The US Environmental Protection Agency (EPA) announced a proposal to to revise the primary (health-based) annual PM2.5 standard from its current level of 12.0 µg/m3 to within the range of 9.0 to 10.0 µg/m3. EPA is taking comment on the full range (between 8 and 11 10 µg/m3) included in... Read more →


Piedmont Lithium (earlier post) has amended its earlier agreement with Tesla to supply the US automaker with spodumene concentrate (SC6) from North American Lithium (NAL). North American Lithium is a brownfield open pit mining and spodumene concentrator operation in Québec owned 75% by Australia-based Sayona Mining and 25% by Piedmont.... Read more →


Final California deadline for upgrading heavy-duty diesels to MY2010 or newer engines

California’s Truck and Bus regulation (earlier post) has been in effect since December 2008, with the purpose of reducing emissions of diesel particulate matter (PM), oxides of nitrogen (NOx) and other criteria pollutants from in-use diesel-fueled vehicles. Under the regulation, 1 January 2023 marked the final deadline to replace or... Read more →


The US Environmental Protection Agency (EPA) finalized more stringent NOx emissions limits for model year 2027 and later heavy-duty engines and vehicles. Relative to current rules, the new standards are more than 80% stronger, increase useful life of governed vehicles by 1.5–2.5 times, and will yield emissions warranties that are... Read more →


The Mayor of London, Sadiq Khan, will expand the Ultra Low Emission Zone (ULEZ) (earlier post) London-wide. The expansion will come into effect on 29 August 2023 and will operate across all London boroughs up to the existing Low Emission Zone boundary for large and heavy vehicles. On 8 April... Read more →


The European Commission presented its proposal for Euro 7 standards to reduce air pollution from new motor vehicles sold in the EU. While CO2 emission rules will drive the deployment of zero-emission vehicles, it is important to ensure that all vehicles on European roads are much cleaner, the EC said.... Read more →


EPA to develop options to reduce NOx and PM from locomotives further

The US Environmental Protection Agency (EPA) is responding to petitions from the California Air Resources Board, the San Joaquin Valley Air Pollution Control District, and the California Air Pollution Control Officers Association to address harmful nitrogen oxide (NOx) and particulate matter (PM) emissions from locomotives. EPA adopted its first regulation... Read more →


In an open-access report in the journal Environmental Pollution, researchers from UCLA and the University of Chicago estimate that California’s wildfire carbon dioxide equivalent (CO2e) emissions from 2020 (~127 mmt CO2e ) are approximately two times higher than California’s total greenhouse gas (GHG) emission reductions since 2003. Without considering future... Read more →


CARB holding public hearing on Advanced Clean Fleets Regulation; all medium- and heavy-duty vehicle sales to be ZEV by 2040

The California Air Resources Board (CARB) will conduct a public hearing on 27 October in Sacramento to consider the proposed Advanced Clean Fleets (ACF) regulation. The proposed regulation would set a clear end date for combustion-powered new vehicle sales in California by requiring all new medium- and heavy-duty vehicle sales... Read more →


CARB settles with FCA for $5.6M for violations of air quality regulations on certain gasoline engines

The California Air Resources Board (CARB) reached a settlement agreement with FCA US LLC (FCA) of Auburn Hills, Mich. for $5,601,090 for violations of CARB’s air quality regulations. This is the second enforcement action against FCA in the past four years. The FCA vehicles and model years (MY) involved in... Read more →


EPA trying to streamline toxic risk assessment for new mixed metal oxides with applications in batteries, EVs

The US Environmental Protection Agency (EPA) announced a new effort under the Toxic Substances Control Act (TSCA) to implement a streamlined and efficient process under the New Chemicals Program to assess risk and apply mitigation measures, as appropriate, for new chemicals with applications in batteries, electric vehicles, semiconductors and renewable... Read more →


NY Governor orders regulatory action to require all LDVs sold in state to be zero-emissions by 2035

New York Governor Kathy Hochul directed the State Department of Environmental Conservation to take major regulatory action that will require all new passenger cars, pickup trucks, and SUVs sold in New York State to be zero emissions by 2035. This regulatory step will be complemented by new and ongoing investments... Read more →


The California Air Resources Board today approved a statewide plan for attaining the federal health-based standard for ozone, typically experienced as smog. The 2022 State Implementation Plan Strategy identifies the state’s control strategy for meeting the federal 70 parts per billion, 8-hour ozone standard over the next 15 years. The... Read more →


GM and EDF announce recommended principles on EPA emissions standards for Model Year 2027 and beyond

