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Measuring and Reducing Greenhouse Gas Emissions

Raise your voice to support and strengthen USDOT’s greenhouse gas emissions rule.

Image of a highway

Image: Kahunapule Michael Johnson/Flickr

The science is clear: carbon emissions are accelerating climate change, and transportation is the largest source of greenhouse gasses in the United States. The country cannot meet its commitments under the Paris Agreement without reducing the 83% of transportation emissions that come from passenger cars, trucks, and SUVs.

The Biden Administration has announced a proposed new rule that would require states to measure and set targets to reduce greenhouse gas emissions. The reinstatement of this essential measure, which will deliver taxpayers valuable information about how their money is being spent and what they’re getting from their investment, is long overdue.

That’s why NACTO has submitted comments supportive of the measure, along with a short set of recommendations to further strengthen it. In addition to the proposed measurement and emissions reduction targets outlined in the proposed rule, we’re encouraging USDOT to require that states and metropolitan planning organizations (MPOs):

  1. Track emissions from travel on all roads and set targets for reducing them, not just those on the National Highway System.
  2. Take specific actions if they fail to meet the targets they set, such as committing to use their federal funding only for emission-reducing projects until the target is met.
  3. Report every two years on the GHG performance metric, rather than limiting MPO reporting to every four years. States and MPOs should also be required to set 8- and 20-year targets for emissions reduction in addition to 2- and 4-year targets.

Cities are the frontline in the efforts to avert climate change and city voices are essential to this rulemaking. That’s why NACTO has developed a template letter that city agencies can use to voice their support for the rule as well as the above recommendations. Advocates, organizations and concerned individuals are welcome to use this letter, too.

Download the template letter. Then, submit your comments to USDOT through this online portal.

The comment period ends October 13th.

Read NACTO’s July 2022 statement about the greenhouse gas emissions rule. >

NACTO’s State and Federal Policy Program >