; or (ii) in modes of transportation by the Navy or the Coast Guard. (3) Phases The program established under paragraph (1) shall be carried out in two phases as follows: (A) The first phase shall consist of research and development and shall be carried out as described in subsection (b). (B) The second phase shall consist of testing and evaluation and shall be carried out as described in subsection (c), if the Secretary determines that the results of the research and development phase justify implementing the testing and evaluation phase. (4) Designation The program established under paragraph (1) shall be known as the Direct Air Capture and Blue Carbon Removal Technology Program (in this section referred to as the Program ). (b) Research and development phase (1) In general During the research and development phase of the Program, the Secretary of Defense shall conduct research and development in pursuit of the goals set forth in subsection (a)(2). (2) Direct air capture The research and development phase of the Program may include, with respect to direct air capture, a front end engineering and design study that includes an evaluation of direct air capture designs to produce fuel for use— (A) at military installations or facilities of the Department of Defense