Congress locks in a 1977 pipeline treaty, blocking presidential withdrawal
H.R. 4043 — Line 5 Act · Filed by John Moolenaar (R-MI) · 3 cosponsors · Introduced Jun 17, 2025 · Referred to committee
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What it does
This bill prohibits the President or anyone acting on the President's authority from violating the 1977 U.S.-Canada transit pipeline agreement. It is a direct legal constraint on executive power to unilaterally breach or withdraw from that treaty without congressional action.
Why we flagged it
The bill's operative mechanism is a prohibition on presidential action — specifically, a bar on unilateral violation or withdrawal from a named international treaty. This is a separation-of-powers measure, not a substantive policy change to pipeline regulation itself.
What the text implies
- The bill does not authorize or fund any action; it only constrains the President's ability to act unilaterally. Implementation depends on whether the President attempts to violate the treaty and whether courts enforce the prohibition.
- The 1977 treaty's actual terms (environmental standards, operational requirements, dispute resolution, termination clauses) are not disclosed in this bill. The civic effect — whether the treaty protects the public or serves pipeline operators — cannot be assessed from the bill text alone.
The full analysis lists 4 implications of this text.
Who stands to gain
pipeline operators (Enbridge or other transit pipeline companies operating under the 1977 treaty)