; and (bb) innovative materials that may be further researched, developed, and used to meet those needs. (iii) Activities The collaboration described in clause (ii) may include— (I) the development of new training for State and Tribal agencies; and (II) the expansion of technical training that involves State or Tribal departments of transportation in the development of new construction designs for innovative materials at the Turner-Fairbank Highway Research Center. (iv) Priority research The Turner-Fairbank Highway Research Center shall prioritize research relating to— (I) the use of innovative materials in— (aa) bridges with a span equal to or greater than 50 feet; (bb) highway reconstruction and rehabilitation; and (cc) rural road infrastructure; (II) the development of standardized designs using innovative materials