(a)
Minimum Standards.—
The Secretary of Transportation shall prescribe regulations establishing minimum standards for the safety of cars used by railroad carriers to transport passengers. Before prescribing such regulations, the Secretary shall consider—
(1)
the crashworthiness of the cars;
(2)
interior features (including luggage restraints, seat belts, and exposed surfaces) that may affect passenger safety;
(3)
maintenance and inspection of the cars;
(4)
emergency response procedures and equipment; and
(5)
any operating rules and conditions that directly affect safety not otherwise governed by regulations.
The Secretary may make applicable some or all of the standards established under this subsection to cars existing at the time the regulations are prescribed, as well as to new cars, and the Secretary shall explain in the rulemaking document the basis for making such standards applicable to existing cars.