S. 416 (119th)Bill Overview

Marsh-Billings-Rockefeller National Historical Park Establishment Act Amendments Act of 2025

Public Lands and Natural Resources|FarmlandForests, forestry, trees
Cosponsors
Support
Democratic
Introduced
Feb 5, 2025
Discussions
Bill Text
Current stageCommittee

Read twice and referred to the Committee on Energy and Natural Resources.

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

This bill amends the Marsh-Billings-Rockefeller National Historical Park Establishment Act to expand the park boundary per an August 2023 map, explicitly include Mt. Tom, Billings Farm (protection zone), and the King Farm.

Why people may split

Liberals emphasize conservation, education, and stewardship institute benefits

Watch point

Relative to its intended legislative type, this bill provides concrete statutory amendments to expand park boundaries, specify acquisition methods, define permitted uses for newly acquired land (King Farm), and establish a National Park Service Stewardship Institute as a program of the park.

This bill amends the Marsh-Billings-Rockefeller National Historical Park Establishment Act to expand the park boundary per an August 2023 map, explicitly include Mt.

Tom, Billings Farm (protection zone), and the King Farm.

It updates authorized land-acquisition methods (donation, purchase from willing sellers, federal transfer, exchange), requires reciprocal access rights for King Farm, and permits agricultural, forestry, conservation, and educational uses if the Secretary acquires King Farm.

Passage65/100

Narrow, non-controversial scope and built-in concessions (willing-seller purchases, farm uses) raise likelihood absent fiscal or local opposition.

CredibilityPartially aligned

Relative to its intended legislative type, this bill provides concrete statutory amendments to expand park boundaries, specify acquisition methods, define permitted uses for newly acquired land (King Farm), and establish a National Park Service Stewardship Institute as a program of the park. It integrates with existing law by amending specific U.S.C. sections and referencing dated maps.

Contention30/100

Liberals emphasize conservation, education, and stewardship institute benefits

02 · What it does

Who stands to gain, and who may push back.

Likely benefits vs burdens50% / 50%
Local governmentsFederal agencies · Local governments

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

Likely helped
  • Potential benefitProtects historic mansion, associated buildings, Mt. Tom, and surrounding landscape under National Park stewardship.
  • Local governmentsPermits continued agricultural and forestry operations on King Farm, supporting local farming livelihoods and tradition…
  • Local governmentsExpands park boundary, potentially attracting more visitors and local tourism revenue.
Likely burdened
  • Federal agenciesIncreases federal acquisition and management costs without specified funding sources.
  • Local governmentsAdds federal oversight that could change local land management expectations and regulatory interactions.
  • Potential burdenMay reduce private development options or alter property values in newly included areas.
03 · Why people split

Why the argument around this bill splits.

Liberals emphasize conservation, education, and stewardship institute benefits
Progressive90%

Overall supportive.

The expansion protects historic landscapes, preserves working-farm character, and creates a stewardship institute to advance conservation and education.

Concern will focus on ensuring strong public funding and community engagement to implement protections equitably.

Leans supportive
Centrist75%

Cautiously supportive.

The bill clarifies boundaries, limits acquisition to willing sellers, and balances conservation with ongoing agricultural use.

Main concerns are clear funding, operational responsibilities, and minimizing local disruption.

Leans supportive
Conservative40%

Skeptical to mixed.

While the bill respects willing-seller acquisitions and preserves working agriculture, it expands federal land holdings and creates a new federal program that may increase bureaucracy and taxpayer costs.

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 likelihood65/100

Narrow, non-controversial scope and built-in concessions (willing-seller purchases, farm uses) raise likelihood absent fiscal or local opposition.

Scope and complexity
24%
Scopenarrow
24%
Complexitylow
Why this could stall
  • No cost estimate or funding authorization included
  • Unknown willingness of landowners to sell or donate parcels
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

Liberals emphasize conservation, education, and stewardship institute benefits

Narrow, non-controversial scope and built-in concessions (willing-seller purchases, farm uses) raise likelihood absent fiscal or local oppo…

Unlocked analysis

Relative to its intended legislative type, this bill provides concrete statutory amendments to expand park boundaries, specify acquisition methods, define permitted uses for newly acquired land (King Farm), and establis…

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
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