The Secretary, acting through appropriate agencies and contractors, shall initiate and provide for the conduct of research and development in areas relating to methane-fueled vehicles, including but not limited to—
(1)
flammability and combustibility of methane under conditions likely to develop in storage or during vehicular use;
(3)
comprehensive assessment of the relative hazards under identical circumstances of methane, propane, gasoline, and diesel fuel;
(4)
feasibility, economy, and efficiency of technologies for the production and recovery of methane from unconventional and supplemental sources, as provided for in other authorization Acts;
(5)
engine and fuel tank design including, but not limited to, optimum design for dual fuel capacity vehicles;
(7)
the nature and quantities of emissions, and alterations in or alternatives to emission control systems presently in use; and