California Air Resources Board

California is on the verge of running out of green HOV-lane stickers for solo-driving access.

It's no secret that our site closely follows every move of Tesla Motors. They have successfully launched an all-electric sports sedan to critical acclaim. They have a stimulating and opinionated Kyle Thibaut

What impact will the "over-compliance" rule – some would say loophole – in the California Air Resources Board's recent changes to the Zero-Emission Vehicle (ZEV) Mandate have? The short and obvious answer is that only time will tell, but one can make the ca

Ahh, the famous Commerce Clause of the U.S. Constitution (i.e., Article 1, Section 8). What doesn't it cover? According to U.S. District Judge Lawrence O'Neill, it covers the Low Carbon Fuel Standard (LCFS) rules put out by the California Air Resources Board (CARB) about the levels of carbon allowed in transportation fuel. CAR

Recently, we reported that Environment California is urging Governor Jerry Brown to put a plan in place that will result in 1 million clean vehicles on California roads by 2022. This goal has just gotten a little help with the California Air Resources Board's announcement that the 2011 budget for clean vehicle rebates will receive an additional $2 million from the California

The California Air Resources Board has given a green rating to the 2011 Chevrolet Volt, the grade atop the page being ULEV (Ultra Low Emissions Vehicle). That's below the SULEV and PZEV ratings of cars you might not expect to beat the Volt, such as the four-cylinder Honda Accord and Jonathon Ramsey

Earlier today, and very quietly, the California Air Resources Board (CARB) released all of the zero-emission vehicle (ZEV) credit balances. You can see the raw numbers for yourself here, but they might not make a whole lot of sense at first glance. If they don't, come back and we'll try and parse them together.

2008 Honda Civic Hybrid – Click above for high-res image gallery

A year ago, the White House led the effort to get automakers' Corporate Average Fuel Economy to 35.5 miles per gallon by 2016. Although the number was eventually pegged at 34.1 mpg, it will actually be slightly lower because of other non-automotive credits that will be a

Biodiesel is still in limbo here in the U.S., but even if we never return to large scale production, at least diesel vehicles can continue to get cleaner on their own. The latest example of cleaner diesel tech news comes from Finland, where Pegasor Ltd. has introduced a new, compact, continuously operating and real-time Nik Bristow

The California Air Resources Board (CARB) has announced that the "cool cars" regulation has been canceled. "Cool cars" tried to reduce the need for air conditioning in new vehicles by mandating that their windows reflect or absorb a portion of the heat-producing rays from the sun.