"NEW YORK - Five Republican senators on Monday called on President Donald Trump to temporarily halt the use of biofuels policy waivers for small oil refineries, after reports the Environmental Protection Agency had issued a recent wave of such exemptions.

The group of lawmakers, which includes Senators Charles Grassley and Joni Ernst of Iowa and John Thune of South Dakota, said the EPA waivers are “undermining” the U.S. Renewable Fuel Standard, a law that requires biofuels like ethanol to be added to the nation’s fuel, which Trump has said he supports.

“We therefore urge you to call on the EPA to cease all RFS waiver action until the agency’s administration of the RFS can proceed in a more transparent and impartial manner,” the senators said in a letter dated April 9."

Jarrett Renshaw and Chris Prentice report for Reuters April 9, 2018. [2]