; and (2) recommendations, as necessary, to ensure implementation of the regulations referred to in such subsection. 6. Research and development (a) Emerging issues Not later than 180 days after the date of the enactment of this Act, the Secretary of Homeland Security, acting through the Under Secretary for Science and Technology of the Department of Homeland Security and in coordination with the Administrator of the Transportation Security Administration, shall submit to the appropriate congressional committees a feasibility assessment of modifying the security of surface transportation assets by— (1) introducing next generation technologies to be integrated into systems of surface transportation assets to detect explosives, including through the deployment of mobile explosives detection technologies to conduct risk-based passenger and property screening at such systems; (2) providing surface transportation asset operators with access to the Transportation Security Administration’s Secure Flight Program or a similar passenger vetting system maintained by the Transportation Security Administration; (3) deploying a credential authentication technology or other means of identification document inspection to high-risk surface transportation assets to assist operators conducting passenger vetting