Environment (Air Quality)

in committee · United States · House Jan 21, 2026

HR 4218: CLEAR Act

The CLEAR Act (HR 4218) amends the Clean Air Act to streamline state compliance with air quality standards. It extends the review cycle for national air quality standards from five to ten years, requires states to consider economic feasibility alongside technical achievability when developing plans, and gives states up to three years (instead of two) to fix deficiencies before federal intervention. The bill also creates a new exception for wildfire mitigation actions like prescribed fires, allowing states to exclude wildfire-related air quality data from violation determinations. These changes primarily affect states responsible for implementing air quality plans under federal oversight.

Topics ✗ EnvironmentOpposes EnvironmentExtends review cycles, prioritizes economic feasibility over technical standards, and delays federal intervention - weakens Clean Air Act enforcement.90% confidence

Sub-Topics Air Quality Forestry

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in committee · United States · Senate Mar 12, 2025

S 996: Preserving Choice in Vehicle Purchases Act of 2025

This bill amends the Clean Air Act to prevent states from imposing standards that limit the sale or use of new internal combustion engine vehicles. It adds a new requirement that state standards must not directly or indirectly restrict such vehicles, and it prohibits the EPA from considering pre-2025 state standards as valid under existing waivers. The bill also requires the EPA to revoke certain existing waivers granted between January 2022 and the bill's enactment date if those waivers don't comply with the new standard. This directly affects states with their own vehicle emission rules (like California's ZEV program), limiting their ability to regulate internal combustion engine vehicles through EPA-approved standards.

Topics ✗ EnergyOpposes EnergyBill blocks state standards limiting internal combustion engine vehicles, weakening clean energy transition efforts by prioritizing fossil fuel-based transportation over emissions reductions.95% confidence ✗ EnvironmentOpposes EnvironmentBill blocks state emissions standards for vehicles, weakening Clean Air Act enforcement and opposing stricter environmental regulations.95% confidence ✗ TransportationOpposes TransportationBill blocks state regulations limiting internal combustion vehicles, opposing stricter emissions standards and hindering transition to sustainable transport.90% confidence

Sub-Topics Electric Vehicles Air Quality Electric Vehicles

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in committee · United States · Senate May 21, 2025

S 1841: Fuel Choice and Deregulation Act of 2025

This bill modifies Clean Air Act regulations to expand vehicle fuel options. It allows aftermarket conversions of older vehicles to run on alternative fuels (like natural gas or biodiesel) without being classified as "tampering," provided they meet engineering standards and include required labels. It also creates a new "fuel choice enabling manufacturer" category for companies with 50%+ of their fleet as vehicles designed for non-petroleum fuels (e.g., plug-in electric, flexible fuel, or hydrogen), granting them an 8 MPG bonus in fuel economy calculations. Additionally, the bill prohibits EPA from regulating biomass fuels under the Clean Air Act and adjusts ethanol blending requirements. These changes apply to vehicles manufactured for model year 2026 and later.

Topics ✓ EnergySupports EnergyBill removes regulatory barriers for alternative fuel vehicle conversions (including renewables) and creates incentives for non-petroleum fuel manufacturers, promoting renewable energy use and reducing petroleum dependence.95% confidence ✗ EnvironmentOpposes EnvironmentDeregulates Clean Air Act requirements by removing 'tampering' restrictions for vehicle conversions, prioritizing industry flexibility over environmental safeguards.85% confidence ✓ TransportationSupports TransportationExpands sustainable transportation options by enabling alternative fuel conversions without 'tampering' classification and creating incentives for non-petroleum fuel vehicles.92% confidence

Sub-Topics Electric Vehicles Oil & Gas Air Quality Electric Vehicles

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in committee · United States · Senate Sep 16, 2026

