In the 20 months since the passing of the Inflation Reduction Act by Congress, President Joe Biden has been working to supplement clean energy subsidies with key regulations to combat climate change. The recent focus of the Environmental Protection Agency has been on implementing rules that penalize carbon emissions from various sources, including power plants, oil wells, and passenger cars. The most recent rule finalized targets carbon emissions from heavy-duty vehicles like big rigs, garbage trucks, and school buses. Despite some concerns from the industry, many heavy-duty vehicles could be electrified now due to their distinct routes and limited mileage. The new regulations aim to transition the industry to cleaner alternatives, reducing toxic air pollution and improving air quality in communities across the country. While the rule provides manufacturers with flexibility to meet emissions goals, it is expected to lead to significant improvements in air quality nationwide.