General Motors and Environmental Defense Fund announced a set of recommendations that seek to accelerate a zero-emissions, all-electric future for passenger vehicles in model year 2027 and beyond. The recommendations were jointly developed by GM and EDF to support the next tier of EPA clean car standards. GM and EDF... Read more →


CA lawmakers pass AB 1322; 20% usage of sustainable fuels in the aviation sector by 2030

The California legislature has passed AB 1322 (R. Rivas); the bill requires the California Air Resources Board to develop an incentives-based plan to promote the use of sustainable aviation fuel (SAF) and other alternatives to jet fuel to reduce the impact of commercial aviation on climate change. Specifically, this bill... Read more →


The California Air Resources Board (CARB) recently previewed the Heavy-Duty Inspection and Maintenance Program (HD I/M), which is due to begin phasing in on 1 Jan 2023 (earlier post), at an enforcement truck event held at the Port of Los Angeles. CARB used the event, where more than 1,200 trucks... Read more →


The California Air Resources Board approved the Advanced Clean Cars II (ACC II) rule. The rule establishes a year-by-year roadmap so that by 2035 100% of new cars and light trucks sold in California will be zero-emission vehicles (ZEVs) and plug-in hybrid electric vehicles (PHEVs). The ACC program was first... Read more →


Inflation Reduction Act mandates escalating battery critical mineral requirements to qualify for EV tax credit

The Inflation Reduction Act, which the Senate passed last week, revamps the electric vehicle Federal tax credit of $7,500 (earlier post). Among the changes are an extension of the tax credit through 2032, the removal of the unit-sales cap of 200,000 per OEM, and a new mandate for qualified cars... Read more →


Fisker finesses the Inflation Reduction Act tax credit changes with binding sales contract; “Transition Rule”

The US Senate has passed the Inflation Reduction Act, with nearly $400 billion in funding over 10 years for climate- and energy-related programs; among the myriad provisions in the 755-page bill are changes to the electric vehicle Federal tax credit of $7,500. The bill renews the credit starting in January... Read more →


CARB releases results of multi-year E15 study; multiple air quality benefits with slight reduction in fuel economy

The California Air Resources Board (CARB) has released the results of a multiyear study evaluating exhaust emissions from the use of California Reformulated Gasoline (CaRFG) that contains 15 volume percent ethanol (E15). The study was performed by a team from the University of California at Riverside (UCR) Bourns College of... Read more →


CARB launches $25M pilot program to help small trucking fleets transition to zero-emission technologies

The California Air Resources Board will launch a new pilot program that aims to help small trucking fleets make the transition to zero-emission technologies. The Innovative Small e-Fleet pilot will focus on privately owned and nonprofit trucking fleets with 20 or fewer trucks and less than $15 million in annual... Read more →


FHWA proposes rulemaking for states and municipalities to track and reduce GHG emissions

The US Department of Transportation’s Federal Highway Administration (FHWA) announced a Notice of Proposed Rulemaking (NPRM) for states and municipalities to track and reduce greenhouse gas (GHG) emissions. The new rule would: Establish a national framework for tracking state-by-state progress by adding a new GHG performance management measure to the... Read more →


Supreme Court curbs EPA authority to regulate CO2 from power plants

The Supreme Court of the US (SCOTUS) has ruled in West Virginia v. EPA that the EPA lacks the authority to set emission standards for power plants so strict as to force a shift of power generation from fossil fuels. The opinion (6-3) applied the “major questions doctrine”, which requires... Read more →


President Biden called on Congress to suspend the federal gas tax for the next 90 days, through the busy summer driving season—18 cents per gallon for gasoline and 24 cents per gallon for diesel. He also called on states to suspend their state gas taxes as well or to find... Read more →


FHWA issues NPRM on standards and requirements for national EV charging network

The US Department of Transportation’s Federal Highway Administration announced a Notice of Proposed Rulemaking (NPRM) on proposed minimum standards and requirements for projects funded under the National Electric Vehicle Infrastructure (NEVI) Formula Program. The proposed rule would establish the groundwork for states to build federally-funded charging station projects across a... Read more →


EPA announces final RFS volumes for 2021 and 2022

The US Environmental Protection Agency (EPA) took action on Friday pursuant to a consent decree agreement that requires EPA to finalize RFS volumes for 2021 and 2022 no later than 3 June 2022 (Friday). In the final volumes, EPA adjusted the final biofuel volumes for 2021 to reflect updated data... Read more →


