To amend title 49, United States Code, to limit the preference for Amtrak using rail lines, junctions, and crossings near ports and rail yards, and for other purposes.

“(1) In general—Except as provided in paragraph (2) or paragraph (3) or in an emergency”

“(2) Limitation of preference—Beginning on the date of enactment of this paragraph and ending on the date that is 5 years after such date, intercity and commuter rail passenger transportation provided by or for Amtrak shall not have preference over freight transportation in using a rail line, junction, or crossing if such rail line, junction, or crossing is located within 50 miles of a port or rail yard.

“(3) Waiver by Secretary—The Secretary may issue such regulations as are necessary to continue the preference waiver described in paragraph (2).”