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Clean Vehicle Tech Grows in Face of Shifting Regulations

Clean vehicle technology is advancing by leaps and bounds, but the direction it is moving is not always clear. A panel discussion at a recent alt fuel conference explored global trends in the space and the need for more certainty.

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Trump's EPA Orders Revision of Fuel Economy Rules

The Trump administration began the process of revising Obama-era fuel economy standards for vehicle manufacturers today, and announced it may revoke California's waiver that allows that state to set its own emissions rules.

Senators, Former EPA Chiefs Urge Agency to Drop Glider Reg Repeal

Two Democratic senators who oversee environmental issues sent a letter on March 12 to Environmental Protection Agency Administrator Scott Pruitt, urging him to reverse his November 2017 proposal to repeal air emission standards for glider kits.

Tennessee Tech Disavows Maligned Glider Kit Study Pending Review

Tennessee Tech's president has sent a letter to the U.S. Environmental Protection Agency urging that it not use the university's glider kit environmental impact study pending an investigation into the validity of its results.

Controversial Glider Kit Environmental Study Comes Under Fire

A controversial study commissioned by Fitzgerald Glider Kits that played a key role in a recent EPA proposal to rollback glider kit restrictions has come under fire by the faculty of the Tennessee university that conducted it.

EPA, CARB Certify Cummins Westport ISX12N Natural Gas Engine

Cummins Westport announced that the Environmental Protection Agency and California Air Resources Board have certified the 2018 ISX12N natural gas engine.

Environmental Group, State Attorneys Urge EPA to Keep Glider Kit GHG Rules

Environmental advocates, state attorneys general, and others are urging the Environmental Protection Agency to maintain the Obama administration’s ruling on glider kits under the Greenhouse Gas Phase 2 rules, calling the current efforts to reverse the rule at odds with the Clean Air Act.

Study: Cutting Methane Crucial to Future of Natural Gas Vehicles

Commercial fleets that converted from diesel to natural gas power could potentially accelerate the rate of climate change, finds one report. What is the industry doing to address the issue?

Commentary: What Happens to SmartWay With EPA Under Fire?

Looks like SmartWay’s days are numbered, if not those of the entire Environmental Protection Agency, but we shouldn't be especially sad if EPA budget cuts kill SmartWay. We have options, writes Rolf Lockwood, Executive Contributing Editor.

EPA Aims to Toss Away SmartWay

In his Passing Zone blog, HDT's David Cullen weighs in on an Environmental Protection Agency proposal to eliminate the agency's voluntary fuel-saving SmartWay program as part of budget cuts under the Trump administration.