H.R. 4747 (119th)Bill Overview

To amend the Dayton Aviation Heritage Preservation Act of 1992 to adjust the boundary of the Dayton Aviation Heritage National Historical Park, and for other purposes.

Public Lands and Natural Resources|Public Lands and Natural Resources
Cosponsors
Support
Bipartisan
Introduced
Jul 23, 2025
Discussions
Bill Text
Current stageCommittee

Referred to the House Committee on Natural Resources.

Introduced
Committee
Floor
President
Law
Congressional Activities
01 · The brief

This bill amends the Dayton Aviation Heritage Preservation Act of 1992 to adjust the boundary of the Dayton Aviation Heritage National Historical Park by adding approximately one acre of land in Dayton, Ohio, as depicted on a February 2023 map.

The text adds a new subsection to the statute that formally includes the approximately 1-acre parcel within the park boundary.

The bill text does not specify acquisition method, source of funding, or other implementation details in the excerpt provided.

Passage75/100

On content alone, this is a narrow, technical amendment that typically faces low substantive opposition and minimal fiscal impact. Such local boundary additions often advance through committee and floor consideration with bipartisan support or by unanimous consent, making them relatively likely to be enacted. The score reflects routine likelihood tempered by procedural factors (especially in the Senate) and remaining uncertainties about acquisition and funding.

CredibilityPartially aligned

Relative to its intended legislative type, this bill is a narrowly targeted administrative/operational amendment that directly inserts a boundary adjustment into existing statute. It clearly identifies the statutory location for the change and the approximate acreage, but it provides minimal implementation, fiscal, and contingency detail.

Contention25/100

Degree of comfort with federal boundary expansion and the federal footprint — conservatives are more cautious while the left is welcoming.

02 · What it does

Who stands to gain, and who may push back.

Who this appears to help vs burden50% / 50%
Local governments · Federal agenciesFederal agencies · Local governments
Likely helped
  • Targeted stakeholdersExtends National Park Service jurisdiction and legal protection to the additional parcel, which supporters could argue…
  • Local governmentsMay improve cultural tourism and local visitation by formally incorporating another historically relevant site into the…
  • Federal agenciesCould make the parcel eligible for federal maintenance, preservation programs, and grant funding administered by the NP…
Likely burdened
  • Federal agenciesIf the addition requires federal acquisition, critics might cite potential costs to the federal government (purchase pr…
  • Local governmentsIf the land is privately owned or later acquired by the federal government, property owners or local governments could…
  • Local governmentsIf federal ownership or a change in tax status occurs, local governments could see a small reduction in property tax re…
03 · Why people split

Why the argument around this bill splits.

Degree of comfort with federal boundary expansion and the federal footprint — conservatives are more cautious while the left is welcoming.
Progressive90%

A mainstream progressive would likely view the bill favorably as a modest expansion of a nationally significant historic park that preserves the Wright Brothers’ legacy and enhances public access to cultural heritage.

They would appreciate federal protection for a site of educational and historical importance and possible local economic benefits from tourism.

They would also want assurance that the addition supports public access, equitable interpretation, and adequate federal funding for maintenance.

Leans supportive
Centrist75%

A pragmatic moderate would generally regard this as a small, low‑stakes boundary adjustment that preserves a historic site while likely imposing limited fiscal or regulatory burden.

They would want clarity about how the land is to be acquired, any costs to the federal government or local taxpayers, and whether local stakeholders and governments support the change.

If acquisition is voluntary or donated and recurring costs are minimal, a centrist would probably support the bill; if it requires new, significant appropriations or contentious takings, they would seek changes.

Leans supportive
Conservative60%

A mainstream conservative would be cautious about any expansion of federal park boundaries because it increases the federal footprint and could create new spending or regulatory effects.

However, because this is a very small (approximately 1 acre) addition to a historically significant site associated with American innovation, many conservatives may view it as an acceptable or even positive symbolic action so long as it does not involve compelled takings or significant taxpayer costs.

They would press for protections of property rights, local control, and assurance that the addition won’t lead to further federal encroachment or new unfunded mandates.

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 likelihood75/100

On content alone, this is a narrow, technical amendment that typically faces low substantive opposition and minimal fiscal impact. Such local boundary additions often advance through committee and floor consideration with bipartisan support or by unanimous consent, making them relatively likely to be enacted. The score reflects routine likelihood tempered by procedural factors (especially in the Senate) and remaining uncertainties about acquisition and funding.

Scope and complexity
24%
Scopenarrow
24%
Complexitylow
Why this could stall
  • The bill text does not state how the added land will be acquired (donation, purchase, transfer, or eminent domain) or whether federal funds are required, leaving potential fiscal and legal questions unresolved.
  • The map reference in the text is noted but the bill excerpt contains placeholders; availability and clarity of the official map could matter for implementation and review.
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

Degree of comfort with federal boundary expansion and the federal footprint — conservatives are more cautious while the left is welcoming.

On content alone, this is a narrow, technical amendment that typically faces low substantive opposition and minimal fiscal impact. Such loc…

Unlocked analysis

Relative to its intended legislative type, this bill is a narrowly targeted administrative/operational amendment that directly inserts a boundary adjustment into existing statute. It clearly identifies the statutory loc…

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