EPA 2027 NOx NPRM Expected by Late June, OEMs Say
The agency is expected to leave in place a requirement that NOx emissions for heavy-duty trucks fall to 35 milligrams per horsepower-hour from 200 mg/hp-hr.
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The agency is expected to leave in place a requirement that NOx emissions for heavy-duty trucks fall to 35 milligrams per horsepower-hour from 200 mg/hp-hr.
The EPA is encouraging manufacturers to return to or adopt NOx sensor-based strategies to improve system robustness and reduce failures associated with DEF sensors, but OEMs are la...
Under the new framework, manufacturers must follow a tiered permitting process.
The EPA has proposed delaying stricter emissions standards for light-duty and Class 3 medium-duty vehicles until model year 2029.
Monitoring plan deadlines under New York's mandatory greenhouse gas (GHG) reporting program (Part 253) begin September 1, 2026, with first emissions data reports due June 1, 2027....
What Happened: The U.S. Environmental Protection Agency (EPA) recently proposed to delay Biden-era Tier 4 emissions standards for light- and medium-duty vehicles by two years, exte...
Experts examine EPA rulemaking, the A2L refrigerant transition, and state-level initiatives that are shaping the future of HVACR regulation.
The EPA has proposed a two-year delay on Tier 4 vehicle emission standards to model year 2029, a move the agency says will save consumers $1.7 billion amid slowing EV demand.
Carbon emissions reporting is becoming mandatory. But accounting is not the same as reducing, especially given the smoke and mirrors in some carbon footprint reporting
Key Takeaways As the federal government steps back from climate regulation, multiple states are expanding cap-and-trade or cap-and-invest programs to regulate greenhouse gas (GHG)...
In an era where environmental accountability is no longer optional, vehicle emissions have become a key concern for businesses and individuals alike. Read more: The Role of Exhaus...
Recent federal, state, and international policy developments have introduced regulatory uncertainty in the low-carbon maritime fuels sector, complicating investment in both fuel pr...
How to make European ports future-proof in the next review. The maritime sector accounts for 3% of the EU’s total CO2 emissions, amounting to 145.2 million tonnes of CO2 in 2024. U...
California has been a global pioneer on electric vehicles, and that leadership extends to zero-emission trucks. To address the pollution and disproportionate impacts on disadvantag...
On April 28, 2026, the New York State Department of Environmental Conservation (DEC) filed a Notice of Adoption to amend 6 NYCRR Part 617, DEC’s State Environmental Quality Review...
OEMs say innovation keeps diesel competitive in a zero-emission future.
By Naveen Athrappully The Environmental Protection Agency (EPA) has proposed a deregulatory action to delay compliance deadlines for Biden-era emission standards, in a bid to make...
Paris became a meeting point for global methane governance as regulators from nearly 30 countries and regional organisations gathered at the International Energy Agency headquarter...
On March 23, 2026, the California Air Resources Board (CARB) held a public workshop initiating the next phase of rulemaking under SB 253, California’s Climate Corporate Data Accoun...
RA requiring a comprehensive, through-life, integrity management approach to assure air system integrity.
The Environmental Protection Agency’s (EPA) proposed rollback of the Greenhouse Gas Reporting Program (GHGRP) including 40 CFR part 98 subpart RR (Subpart RR) created uncertainty w...
In a policy move upending federal climate change policy, the Environmental Protection Agency (EPA) published a rule on February 18, 2026, rescinding the 2009 endangerment finding a...
On Friday, CalRecycle announced that the permanent regulations for California’s Plastic Pollution Prevention and Packaging Producer Responsibility Act were approved....By: Ropes &a...
The Mercury and Air Toxics Standards (MATS) are federal air pollution regulations issued by the U.S. Environmental Protection Agency (EPA) under the Clean Air Act. Finalized in 201...
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