Emergency SNAP Flexibilities Extension Act This bill extends existing Supplemental Nutrition Assistance Program (SNAP, formerly known as the food stamp program) flexibilities for states during the COVID-19 (i.e., coronavirus disease 2019) public health emergency. Under current law, the Department of Agriculture (USDA) has temporarily waived certain requirements under SNAP due to COVID-19. Specifically, the bill authorizes states to extend through June 30, 2021, SNAP certification periods and adjust periodic reporting and interview requirements for some or all participating households without USDA approval. Additionally, states may allow household reporting requirements to satisfy the recertification requirements for some or all participating households with recertification periods set to expire on or before December 31, 2021.