Federal Rule Would Require Regional Emissions Reduction Targets

A rule shelved during the Trump administration would require states and metropolitan areas to set targets for reducing tailpipe emissions, but advocates say it doesn’t go far enough to mandate results.

1 minute read

August 18, 2022, 9:00 AM PDT

By Diana Ionescu @aworkoffiction


Close-up of car tailpipe emitting smoke

Deliris / Tailpipe emissions

According to an article by Jared Brey in Governing, “A recently proposed federal rule would require states and metropolitan planning organizations to set targets for reducing tailpipe carbon emissions on portions of the national highway system that are within their boundaries, and to publicly monitor progress toward those goals.”

First proposed during the Obama administration and rescinded by President Trump’s administration, the rule is being revived to help bring states in line with national emission reduction goals. “Coupled with billions of dollars from the Infrastructure Investment and Jobs Act for carbon reduction and electric vehicle infrastructure — and more modest sums for multimodal transit planning — the administration hopes the rule will help states and metropolitan areas make fewer climate-damaging transportation decisions.”

While the FHWA says the rule, which offers flexibility to states and regions on setting targets and strategies for achieving them, should help “inform better decisions,” critics warn that it “won’t have a real impact on overall emissions without changes to the way mass transit and highway projects are funded.” Advocates say the federal government could do more to require climate considerations and emissions reduction strategies, calling this rule a welcome but inadequate step to address the urgency of the moment.

Wednesday, August 3, 2022 in Governing

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Use Code 25for25 at checkout for 25% off an annual plan!

Interior of Place Versailles mall in Montreal, Canada.

Montreal Mall to Become 6,000 Housing Units

Place Versailles will be transformed into a mixed-use complex over the next 25 years.

May 22, 2025 - CBC

Logo for Planetizen Federal Action Tracker with black and white image of U.S. Capitol with water ripple overlay.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

May 28, 2025 - Diana Ionescu

White and yellow DART light rail train in Dallas, Texas with brick building in background.

DARTSpace Platform Streamlines Dallas TOD Application Process

The Dallas transit agency hopes a shorter permitting timeline will boost transit-oriented development around rail stations.

May 28, 2025 - Mass Transit

Screenshot of shade map of Buffalo, New York with legend.

Interactive Map Reveals America's “Shade Deserts”

Launched by UCLA and American Forests to combat heat-related deaths, the tool maps the shade infrastructure for over 360 U.S. cities.

June 3 - UCLA Newsroom

Close-up of person putting sticker on back of basket of electric tricycle with mock license plate reading "E-TRIKE."

Bicycles and Books — In Sacramento, Libraries Now Offer Both

Adult library card holders can check out e-bikes and e-trikes for up to one week.

June 3 - The Sacramento Bee

Large pile of unsorted garbage in landfill with birds flying above at sunrise or sunset.

Colorado Landfills Emit as Much Pollution as 1M Cars

Landfills are the third-largest source of methane pollution in Colorado, after agriculture and fossil fuel extraction.

June 3 - Colorado Newsline

Urban Design for Planners 1: Software Tools

This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.

Planning for Universal Design

Learn the tools for implementing Universal Design in planning regulations.