This document includes questions and answers that pertain to the ARPA-E Funding Opportunity Announcement (FOA) entitled "OPTIMIZING NUCLEAR WASTE AND ADVANCED REACTOR DISPOSAL SYSTEMS (ONWARDS) SBIR/STTR".  The full solicitation on the ONWARDS SBIR/STTR FOA and additional information can be found on the ARPA-E Funding Opportunity Exchange website (https://arpa-e-foa.energy.gov).