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H.R. 9191
U.S. House•In House Committee
Summary
H.R. 9191, the National Fossil Act, was introduced in the House on Jun 8, 2026 by Rep. Erin Houchin (R) with 9 co-sponsors. It last saw action on Jul 15, 2026: Ordered to be Reported (Amended) by the Yeas and Nays: 22 - 1.
Record
Text
H.R. 9191 has 9 co-sponsors.
hb9191/introduced-in-house.txt119 HR 9191 IH: National Fossil ActU.S. House of Representatives2026-06-08text/xmlENPursuant to Title 17 Section 105 of the United States Code, this file is not subject to copyright protection and is in the public domain.I 119th CONGRESS 2d Session H. R. 9191 IN THE HOUSE OF REPRESENTATIVES June 8, 2026 Mrs. Houchin (for herself, Mrs. Dingell , Mr. Johnson of South Dakota , Ms. Maloy , Mr. Langworthy , and Mr. Mann ) introduced the following bill; which was referred to the Committee on the Judiciary A BILLTo amend chapter 3 of title 36, United States Code, to designate the American mastodon as the national fossil mammal and the Tyrannosaurus rex as the national fossil dinosaur of the United States, and for other purposes.1.Short titleThis Act may be cited as the National Fossil Act .2.National fossil mammal and dinosaur of the United States(a)DesignationChapter 3 of title 36, United States Code, is amended by adding at the end the following:307.National fossil mammal and dinosaurThe fossil of—(1)the genus Mammut americanum, commonly known as the American mastodon, is the national fossil mammal; and(2)the Tyrannosaurus rex is the national fossil dinosaur..(b)Conforming amendmentsThe table of sections for chapter 3 of title 36, United States Code, is amended—(1)in the chapter heading, by strikingand bird and insertingbird, and fossil ; and(2)by adding at the end the following:307. National fossil mammal and dinosaur..
Tracker
The tracker indicates the progress of this legislation as it moves through the legislative process.
- Introduced2026-06-08
- Passed House
- Passed Senate
- Conference
- To President
- Became Law
To amend chapter 3 of title 36, United States Code, to designate the American mastodon as the national fossil mammal and the Tyrannosaurus rex as the national fossil dinosaur of the United States, and for other purposes.
Sponsors
Rep. Erin Houchin (R) sponsors H.R. 9191, and 9 members have co-sponsored it, 5 of them from the day it was introduced.

Rep. · R–IN-9 · Sponsor
Introduced Jun 8, 2026

Rep. · D–MI-6 · Co-sponsor
Joined Jun 8, 2026 · Original

Rep. · R–SD-0 · Co-sponsor
Joined Jun 8, 2026 · Original

Rep. · R–NY-23 · Co-sponsor
Joined Jun 8, 2026 · Original

Rep. · R–UT-2 · Co-sponsor
Joined Jun 8, 2026 · Original

Rep. · R–KS-1 · Co-sponsor
Joined Jun 8, 2026 · Original

Rep. · R–WI-6 · Co-sponsor
Joined Jun 30, 2026

Rep. · R–MO-3 · Co-sponsor
Joined Jun 30, 2026

Rep. · D–PA-5 · Co-sponsor
Joined Jun 30, 2026

Rep. · R–TX-24 · Co-sponsor
Joined Jul 13, 2026
Committees
H.R. 9191 went before 1 committee: Judiciary.
Actions
H.R. 9191 has taken 4 actions since Jun 8, 2026, the latest on Jul 15, 2026.
| Chamber | Action | |||
|---|---|---|---|---|
Jul 15, 2026 | House | Committee Consideration and Mark-up Session HeldJudiciary Committee | ||
Jul 15, 2026 | House | Ordered to be Reported (Amended) by the Yeas and Nays: 22 - 1.Judiciary Committee | ||
Jun 8, 2026 | House | Introduced in House | ||
Jun 8, 2026 | House | Referred to the House Committee on the Judiciary.Judiciary Committee |
Votes
H.R. 9191 has not gone to a roll call.
Titles
H.R. 9191 goes by 3 titles, 1 of them short titles.
- To amend chapter 3 of title 36, United States Code, to designate the American mastodon as the national fossil mammal and the Tyrannosaurus rex as the national fossil dinosaur of the United States, and for other purposes. — Official Title as Introduced
- National Fossil Act — Display Title
- National Fossil Act — Short Title(s) as Introduced
Cost estimate
The Congressional Budget Office has filed 1 estimate for H.R. 9191, the latest on Aug 18, 2026.
- H.R. 9191, National Fossil Act of 2026 — 2026-08-18As ordered reported by the House Committee on the Judiciary on July 15, 2026
Classification
The Congressional Research Service files H.R. 9191 under Congress, one of its 31 policy areas, and gives it 3 legislative subjects.
CRS Subjects
CRS assigns every bill one policy area from its 31; H.R. 9191’s is Congress.
hr9191/policy-areas.txtLegislative Subjects
H.R. 9191 carries 3 of CRS’s legislative subjects, from Mammals to Reptiles.
hr9191/subjects.txtSource: congress.gov · legiscan.com