Congress repeals 120-year maritime rule protecting U.S. dredging jobs
S. 4753 — Port Modernization and Supply Chain Protection Act · Filed by Mike Lee (R-UT) · Introduced Jun 11, 2026 · Referred to committee
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What it does
This bill repeals a 1906 law requiring that dredging work and dredged material (sediment removed from ports and waterways) be transported using U.S.-flagged vessels. It allows foreign ships to perform dredging and haul dredged material, potentially lowering costs for port operators and shipping companies but reducing work reserved for the U.S. maritime industry.
Why we flagged it
The bill removes a century-old domestic-preference mandate for dredging and dredged-material transport, opening those markets to foreign competition. It is functionally a deregulation of maritime cabotage rules, not a modernization of port infrastructure itself.
What the text implies
- Dredging contracts, historically a stable revenue source for U.S. maritime firms and unions, become subject to international bidding; foreign dredging companies may undercut domestic operators on price, accelerating consolidation or exit of smaller U.S. firms.
- Dredged material (contaminated sediment, spoil) transport to disposal sites may shift to cheaper foreign-flagged vessels, reducing environmental oversight and liability exposure for port authorities if foreign operators operate under less stringent U.S. environmental standards.
The full analysis lists 4 implications of this text.
Who stands to gain
foreign dredging companies; international maritime operators; port authorities (reduced operating costs)