Euro Parliament committee backs revised CO2 standards for cars and vans; zero-emission road mobility by 2035

The European Parliament Committee on the Environment, Public Health and Food Safety (ENVI) adopted this week, with 46 votes in favor, 40 against and two abstentions, a position on proposed rules to revise the CO2 emission performance standards for new cars and vans in line with the EU’s increased climate... Read more →


California’s Hybrid and Zero-Emission Truck and Bus Voucher Incentive Project (HVIP), launched in 2009, accelerates commercialization of zero-emission and near-zero-emission technologies by providing point-of-sale vouchers to make advanced vehicles more affordable. Of the 730 zero-emission trucks on the road in California as of January 2022, more than 60% are directly... Read more →


CARB releases 2022 draft Scoping Plan update

The California Air Resources Board (CARB) has released the draft 2022 Climate Change Scoping Plan—the third update to the state’s initial 2008 Scoping Plan. It identifies a path to achieve carbon neutrality over the next two decades while also assessing the progress the State is making towards reducing its greenhouse... Read more →


SwRI CAT-DEF reduces heavy-duty diesel emissions to meet CARB 2027 NOx requirements

Southwest Research Institute (SwRI) demonstrated the effectiveness of its patented and award-winning CAT-DEF technology during the WCX World Congress Experience in Detroit in April. CAT-DEF—Catalyzed Diesel Exhaust Fluid—is an SwRI-developed catalyst- and surfactant-modified diesel exhaust fluid (DEF) solution. The internally funded advancement successfully reduced heavy-duty diesel engine nitrogen oxide (NOx)... Read more →


New Mexico adopts Clean Cars Rule

The New Mexico Environmental Improvement Board (EIB) and the Albuquerque-Bernalillo County Air Quality Control Board (AQCB) have each adopted the Clean Car Rule after a joint public hearing. Their independent approval of the Clean Car Rule allows California’s Advanced Clean Cars to be implemented statewide in New Mexico beginning 1... Read more →


A recent study by leading UK-based independent emissions testing company Emissions Analytics tested four apparently similar pairs of gasoline-fueled vehicles between the US (without gasoline particulate filters (GPFs)) and Europe (with GPFs). The US vehicles were tested in Michigan, and the European vehicles in the UK. The vehicles were: 3.0l... Read more →


EPA issues emergency fuel waiver for E15 sales

The US Environmental Protection Agency (EPA) is issuing an emergency fuel waiver to allow E15 gasoline to be sold during the summer driving season. (Earlier post.) The Clean Air Act (CAA) requires the use of low-volatility gasoline during the summer months in order to limit the formation of ozone pollution.... Read more →


California “gasoline superuser” bill advances; focusing ZEV incentives on reducing gasoline use

The California Assembly Transportation Committee passed a landmark ZEV incentive reform bill, AB 2816, by a 6-2 vote on Monday. The bill, introduced by Assemblymember Phil Ting (D-San Francisco), directs the California Air Resources Board (CARB) to maximize the climate and equity impacts of the state’s Zero Emission Vehicle (ZEV)... Read more →


EPA proposing RFS pathways for biofuels made from canola oil via hydrotreating; diesel, jet, naphtha, LPG, heating oil

The US Environmental Protection Agency (EPA) is proposing to approve Renewable Fuel Standard (RFS) pathways for certain biofuels that are produced from canola/rapeseed oil (earlier post) and is providing an opportunity for comment on the Agency’s lifecycle greenhouse gas (GHG) analysis of these pathways. With the approval, these fuel pathways... Read more →


NHTSA finalizes CAFE standards for Model Year 2024-2026; fleet average of 49 mpg by 2026

The US Department of Transportation’s National Highway Traffic Safety Administration (NHTSA) has finalized new Corporate Average Fuel Economy standards for MY 2024-2026. The new standards require an industry-wide fleet average of approximately 49 mpg for passenger cars and light trucks in model year 2026. Estimated Average of CAFE Levels (mpg)... Read more →


Washington state legislature approves $16.9B transportation package; targeting all new cars to be electric with MY 2030

The Washington State Legislature has passed the $16.9-billion, 16-year Move Ahead Washington transportation package. The package makes significant investments in reducing carbon emissions, preservation and maintenance, expanding multimodal options, public transportation and pedestrian safety. Notable investments include: $5.4 billion toward carbon reduction and multimodal expansion. $3 billion for maintenance and... Read more →


NHTSA finalizes first occupant protection safety standards for automated vehicles without driving controls

