By David Shepardson WASHINGTON (Reuters) -The U.S. Environmental Protection Agency (EPA) will consider adopting more stringent greenhouse gas emissions rules for heavy trucks after Congress passed new incentives to speed the adoption of zero-emission vehicles, the agency told Reuters. In March, the EPA proposed new rules to cut smog-forming and greenhouse gas (GHG) emissions from heavy-duty vehicles. The agency said it will reopen the proposed GHG rules after passage in August of the climate and spending Inflation Reduction Act, a move that could speed the U.S. shift to electric heavy-duty veh…