S 3135: Cold Weather Diesel Reliability Act of 2026

The Cold Weather Diesel Reliability Act of 2025 requires the Environmental Protection Agency (EPA) to revise Clean Air Act regulations to address diesel vehicle challenges in extreme cold. It allows diesel vehicle manufacturers to temporarily disable engine power reductions or shutdowns caused by emissions system faults when temperatures are at or below freezing, but only until temperatures rise above freezing. The bill also grants a year-round exemption from diesel exhaust fluid (DEF) system requirements for vehicles primarily operating north of 59°N latitude or in regions with prolonged freezing conditions that make DEF use impractical. This exemption prevents engine derates or shutdowns due to DEF system issues, ensuring critical transportation and emergency services remain functional. The bill does not change overall emissions standards but provides targeted relief for safety and operational needs in cold weather regions.

Topics ✗ EnvironmentOpposes EnvironmentBill allows temporary disabling of emissions systems in cold weather, weakening Clean Air Act enforcement by permitting increased pollution during temperature extremes.90% confidence ✓ TransportationSupports TransportationAllows temporary diesel emissions system exemptions in cold weather to prevent shutdowns, enhancing vehicle reliability and safety in transportation operations.95% confidence

Sub-Topics Air Quality

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in committee · United States · House Jun 24, 2025

HR 4117: Fuel Emissions Freedom Act

HR 4117, the Fuel Emissions Freedom Act, would repeal all federal and state fuel emissions standards for motor vehicles. It specifically targets Clean Air Act sections 202 and 209, as well as Corporate Average Fuel Economy (CAFE) standards under 49 U.S.C. 32902-32918, and nullifies all existing regulations under these provisions. The bill prohibits both the federal government and states from establishing or enforcing any future fuel emission standards for vehicles. This would directly affect automobile manufacturers, who would no longer need to comply with emissions regulations, and states, which would lose authority to set their own standards. The bill’s key mechanism is the complete removal of regulatory requirements related to vehicle emissions.

Topics ✗ EnergyOpposes EnergyRepeals federal/state vehicle emissions standards, weakening clean energy regulations and favoring fossil fuel use over emissions reductions.95% confidence ✗ EnvironmentOpposes EnvironmentRepeals federal/state vehicle emissions standards, removing Clean Air Act regulations and CAFE standards, directly weakening environmental protections against pollution.95% confidence ✗ TransportationOpposes TransportationRepeals all federal/state vehicle emissions standards, directly removing regulatory requirements under transportation policy (Clean Air Act, CAFE standards).95% confidence

Sub-Topics Air Quality

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in committee · United States · Senate Oct 23, 2025

S 3049: Fair Air Enforcement Act of 2025

This bill repeals Section 304 of the Clean Air Act, which established civil penalty provisions for violations. It removes the specific penalty framework for air pollution enforcement but does not create new regulations or directly affect any entities. The bill includes minor conforming amendments throughout the Clean Air Act to update references to the repealed section. This is a procedural change with no new policy implementation or direct impact on regulated parties.

Topics ✗ EnvironmentOpposes EnvironmentRepeals Clean Air Act penalty provisions, weakening enforcement mechanisms without new regulations or protections.90% confidence

Sub-Topics Air Quality

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in committee · United States · Senate Oct 23, 2025

S 3044: Wildfire Emissions Prevention Act of 2025

This bill amends the Clean Air Act to clarify how air quality data affected by wildfires and planned fire management is handled. It adds "prescribed fire" (a planned fire set for forest management) to the definition of "exceptional events" that states can use to explain temporary air quality spikes. States must now determine if wildfire or prescribed fire emissions qualify as exceptional events, and the EPA must review these state decisions within 180 days. This directly affects state air quality agencies, federal land managers, and wildfire management programs by changing how they report and handle air quality data during fire events.

