Executives of companies with clean energy projects are facing questions about the potential for a rollback of the law and its incentives if a Republican wins.
The Office of the National Taxpayer Advocate lamented that the tax collection agency, which now faces budget cuts in Congress, is still struggling to answer the telephones.
Residents of 12 states are eligible to participate if they meet certain criteria. But the agency’s plans have already met resistance from tax preparation companies.
Purchases of popular models like the Tesla Model 3 and the Ford Mustang Mach-E may no longer entitle buyers to tax savings because the cars do not meet tougher sourcing requirements.
Government officials and energy developers misjudged the difficulty of building huge clean energy projects in the United States, which has built very few of them.