Feedstock readiness level evaluations are performed for a specific feedstock-conversion process combination and for a particular region. FSRL evaluations complement evaluations of Fuel Readiness Level (FRL) and environmental progress. The data from this evaluation, compiled in June 2021, assesses the maturity of *Thlaspi arvense* (pennycress), as a feedstock for the hydroprocessed esters and fatty acids (HEFA) conversion process in the United States Midwest region.