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Trump Administration Rolls Back US Fuel Economy Standards for New Cars

The administration has finalized rules lowering the average fuel economy requirement to 34.9 mpg by 2031, reversing Biden-era targets of 50.4 mpg.

18 publishers · 25 articles · first seen 26 Sept 2026 · updated 36d ago

Headline and summary written by an AI model from the linked articles; not reviewed by a person. How this was made

First reported by Energy & Environment, 1h 07m ahead of the next publisher · who breaks stories first

This story has stopped developing; this page is its permanent record. More from that day

The odds

How the odds moved · During his presidential term
0%50%100%22%27 Sept, 12:13 UTCnowAl Jazeera – Breaking News, World News and Video from Al Jazeera: California leads lawsuit against Trump fuel efficiency standards rollback · 2 Oct, 20:28 UTCThe New York Times: California Sues to Block Trump From Weakening Fuel Economy Rules · 2 Oct, 19:08 UTCBloomberg Markets: India Sets New Car Emission Limits, Adds Carbon Credit Trading · 30 Sept, 12:25 UTCNPR World: Trump weakens fuel efficiency standards. And, Cornell fraternity rape case reopened · 29 Sept, 11:36 UTCNPR Politics: Trump administration says it's scaling back fuel efficiency standards for new cars · 29 Sept, 08:46 UTCNPR Politics: Pete Buttigieg discusses Trump administration's rollback of fuel efficiency standards · 29 Sept, 08:46 UTCJust In News: Trump loosens vehicle mileage standards · 28 Sept, 22:09 UTCArs Technica: Trump cuts fuel economy standards back to 2014 levels · 28 Sept, 19:35 UTCThe Verge: Trump finalizes rule to make cars less fuel efficient · 28 Sept, 18:39 UTCCBS News Politics: Trump administration rolls back Biden-era fuel economy standards · 28 Sept, 18:30 UTCThe New York Times: Trump Sharply Scales Back Fuel Economy Rules for New Cars · 28 Sept, 18:29 UTCThe Guardian US: Trump administration to slash clean car rules aimed at cutting climate emissions · 28 Sept, 15:56 UTCThe Hill: Trump rolls back car efficiency standards · 28 Sept, 13:26 UTCThe Hill: Live updates: Trump officially rolls back fuel economy standards; Senate sets up college sports bill vote · 28 Sept, 13:09 UTCCNBC: Trump says he approved new fuel economy standards, rolling back Biden-era rules · 28 Sept, 10:32 UTCDeutsche Welle: Weakened US fuel-efficiency rules and promises of cheaper cars could see drivers pay higher running costs while also increasing carbon emissions. · 1 Oct, 11:05 UTCTimes of India: New CAFE-III fuel-efficiency rules: What changes for EVs, hybrids and small cars · 30 Sept, 08:43 UTCcnet.com: US Department of Transportation Makes Way for Less Efficient Cars as Fuel Prices Soar · 28 Sept, 23:46 UTCInside Climate News: Trump Slashes Fuel-Economy Standards in Blow to Climate, Health, EV Market · 28 Sept, 23:21 UTCRoll Call: Trump administration cuts mileage rules for cars, light trucks · 28 Sept, 18:45 UTCQuartz: Trump's fuel economy rollback will save GM $20 billion in tech costs through 2031 · 28 Sept, 18:40 UTCScientific American: Trump announces relaxed fuel economy standards · 28 Sept, 18:00 UTC

Each tick is a source publishing on this story · 3 more published before price tracking began

Price data
TimeChance of yes
now22%
27 Sept, 12:13 UTC22%

The story so far

18 publishers have covered this in 25 articles since 26 Sept 2026. Energy & Environment published first, on 26 September at 20:44 UTC; Al Jazeera – Breaking News, World News and Video from Al Jazeera followed 1h 08m later. The most recent article, from Al Jazeera – Breaking News, World News and Video from Al Jazeera, appeared on 2 October at 20:28 UTC.

Outlets reporting it: Energy & Environment (major outlet), Al Jazeera – Breaking News, World News and Video from Al Jazeera (major outlet), Just In News (major outlet), CNBC (major outlet), The Guardian US (major outlet), The New York Times (major outlet), CBS News Politics (major outlet), The Verge (major outlet), Ars Technica (major outlet), NPR World (major outlet), Bloomberg Markets (major outlet), Scientific American and 6 more, all listed under Sources below.

3 prediction markets price this story:

  • During his presidential term — the market puts it at 22%, closing 31 Dec 2031. The market resolves to Yes if income inequality in the United States is higher in 2024 than it is in 2028. It resolves to No if inequality is lower or equal in 2024 compared to 2028. Readers often mistake the linked news story about fuel economy standards as the deciding factor, but the resolution depends solely on economic inequality data.
  • Before 2029 — the market puts it at 18%, closing 30 Jun 2029. The market resolves to Yes if manufacturing’s share of GDP reaches at least 13.1% in the fourth quarter of 2028. It resolves to No if that value stays below 13.1% during that same quarter. Readers often mistake the deadline for the end of 2029 instead of Q4 2028.
  • Electric Vehicle / EV — resolved “No” on 1 Oct 2026. The outcome is Yes if Donald Trump mentions Electric Vehicle or EV during his remarks at Peterbilt Motors Company in Denton, Texas on October 1, 2026. The outcome is No if he does not use those specific words at that event. Readers often mistake the linked news story about fuel economy standards as the trigger, but only Trump's spoken words at the specified location and date count.

Odds are the market's probability that the outcome happens, updated every few minutes. They are information about what traders expect, not a forecast we make and not investment advice.

How it unfolded

Every source in the order it published, with the odds on During his presidential term at that moment. A dash means the source published before we started tracking prices.

