways to enhance our critical mineral supply chains. Energy and Commerce Committee Republicans are committed to strengthening our critical mineral supply chains and finding solutions to reduce our reliance on foreign sources, particularly when it comes to foreign adversaries like China. The Trump Administration has also worked hard to bolster these supply chains. Critical minerals are essential to American technologies and industries, and finding innovative domestic solutions that can contribute to our independence from non-allied nations is essential as we work to onshore American innovation and strengthen our national security. ###