Congress quietly hands maritime industry $billions in tax credits with minimal oversight.
S. 1536 — Building Ships in America Act of 2025 · Filed by Mark Kelly (D-AZ) · 4 cosponsors · Introduced Apr 30, 2025 · Referred to committee
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What it does
This bill creates multiple tax credits and incentives for U.S. maritime industries: a 30% investment credit for building or repairing vessels, a 25% credit for shipyard construction, tax-free maritime security payments, expanded capital construction fund rules, and designates up to 100 'maritime prosperity zones' as opportunity zones for tax-advantaged investment. It also eliminates a 30-day domestic operation limit for shipping companies and exempts student incentive payments to maritime workers from income tax.
Why we flagged it
The bill's core mechanism is a series of tax credits (30% vessel investment credit, 25% shipyard credit), tax exclusions, and opportunity-zone designations that directly reduce tax liability for maritime companies. The 'national defense' framing is a sympathetic wrapper around what is functionally a targeted industry tax cut.
- Section 10 (Maritime Fuel Tax Parity) amends fuel excise tax rules unrelated to vessel/shipyard credits or capital construction funds.
- Section 11 (Maritime Prosperity Zones) creates new opportunity-zone designations with modified start dates, substantively separate from vessel/shipyard investment mechanics.
What the text implies
- The 30% vessel investment credit applies to both U.S.-flag and U.S.-owned foreign-flag vessels, allowing tax benefits for ships registered abroad if owned by U.S. citizens or controlled entities — potentially subsidizing offshore registry strategies.
- Section 8 eliminates the 30-day domestic operation limit for shipping companies, allowing indefinite foreign-commerce operations while retaining tax benefits — a significant expansion of subsidy eligibility with no public accountability.
The full analysis lists 5 implications of this text.
Who stands to gain
maritime shipping companies (vessel owners); shipyard operators and construction firms; cargo handling equipment manufacturers