NATIONWIDE IMPACTS OF CALIFORNIA’S ADVANCED CLEAN CARS II RULE

The report finds that if all 177 States adopting California's standards implement the Advanced Clean Cars II (ACC II) rule, U.S. emissions could be reduced by 1,310 million metric tons of CO2e by 2050. This adoption would lead to three-quarters of U.S. cars being electric vehicles (EVs) by 2050, creating nearly 300,000 jobs and saving households an average of $238 annually. The analysis emphasizes that while the IRA provides near-term incentives, the ACC II mandate is necessary for long-term electrification goals. Case studies for Maryland, New Jersey, New Mexico, and New York highlight significant state-level benefits, including substantial reductions in asthma attacks and premature deaths, particularly in communities of color.

• If all modeled 177 States adopt the ACC II rule, cumulative U.S. emissions could decrease by 1,310 million metric tons (MMT) of carbon dioxide-equivalent pollutants (CO2e) by 2050, which is equivalent to the emissions of 13 coal plants operating through that period.
• Broad adoption of the ACC II rule could result in more than 239 million electric vehicles in the U.S. by 2050, representing three-quarters of the total car fleet.
• The adoption of ACC II by the 177 States is projected to generate nearly 300,000 additional jobs by 2050 and provide an average annual saving of $238 per U.S. household in 2022 dollars.
• Widespread adoption of the rule could prevent 160,000 asthma attacks and 5,000 deaths by 2050, with health benefits particularly benefiting communities of color.
• The report argues that while the Inflation Reduction Act (IRA) accelerates EV growth through 2032, binding ZEV sales standards like ACC II are required to maintain this momentum and achieve long-term carbon neutrality goals after federal tax credits expire.
• Case studies indicate specific state benefits: New York could reduce emissions by 108 MMT CO2e by 2050; New Jersey households could save over $682 annually; Maryland households could save $642 annually; and New Mexico households could save $591 annually.

APA

GOLDSTEIN, R., O’BRIEN, D., & ORVIS, R. (2023). NATIONWIDE IMPACTS OF CALIFORNIA’S ADVANCED CLEAN CARS II RULE. Energy Innovation. https://energyinnovation.org/wp-content/uploads/Nationwide-Impacts-Of-Californias-Advanced-Clean-Cars-II-Rule-1.pdf

Chicago

GOLDSTEIN, RACHEL, DANIEL O’BRIEN, and ROBBIE ORVIS. NATIONWIDE IMPACTS OF CALIFORNIA’S ADVANCED CLEAN CARS II RULE. Energy Innovation, 2023. https://energyinnovation.org/wp-content/uploads/Nationwide-Impacts-Of-Californias-Advanced-Clean-Cars-II-Rule-1.pdf.

Wikipedia

{{cite report |last1=GOLDSTEIN |first1=RACHEL |last2=O’BRIEN |first2=DANIEL |last3=ORVIS |first3=ROBBIE |title=NATIONWIDE IMPACTS OF CALIFORNIA’S ADVANCED CLEAN CARS II RULE |publisher=Energy Innovation |date=April 2023 |url=https://energyinnovation.org/wp-content/uploads/Nationwide-Impacts-Of-Californias-Advanced-Clean-Cars-II-Rule-1.pdf |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{goldstein2023nationwide, author = {GOLDSTEIN, RACHEL and O’BRIEN, DANIEL and ORVIS, ROBBIE}, title = {{NATIONWIDE IMPACTS OF CALIFORNIA’S ADVANCED CLEAN CARS II RULE}}, institution = {Energy Innovation}, year = {2023}, month = apr, url = {https://energyinnovation.org/wp-content/uploads/Nationwide-Impacts-Of-Californias-Advanced-Clean-Cars-II-Rule-1.pdf}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }