The Environment Protection Agency (EPA), the U.S. environmental regulator, will reconsider air-quality regulations affecting Texas after Gov. Greg Abbott declared a statewide disaster over diesel prices. EPA Administrator Lee Zeldin said the agency would review concerns that Biden- and Obama-era requirements are causing significant economic harm, while cautioning that the outcomes have not been predetermined. Abbott’s declaration allows him to lift certain commercial-transportation restrictions, expand the use of dyed diesel on Texas roads and suspend Texas Low Emission Diesel rules up to the federal limit. National diesel prices average nearly $6.40 per gallon, according to AAA, compared with roughly 84 cents a month ago and about $2.76 a year ago. EPA said it will reconsider the 2015 ozone-designation nonattainment classification, which enabled stricter emissions controls in parts of Texas, as well as the Biden-era EPA rejection of Texas efforts to meet federal ozone standards under the Clean Air Act. The agency said the review could address pollution originating outside Texas while maintaining clean air. The development comes as the Senate considers a proposal backed by Sen. Chuck Grassley (R-Iowa) and other farm-state Republicans to embargo diesel exports, while the White House has denied plans for a 90-day export ban.