The U.S. Environmental Protection Agency (EPA) has proposed changes to the sourcing and methodology for cellulosic waiver credit prices that refiners need to purchase to meet the U.S. Renewable Fuel Standards program.

EPA plans to change the source, methodology to calculate these prices and to publish them on its website "in a more timely fashion," the agency said in a notice on Wednesday.

To read the full notice, go here: 1.usa.gov/19l6Qs9.