; and (II) prioritize facilities that use waste feedstocks from managed ecosystems, urban areas, and areas damaged by severe weather events. (D) Biomass conversion to fuels with biochar (i) In general The Assistant Secretary shall carry out research, development, and demonstration activities relating to— (I) research on conversion pathways, including fast pyrolysis; (II) development of— (aa) mobile processing units; and (bb) pollutant emissions control technology