HR 4219 United States House · 119th Congress

National Wildlife Refuge System Invasive Species Strike Team Act of 2025

This bill establishes a formal National Wildlife Refuge System Invasive Species Strike Team Program under the U.S. Fish and Wildlife Service. It requires regional teams trained in early detection and rapid response to prevent, control, and eradicate invasive species harming native wildlife and habitats on or near National Wildlife Refuges, using science-based methods and partnerships with states, tribes, and local entities. The program is funded at $15 million annually from 2026-2030 and mandates annual reports to Congress on progress in managing priority invasive species. It directly affects National Wildlife Refuge lands and adjacent properties by coordinating invasive species management with nearby landowners and agencies.
Sub-Topics: Wildlife
Bill status passed 3 of 5 stages cleared
Introduction
Jun 2025
Committee Review
Sep 2026
House Passage
Sep 2026
Senate Passage
President
Introduced Jun 27, 2025 Last action Sep 15, 2026
Maddy AI version diff · 1 comparison

What changed between versions

Introduced in House → Engrossed in House · 7 edits · Sep 14, 2026
MODERATE
The Engrossed version reduces annual funding from $15 million to $10 million and shifts the authorization window from FY2026-2030 to FY2027-2033. It adds a new requirement that actions on lands adjacent to refuges may only occur at the landowner's request, broadens definitions by adding terms for eradication, prevention, and rapid response, and expands coordination duties to include Tribal agencies.
FISCAL

Annual authorization of appropriations reduced from $15,000,000 to $10,000,000 per year, and the funding period shifted from fiscal years 2026 through 2030 to fiscal years 2027 through 2033.

REQUIREMENT

New requirement (E) mandates that identification of and response to priority invasive species threats on lands and waters adjacent to the National Wildlife Refuge System may only be carried out at the request of the owner of such lands or waters, creating a new consent-based limitation on strike team actions off refuge land.

The list of strike team duties was simplified from 'prevention, early detection surveillance, eradication, containment, mapping, monitoring, and active management' to 'prevention, early detection, rapid response, and management,' consolidating several activities under the newly defined terms.

SCOPE

The provision allowing the Secretary to enter agreements with other entities was broadened from specifically naming Federal departments, State, Tribal, and Territorial agencies to any entity described in the outreach subparagraph (A), while adding the qualifier 'as appropriate.'

Coordination of management actions now explicitly includes Tribal agencies alongside State agencies, expanding the entities with which strike teams must coordinate on adjacent lands.

The standalone 'Purpose' subsection was removed; the bill no longer states its purpose in a separate paragraph but instead goes directly to authorizing the program.

DEFINITION

Three new definitions were added: 'eradication' (removal or destruction of an entire population confirmed through post-treatment monitoring), 'prevention' (actions such as outreach, education, or inspection stations to stop introduction or spread), and 'rapid response' (a process to eradicate or contain a founding or incipient population from a specific location).

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Full legislative history

Actions timeline

Total actions
19
Key actions
5
Committee
7
Amendments
3
Sep 15, 2026
Committee
Received in the Senate and Read twice and referred to the Committee on Environment and Public Works.
upper
Sep 14, 2026
Introduced
On motion to suspend the rules and pass the bill, as amended Agreed to by the Yeas and Nays: (2/3 required): 371 - 33 (Roll no. 296). (text: CR H5560-5561)
lower
Sep 14, 2026
Lower · Passed
Passed/agreed to in House: On motion to suspend the rules and pass the bill, as amended Agreed to by the Yeas and Nays: (2/3 required): 371 - 33 (Roll no. 296). (text: CR H5560-5561)
lower
Sep 14, 2026
Introduced
Mr. Westerman moved to suspend the rules and pass the bill, as amended.
lower
Aug 27, 2026
Lower · Passed
Reported (Amended) by the Committee on Natural Resources. H. Rept. 119-771.
lower
Jul 22, 2026
Introduced
Ordered to be Reported in the Nature of a Substitute (Amended) by Unanimous Consent.
lower
Jul 22, 2026
Lower · Passed
Committee Consideration and Mark-up Session Held
lower
Jul 22, 2026
Lower · Passed
Subcommittee on Water, Wildlife and Fisheries Discharged
lower
Apr 16, 2026
Lower · Passed
Subcommittee Hearings Held
lower
Apr 9, 2026
Committee
Referred to the Subcommittee on Water, Wildlife and Fisheries.
lower
Jun 27, 2025
Committee
Referred to the House Committee on Natural Resources.
lower
Jun 27, 2025
Introduced
Introduced in House
lower
1 primary · 1 co-sponsor

Sponsors