CHAPTER I--DEPARTMENT OF HOMELAND SECURITY PART 271--DILIGENT AND REASONABLE EFFORTS TO PREVENT THE UNAUTHORIZED ENTRY OF ALIENS BY THE OWNERS OF RAILROAD LINES, INTERNATIONAL BRIDGES OR TOLL ROADS
PART 271--DILIGENT AND REASONABLE EFFORTS TO PREVENT THE UNAUTHORIZED ENTRY OF ALIENS BY THE OWNERS OF RAILROAD LINES, INTERNATIONAL BRIDGES OR TOLL ROADS