The US Department of Transportation’s National Highway Traffic Safety Administration has issued a first-of-its-kind final rule to ensure safety of occupants in automated vehicles. This rule updates the occupant protection Federal Motor Vehicle Safety Standards to account for vehicles that do not have the traditional manual controls associated with a... Read more →


EPA restores California’s authority to enforce greenhouse gas emission standards for cars and light trucks

The US Environmental Protection Agency (EPA) reinstated California’s authority under the Clean Air Act to implement its own greenhouse gas (GHG) emission standards and zero emission vehicle (ZEV) sales mandate. This means that the Clean Air Act (CAA) waiver granted to California to implement its Advanced Clean Car (ACC) program... Read more →


The US Environmental Protection Agency (EPA) is proposing new, stronger standards to promote clean air and reduce pollution from heavy-duty vehicles and engines starting in model year (MY) 2027. The proposed multi-pollutant rule would further reduce air pollution from heavy-duty engines and vehicles across the United States, including ozone and... Read more →


Delaware adopting California’s ZEV regulations

Delaware will join 13 other states in adopting California’s Zero Emission Vehicle (ZEV) regulations. Implementation of the ZEV regulations would not take place until model year 2027 (2026) to provide manufacturers time to adjust their inventories and prepare dealerships. Managed by the Delaware Department of Natural Resources and Environmental Control... Read more →


The California Air Resources Board (CARB) approved amendments to its current rule for Transport Refrigeration Units (TRUs) operating in the state. The 2022 amendments will require a variety of actions designed to reduce the pollution these units produce, and accelerate their transition to zero-emission technologies. The new requirements include the... Read more →


EPA settles with Tesla over Clean Air Act violations at Fremont plant; $275K penalty

The US Environmental Protection Agency (EPA) announced a settlement with Tesla Motors Inc. EPA found Clean Air Act violations at Tesla’s automobile manufacturing plant in Fremont, Calif. This settlement aligns with EPA’s National Compliance Initiative (NCI), Creating Cleaner Air for Communities by Reducing Excess Emissions of Harmful Pollutants. Under the... Read more →


Nature Materials editorial urges reconsideration of approach to battery regulation in Europe

An open-access editorial in the journal Nature Materials observes that the porposed new regulations for the European battery industry could actually make the electrification of transport harder. The European Union (EU) … is planning to require that all new cars sold from 2035 have zero carbon emissions—a bold and valuable... Read more →


Airlines, NGOs urge stronger law for clean jet fuels in Europe

Four major European air carriers—Air France-KLM, easyJet, Ryanair and Deutsche Post DHL Group—have joined forces with non-governmental organizations such as Transport & Environment in a “Fueling Flight Initiative” meant to help advance a key draft EU law. The legislative proposal from the European Commission would spur aviation’s take-up of renewable... Read more →


EPA to evaluate whether lead emissions from piston-engine aircraft endanger human health and welfare

The US Environmental Protection Agency (EPA) will evaluate whether emissions from piston-engine aircraft operating on leaded fuel contribute to air pollution that endangers public health and welfare. The agency plans to issue a proposal for public review and comment in 2022 and take final action in 2023. EPA has been... Read more →


Massachusetts files for immediate adoption of California Clean Trucks regulation

On 30 December 2021, the Massachusetts Department of Environmental Protection (MassDEP) announced that emergency regulations were filed with the Secretary of the Commonwealth’s office for the immediate adoption California’s Advanced Clean Trucks regulation (earlier post), which requires an increasing percentage of ZEV truck sales starting with Model Year 2025 and... Read more →


New Jersey adopts Advanced Clean Truck Rules

The New Jersey Department of Environmental Protection (NJDEP) announced the adoption of the Advanced Clean Truck and Fleet Reporting rules. The adoption of these rules establishes New Jersey as one of the first states to require phasing in of clean electric commercial trucks to replace diesel-powered trucks. The rules are... Read more →


The Environmental Protection Agency (EPA) is finalizing the federal greenhouse gas (GHG) emissions standards for passenger cars and light trucks for Model Years (MY) 2023 through 2026. The standards through 2026 also set the light-duty vehicle greenhouse gas (GHG) program on track to provide a strong launch point for the... Read more →


CARB adopts “smog-check” regulation for heavy-duty trucks and buses

The California Air Resources Board approved a smog-check regulation for medium- and heavy-duty trucks and buses. While these heavy-duty vehicles with a gross vehicle weight rating (GVWR) greater than 14,000 pounds comprise only 3% of all vehicles on California roads, they are responsible for more than 50% of nitrogen oxides... Read more →