46 C.F.R. § 393.5
(a) How does DOT support research?
(1) The Program Office works in consultation with public and private entities as appropriate, within the limits of available resources, to identify impediments, develop incentives, and conduct innovative research, in support of the America's Marine Highway Program or in direct support of specific designated Marine Highway Routes and Projects. The primary objectives of selected research projects are to:
(b) The Secretary, in consultation with the Administrator of the Environmental Protection Agency, may conduct research on short sea transportation regarding: