"Federal Rule Mandates State Action to Reduce Transportation Carbon Emissions"

The Federal Highway Administration has issued a new rule requiring states and urban areas to set goals for reducing carbon emissions from cars and trucks on their roads, linking highway funding to environmental priorities. While environmentalists and some Democratic-led states support the rule, many state transportation agencies oppose it, questioning the federal government's legal authority to enforce it. Transportation is the largest source of greenhouse gases in the US, and the rule aims to encourage states to prioritize funding for transit, electric vehicle charging, and greener forms of transportation. The rule does not penalize states if their emissions increase, and the first targets must be set by February 1. The rule is expected to face opposition from Republican lawmakers and conservative states.