National Farmers Union is urging the Environmental Protection Agency to immediately implement a waiver for summertime sales of E15. In a statement, NFU President Roger Johnson noted that year-round use of E15 benefits farmers, the economy, energy independence and the environment. President Donald Trump committed to allow the waiver earlier this year. However, the EPA has yet to take action or provide a timeline for implementation. Johnson says the delay is threatening to upend potential benefits of an E15 waiver in the upcoming summer months.