Renewable Energy (REGI) 10-K/A 2010 FY Annual report (amended)

Exhibit 31.2

CERTIFICATION ACCOMPANYING PERIODIC REPORT

PURSUANT TO SECTION 302

OF THE SARBANES-OXLEY ACT OF 2002

I, Chad Stone, Chief Financial Officer, certify that:

1. I have reviewed this Annual Report on Form 10-K/A of Renewable Energy Group, Inc.; and

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report.

	/s/ Chad Stone
Dated: May 2, 2011	Chad Stone Chief Financial Officer