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State Air Regulations Can Go Above and Beyond National Standards 

Legal Planet

States and local air quality regulators have the legal authority to set particulate matter (PM), ozone, and nitrogen oxides (NOx) emissions standards and adopt regulations for these pollutants when they are already in attainment of the national ambient air quality standards ( NAAQS ) set by the U.S.

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Truck Loopholes 101 – When Emissions Regulations Don’t Match the Real World

Union of Concerned Scientists

The EPA is getting ready to finalize a critical regulation limiting emissions of smog-forming nitrogen oxide (NO X ) and soot (or particulate matter, PM 2.5 ) from new heavy-duty trucks. State regulations have strict inducements, so the degree to which EPA aligns with such parameters is important.

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California Ready to Take Giant Leap Toward Zero-Emission Trucks

Union of Concerned Scientists

In late April, California air regulators are poised to pass one of the most meaningful regulations to reduce pollution from commercial trucks, vans, and buses. The Advanced Clean Fleets (ACF) rule, which I’ve blogged about in detail before, will phase out fossil-fueled trucks over the next several decades. There are more than 1.8

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Has Gasoline Use in California Peaked?

Union of Concerned Scientists

However the long term drop in per person gasoline use is likely due to fuel economy and greenhouse gas standards that have made gasoline vehicles more efficient over the prior decades. These regulations (both state and federal) that UCS has advocated for have saved drivers money and reduced emissions.

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Delivery Vans are Going Electric: Where and Why

Union of Concerned Scientists

Medium- and heavy-duty vehicles (MHDVs), like the big rigs on our highways and the vans that deliver our packages, make up just over 1 in 10 of the vehicles on our roads, but are responsible for over half of ozone-forming nitrogen oxide pollution and lung-damaging fine particulate pollution from on-road vehicles.

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Clean Fleets Rule Slated to Deliver Healthier Air for Californians

Union of Concerned Scientists

Because last week, the California Air Resources Board (CARB) made history by unanimously adopting what is perhaps the most transformative clean trucks regulation ever considered—the Advanced Clean Fleets (ACF) rule. This rule creates the first-ever, economy-wide, zero-emission standard for large truck fleets.

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Proposed DEP Regulation Would Require 22% Of Passenger, Light Duty Vehicle Fleet Offered For Sale In PA Be Zero Emission Vehicles Starting In 2025

PA Environment Daily

On October 14, the Department of Environmental Protection presented a proposed regulation that would adopt California’s existing Zero Emission Vehicle Program that requires 22 percent of the new passenger and light duty vehicle fleets offered for sale in the state be zero emission vehicles starting in model year 2025.