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Traffic develops ahead of the July 4th weekend in downtown New York, U.S., on Friday, July 2, 2021. Photo: David Dee Delgado/Bloomberg via Getty Images

The Biden administration is on the cusp of floating draft auto emissions and mileage rules, per several reports.

Why it matters: Transportation is the largest source of U.S. carbon emissions, but auto rules have been in a complex regulatory, courtroom and lobbying seesaw for years.

  • The Trump administration scaled back Obama-era mandates for model years into the mid-2020s, but now the pendulum is swinging back.

Driving the news: AP first reported on Tuesday that draft EPA and Transportation Department rules are expected as soon as next week.

  • "The move ... resembles a 2019 pact between California and five automakers that mandates a 3.7 percent annual mileage increase through the 2026 model year," the Washington Post reports.
  • The rules would then become more stringent in subsequent years, per various reports. But in the short term, they will "fall short of what environmental activists have called for," Bloomberg notes.

Go deeper

Ben Geman, author of Generate
Aug 6, 2021 - Energy & Environment

The long road to Biden's electric vehicle goal

Expand chart
Data: Wards Intelligence; Chart: Axios Visuals

The White House target of zero-emissions models reaching 50% of U.S. car and light truck sales by 2030 is hardly impossible, but a lot of things will have to break right.

Catch up fast: President Biden's executive order Thursday set the nonbinding 50% target of sales from battery-electric, plug-in hybrid or fuel cell electric models.

Biden steps into the breach

Sen. Joe Manchin heads to a meeting with President Biden today. Photo: Kevin Dietsch/Getty Images

President Biden ramped up the pressure on his fellow Democrats Wednesday, calling a series of lawmakers to the White House in the hope of ending infighting and getting them in line.

Why it matters: Divisions within the party are threatening to derail Biden's top priorities. After several weeks of letting negotiations play out, the president is finally asserting his power to ensure his own party doesn't block his agenda.

38 mins ago - Politics & Policy

Scoop: Dems seek new green deal

Rep. Stephanie Murphy. Photo: Chip Somodevilla/Getty Images/Bloomberg via Getty Images

House Democrats discussed with President Biden on Wednesday a plan to exempt billions of dollars of new climate spending from his requirement that his $3.5 trillion "soft" infrastructure plan be offset with additional revenue.

Why it matters: The accounting proposal — a version of "dynamic scoring" — would dramatically lower the amount of taxes Democrats would need to raise while creating wiggle room to increase the ultimate size of the package.