This document includes questions and answers that pertain to the ARPA-E Funding Opportunity Announcement (FOA) entitled "Solicitation on Topics Informing New Program Areas DE-FOA-0001954 SBIR/STTR  Topic K - Recycle Underutlized Solids to Energy".  The full solicitation on Targets Informing New Program Areas FOA and additional information can be found on the ARPA-E Funding Opportunity Exchange website (https://arpa-e-foa.energy.gov/).