The Environmental Protection Agency has officially opened a 60-day comment period for proposed changes to the Renewable Fuel Standard. The comment period will be open until July 27.

In addition to seeking comments on the proposed rulemaking announced earlier this month, EPA is also conducting peer reviews of critical aspects of the lifecycle methodology used to determine the greenhouse gas emissions of various fuels.

EPA has also announced a public hearing to be held for the proposed rule which will be held in Washington, DC on June 9.