Topics ✗ EnvironmentOpposes EnvironmentAllows states to exempt wildfire/prescribed fire emissions from Clean Air Act standards, weakening pollution control enforcement by enabling regulatory bypasses for managed forest fires.90% confidence

Sub-Topics Air Quality Forestry Public Lands

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in committee · United States · Senate Sep 9, 2025

S 2742: Protect Consumers from Reallocation Costs Act of 2025

This bill prohibits the Environmental Protection Agency from reallocating renewable fuel requirements from small refineries that have extended exemptions under the Clean Air Act. It directly affects small refineries with extended exemptions and the companies that would otherwise cover their renewable fuel obligations. The key provision requires the EPA to include gasoline or diesel refined by these exempt small refineries in the total fuel volume calculation for the year, preventing other entities from bearing their share of the renewable fuel mandate. This changes how renewable fuel obligations are calculated to protect consumers from potential cost increases tied to reallocated requirements.

Topics ✗ EnergyOpposes EnergyBill weakens renewable fuel standards by preventing EPA from reallocating obligations from exempt refineries, reducing renewable fuel mandates' enforcement.92% confidence ✗ EnvironmentOpposes EnvironmentBlocks EPA enforcement of renewable fuel requirements on exempt refineries, weakening Clean Air Act mandates and reducing renewable fuel adoption.90% confidence

Sub-Topics Air Quality

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in committee · United States · House Mar 27, 2025

HR 2165: Choice in Automobile Retail Sales Act of 2025

HR 2165, the Choice in Automobile Retail Sales Act of 2025, amends the Clean Air Act to prevent the Environmental Protection Agency (EPA) from writing future tailpipe emissions regulations that mandate specific vehicle technologies (like electric or hydrogen systems) or limit the availability of new vehicles based on engine type (e.g., gasoline vs. electric). The bill requires the EPA to update its regulations within 24 months to ensure new rules comply with these restrictions. This directly affects the EPA’s regulatory authority and automakers, as it limits how emissions standards can be structured. The law aims to preserve consumer choice in vehicle types by preventing regulations from favoring one engine technology over others.

Topics ✗ EnergyOpposes EnergyBlocks EPA from mandating electric/hydrogen vehicles under Clean Air Act, weakening clean energy standards for transportation.95% confidence ✗ EnvironmentOpposes EnvironmentPrevents EPA from mandating cleaner vehicle tech (electric/hydrogen) and limits emissions regulations, weakening environmental protections under Clean Air Act.95% confidence ✗ TechnologyOpposes TechnologyBill explicitly blocks EPA from mandating electric/hydrogen vehicle tech, directly limiting adoption of specific technologies per Clean Air Act amendment.95% confidence ✗ TransportationOpposes TransportationBill blocks EPA from mandating electric/hydrogen vehicle technologies, opposing regulatory shifts toward sustainable transportation infrastructure.95% confidence

Sub-Topics Air Quality

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in committee · United States · Senate Oct 14, 2025

S 3007: Diesel Truck Liberation Act of 2025

This bill prohibits all federal enforcement of emissions control requirements for diesel trucks. It directly affects diesel truck manufacturers, importers, distributors, and owners by eliminating all federal mandates (including under the Clean Air Act) for emissions control devices or onboard diagnostic systems on diesel vehicles. Key provisions repeal existing EPA regulations, prevent future rulemaking on emissions devices, and expunge past legal records related to non-compliance with emissions standards. The law would remove all federal legal barriers to modifying or removing emissions equipment from diesel engines.

Topics ✗ EnergyOpposes EnergyRepeals EPA emissions regulations for diesel trucks, removing federal mandates that promote cleaner energy standards and increase fossil fuel dependence.95% confidence ✗ EnvironmentOpposes EnvironmentEliminates federal emissions controls for diesel trucks, repeals EPA regulations, and prevents future emissions rulemaking under Clean Air Act.95% confidence ✗ TransportationOpposes TransportationRemoves federal emissions mandates for diesel trucks, weakening environmental and safety regulations under transportation policy.95% confidence

Sub-Topics Air Quality Freight

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