Federal agencies released an interim report for the Asian Carp Environmental DNA Calibration Study (ECALS), which is a three-year study funded through the Great Lakes Restoration Initiative, as scoped by the Asian Carp Regional Coordinating Committee (ACRCC) Asian Carp Control Strategy Framework.The purpose of ECALS is to improve the understanding and interpretation of Asian carp environmental DNA results, so we can refine and make this relatively young monitoring tool the most effective to detect live Asian carp presence.