  1. Energy & EnvironmentTrump slashes Biden-era fuel economy standards for cars—
  2. Al Jazeera – Breaking News, World News and Video from Al JazeeraTrump says he is rolling back Biden-era US fuel economy rules for cars—
  3. The HillTrump says he ended Biden electric vehicle rule, updated fuel economy standards—
  4. CNBCTrump says he approved new fuel economy standards, rolling back Biden-era rules22%
  5. The HillLive updates: Trump officially rolls back fuel economy standards; Senate sets up college sports bill vote22%
  6. The HillTrump rolls back car efficiency standards22%
  7. The Guardian USTrump administration to slash clean car rules aimed at cutting climate emissions22%
  8. Scientific AmericanTrump announces relaxed fuel economy standards22%
  9. The New York TimesTrump Sharply Scales Back Fuel Economy Rules for New Cars22%
  10. CBS News PoliticsTrump administration rolls back Biden-era fuel economy standards22%
  11. Show 15 later sources
    1. The VergeTrump finalizes rule to make cars less fuel efficient22%
    2. QuartzTrump's fuel economy rollback will save GM $20 billion in tech costs through 203122%
    3. Roll CallTrump administration cuts mileage rules for cars, light trucks22%
    4. Ars TechnicaTrump cuts fuel economy standards back to 2014 levels22%
    5. Just In NewsTrump loosens vehicle mileage standards22%
    6. Inside Climate NewsTrump Slashes Fuel-Economy Standards in Blow to Climate, Health, EV Market22%
    7. cnet.comUS Department of Transportation Makes Way for Less Efficient Cars as Fuel Prices Soar22%
    8. NPR PoliticsPete Buttigieg discusses Trump administration's rollback of fuel efficiency standards22%
    9. NPR PoliticsTrump administration says it's scaling back fuel efficiency standards for new cars22%
    10. NPR WorldTrump weakens fuel efficiency standards. And, Cornell fraternity rape case reopened22%
    11. Times of IndiaNew CAFE-III fuel-efficiency rules: What changes for EVs, hybrids and small cars22%
    12. Bloomberg MarketsIndia Sets New Car Emission Limits, Adds Carbon Credit Trading22%
    13. Deutsche WelleWeakened US fuel-efficiency rules and promises of cheaper cars could see drivers pay higher running costs while also increasing carbon emissions.22%
    14. The New York TimesCalifornia Sues to Block Trump From Weakening Fuel Economy Rules22%
    15. Al Jazeera – Breaking News, World News and Video from Al JazeeraCalifornia leads lawsuit against Trump fuel efficiency standards rollback22%
  12. Current odds22%

Sources

Every article we clustered into this story. Headlines link to the publisher.

  1. California leads lawsuit against Trump fuel efficiency standards rollback Al Jazeera – Breaking News, World News and Video from Al Jazeera ·
  2. California Sues to Block Trump From Weakening Fuel Economy Rules The New York Times ·
  3. India Sets New Car Emission Limits, Adds Carbon Credit Trading Bloomberg Markets ·
  4. Trump weakens fuel efficiency standards. And, Cornell fraternity rape case reopened NPR World ·
  5. Trump administration says it's scaling back fuel efficiency standards for new cars NPR Politics ·
  6. Pete Buttigieg discusses Trump administration's rollback of fuel efficiency standards NPR Politics ·
Show 19 more sources
  1. Trump loosens vehicle mileage standards Just In News ·
  2. Trump cuts fuel economy standards back to 2014 levels Ars Technica ·
  3. Trump finalizes rule to make cars less fuel efficient The Verge ·
  4. Trump administration rolls back Biden-era fuel economy standards CBS News Politics ·
  5. Trump Sharply Scales Back Fuel Economy Rules for New Cars The New York Times ·
  6. Trump administration to slash clean car rules aimed at cutting climate emissions The Guardian US ·
  7. Trump rolls back car efficiency standards The Hill ·
  8. Live updates: Trump officially rolls back fuel economy standards; Senate sets up college sports bill vote The Hill ·
  9. Trump says he approved new fuel economy standards, rolling back Biden-era rules CNBC ·
  10. Trump says he ended Biden electric vehicle rule, updated fuel economy standards The Hill ·
  11. Trump says he is rolling back Biden-era US fuel economy rules for cars Al Jazeera – Breaking News, World News and Video from Al Jazeera ·
  12. Trump slashes Biden-era fuel economy standards for cars Energy & Environment ·
  13. Weakened US fuel-efficiency rules and promises of cheaper cars could see drivers pay higher running costs while also increasing carbon emissions. Deutsche Welle
  14. New CAFE-III fuel-efficiency rules: What changes for EVs, hybrids and small cars Times of India
  15. US Department of Transportation Makes Way for Less Efficient Cars as Fuel Prices Soar cnet.com
  16. Trump Slashes Fuel-Economy Standards in Blow to Climate, Health, EV Market Inside Climate News
  17. Trump administration cuts mileage rules for cars, light trucks Roll Call
  18. Trump's fuel economy rollback will save GM $20 billion in tech costs through 2031 Quartz
  19. Trump announces relaxed fuel economy standards Scientific American

Related prediction markets

Linked by software because they are about the same subject. Most ask a different question from the one this story reports, so read each market's own question. How often the link is right

  • Kalshi During his presidential term 22% $0 24hends 31 Dec 2031

    Does the market have this right?

    Wrong market?

  • Kalshi Before 2029 18% $0 24hends 30 Jun 2029

    Does the market have this right?

    Wrong market?

  • Resolved Electric Vehicle / EV No 36d ago

    The market favoured Yes at 63% a day out, but No won. How often it's right

    Wrong market?

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