To amend title 23, United States Code, to direct the Secretary of Transportation to establish national tunnel inspection standards for the proper safety inspection and evaluation of all highway tunnels, and for other purposes.

Amends federal highway law to direct the Secretary of Transportation (Secretary) to establish: (1) a national highway tunnel inspection program, including standards for the proper safety inspection and evaluation of all highway tunnels; (2) a training and certification program for highway tunnel inspectors; and (3) a national inventory of highway tunnels. Provides for funding. Includes tunnel construction, rehabilitation, and operational improvements (including safety inspection of such tunnels) as eligible projects under the federal surface transportation program.