H.R. 2731 (119th)Bill Overview

Great Lakes Mapping Act of 2025

Public Lands and Natural Resources|Public Lands and Natural Resources
Cosponsors
Support
Bipartisan
Introduced
Apr 8, 2025
Discussions
Bill Text
Current stageCommittee

Referred to the House Committee on Natural Resources.

Introduced
Committee
Floor
President
Law
Congressional Activities
01 · The brief
Plain-English summaryWhat this bill actually does

The bill directs NOAA to conduct a collaborative, high-resolution survey and mapping of the lakebeds of the Great Lakes, to be completed by December 31, 2030. It requires collection and cataloging of bathymetric data and metadata, coordination with states and regional entities, and public release of completed maps and related data (with full release, to the extent practicable, within 180 days after completion).

Why people may split

Views on federal spending magnitude and fiscal restraint

Watch point

Relative to its intended legislative type, this bill functions as a focused administrative directive establishing a NOAA-led program to create and publish a high-resolution map of the Great Lakes lakebeds, with coordination requirements and an explicit funding authorization and deadline.

The bill directs NOAA to conduct a collaborative, high-resolution survey and mapping of the lakebeds of the Great Lakes, to be completed by December 31, 2030.

It requires collection and cataloging of bathymetric data and metadata, coordination with states and regional entities, and public release of completed maps and related data (with full release, to the extent practicable, within 180 days after completion).

The bill authorizes $50 million per year for fiscal years 2025–2029 (available through 2030) to carry out the mapping effort.

Passage45/100

Technocratic, bipartisan-friendly subject and modest cost improve prospects, but passage depends on appropriations appetite and Senate floor time.

CredibilityPartially aligned

Relative to its intended legislative type, this bill functions as a focused administrative directive establishing a NOAA-led program to create and publish a high-resolution map of the Great Lakes lakebeds, with coordination requirements and an explicit funding authorization and deadline.

Contention50/100

Views on federal spending magnitude and fiscal restraint

02 · What it does

Who stands to gain, and who may push back.

Likely benefits vs burdens50% / 50%
Likely helpedFederal agencies

These are examples from the analysis, not a ranked list of the most-affected groups.

Likely helped
  • Potential benefitImproved navigation safety could reduce ship groundings and related economic losses.
  • Potential benefitHigh-resolution data would improve resource mapping, habitat characterization, and environmental management.
  • Potential benefitPublic mapping products could speed emergency response and support scientific research and planning.
Likely burdened
  • Federal agenciesThe $250 million authorized total increases federal spending and may displace other budget priorities.
  • Potential burdenPublic release of detailed maps might reveal sensitive submerged infrastructure raising security concerns.
  • Potential burdenSurvey operations using sonar or vessels could disturb aquatic wildlife and habitats temporarily.
03 · Why people split

Why the argument around this bill splits.

Views on federal spending magnitude and fiscal restraint
Progressive85%

Generally supportive: sees the mapping as a public-good investment for conservation, habitat protection, and climate resilience.

Will note missing explicit tribal consultation and may want stronger environmental and equity safeguards; some impacts are speculative.

Leans supportive
Centrist75%

Generally favorable but pragmatic: welcomes improved mapping for navigation, safety, and resource management while watching costs, schedule, and overlap with existing programs.

Will emphasize oversight, clear deliverables, and intergovernmental coordination.

Leans supportive
Conservative40%

Cautious or skeptical: accepts potential navigation and economic benefits but worries about federal spending, bureaucratic expansion, and unintended regulatory uses of the data.

Support depends on demonstrating limited cost and state control.

Split reaction
04 · Can it pass?

The path through Congress.

Introduced

Reached or meaningfully advanced

Committee

Reached or meaningfully advanced

Floor

Still ahead

President

Still ahead

Law

Still ahead

Passage likelihood45/100

Technocratic, bipartisan-friendly subject and modest cost improve prospects, but passage depends on appropriations appetite and Senate floor time.

Scope and complexity
52%
Scopemoderate
24%
Complexitylow
Why this could stall
  • No CBO cost estimate included in text
  • Whether appropriations line items will cover authorized amounts
05 · Recent votes

Recent votes on the bill.

No vote history yet

The bill has not accumulated any surfaced votes yet.

06 · Go deeper

Go deeper than the headline read.

Included on this page

Views on federal spending magnitude and fiscal restraint

Technocratic, bipartisan-friendly subject and modest cost improve prospects, but passage depends on appropriations appetite and Senate floo…

Unlocked analysis

Relative to its intended legislative type, this bill functions as a focused administrative directive establishing a NOAA-led program to create and publish a high-resolution map of the Great Lakes lakebeds, with coordina…

Go beyond the headline summary with full stakeholder mapping, legislative design analysis, passage barriers, and lens-by-lens tradeoff breakdowns.

Perspective breakdownsPassage barriersLegislative design reviewStakeholder impact map
Open full analysis