; and (2) not later than 18 months after such determination, publish a notice in the Federal Register of a proposed revision to such regulations to require locomotive engineers and conductors, or personnel seeking initial certification to become a locomotive engineer or a conductor for Amtrak, to report arrests due to drug or alcohol offenses immediately or as soon as practicable. 4. Safety-sensitive personnel study Not later than 180 days after the date of the enactment of this Act, the Secretary of Transportation shall submit a report to Congress that— (1) describes the ability of pipeline companies that operate from Canada or Mexico into the United States to conduct the same drug and alcohol tests that are required of personnel in the United States on safety-sensitive personnel who— (A) work outside of the United States; and (B) have responsibilities related to maintaining and controlling pipeline in the United States