; or (B) in modes of transportation by the Navy or the Coast Guard. (3) Duration The Secretary shall carry out the research and development phase of the Program during a four-year period commencing not later than 90 days after the date of the enactment of this Act. (4) Grants authorized The Secretary may carry out the research and development phase of the Program through the award of grants to private entities and eligible laboratories. (5) Report required Not later than 180 days after the date of the completion of the research and development phase of the Program, the Secretary shall submit to Congress a report on the research and development carried out under the Program. (6) Authorization of appropriations There are authorized to be appropriated to carry out the research and development phase of the Program— (A) $8,000,000 for fiscal year 2020; and (B) $10,000,000 for each of fiscal years 2021 through 2023. (c) Testing and evaluation phase (1) In general During the testing and evaluation phase of the Program, the Secretary shall, in pursuit of the goals set forth in subsection (a)(2), conduct tests and evaluations of the technologies researched and developed during the research and development phase of the Program. (2) Direct air capture The testing and evaluation phase of the Program may include demonstration projects for direct air capture to produce fuel for use— (A) at military installations or facilities of the Department of Defense