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S. 364
U.S. Senate•In Senate Committee
Summary
S. 364, the Hearing Protection Act, was introduced in the Senate on Feb 3, 2025 by Sen. Mike Crapo (R) with 36 co-sponsors. It was referred to Finance, and last saw action on Feb 3, 2025: Read twice and referred to the Committee on Finance.
Record
Text
S. 364 has 36 co-sponsors.
sb364/introduced-in-senate.txt119 S364 IS: Hearing Protection ActU.S. Senate2025-02-03text/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.II119th CONGRESS 1st SessionS. 364IN THE SENATE OF THE UNITED STATESFebruary 3, 2025Mr. Crapo (for himself, Mr. Risch , Mr. Cassidy , Mr. Mullin , Mr. Lankford , Mr. Scott of Florida , Mr. Marshall , Mr. Cramer , Mrs. Blackburn , Mr. Boozman , Mr. Justice , Mr. Graham , Mr. Rounds , Mr. Ricketts , Mr. Sheehy , Mr. Tillis , Mr. Lee , Mrs. Hyde-Smith , Mrs. Fischer , Ms. Lummis , Mr. Kennedy , Mr. Moran , Mr. Daines , Mr. Wicker , Mr. Budd , Mr. Hoeven , Mr. Cotton , Mr. Hawley , and Mr. Johnson ) introduced the following bill; which was read twice and referred to the Committee on FinanceA BILLTo amend the Internal Revenue Code of 1986 to remove silencers from the definition of firearms, and for other purposes.1.Short titleThis Act may be cited as the Hearing Protection Act .2.Equal treatment of silencers and firearms(a)In generalSection 5845(a) of the Internal Revenue Code of 1986 is amended by striking (7) any silencer and all that follows through ; and (8) and inserting and (7) .(b)Effective dateThe amendment made by this section shall apply to calendar quarters beginning more than 90 days after the date of the enactment of this Act.3.Treatment of certain silencersSection 5841 of the Internal Revenue Code of 1986 is amended by adding at the end the following:(f)Firearm silencersA person acquiring or possessing a firearm silencer in accordance with chapter 44 of title 18, United States Code, shall be treated as meeting any registration and licensing requirements of the National Firearms Act with respect to such silencer..4.Preemption of certain State laws in relation to firearm silencersSection 927 of title 18, United States Code, is amended by adding at the end the following: Notwithstanding the preceding sentence, a law of a State or a political subdivision of a State that imposes a tax, other than a generally applicable sales or use tax, on making, transferring, using, possessing, or transporting a firearm silencer in or affecting interstate or foreign commerce, or imposes a marking, recordkeeping, or registration requirement with respect to such a firearm silencer, shall have no force or effect. .5.Destruction of recordsNot later than 365 days after the date of the enactment of this Act, the Attorney General shall destroy any registration of a silencer maintained in the National Firearms Registration and Transfer Record pursuant to section 5841 of the Internal Revenue Code of 1986, any application to transfer filed under section 5812 of the Internal Revenue Code of 1986 that identifies the transferee of a silencer, and any application to make filed under section 5822 of the Internal Revenue Code of 1986 that identifies the maker of a silencer.6.Amendments to title 18, United States CodeChapter 44 of title 18, United States Code, is amended—(1)in section 921(a), by striking paragraph (25) and inserting the following:(25)The terms firearm silencer and firearm muffler mean—(A)any device designed or redesigned, made or remade, and intended—(i)to silence, muffle, or diminish the auditory report of a portable firearm; and(ii)to be attached to a portable firearm, directly or through a mount, adaptor, or other device that is not a firearm silencer or firearm muffler; or(B)the outer tube or other single part of any device that—(i)provides the primary housing or is the primary structure for internal sound-reduction components designed or redesigned, made or remade, and intended to silence, muffle, or diminish the auditory report of a portable firearm; and(ii)attaches to a portable firearm, directly or through a mount, adaptor, or other device that is not a firearm silencer or firearm muffler.;(2)in section 922(b)—(A)in paragraph (1), by striking shotgun or rifle the first place it appears and inserting shotgun, rifle, firearm silencer, or firearm muffler ; and(B)in paragraph (3), by striking rifle or shotgun and inserting shotgun, rifle, firearm silencer, or firearm muffler ; and(3)in section 923(i)—(A)by striking Licensed and inserting the following: (1) In the case of a firearm other than a firearm silencer or firearm muffler, licensed ; and(B)by adding at the end the following:(2)In the case of a firearm silencer or firearm muffler, licensed importers and licensed manufacturers shall identify by means of a serial number engraved or cast on the outer tube or other single part that provides the primary housing or primary structure of the firearm silencer or firearm muffler, in such manner as the Attorney General shall by regulations prescribe, each firearm silencer or firearm muffler imported or manufactured by such importer or manufacturer, except that, if marking the outer tube or other single part that provides the primary housing or primary structure is impractical, licensed importers or licensed manufacturers shall submit a request for a marking variance to the Attorney General. The Attorney General shall grant such a request except on showing good cause that marking the firearm silencer or firearm muffler as requested would not further the purposes of this chapter..7.Imposition of tax on firearm silencers or firearm mufflers(a)In generalSection 4181 of the Internal Revenue Code of 1986 is amended by adding at the end of the list relating to Articles taxable at 10 percent the following:Firearm silencers or firearm mufflers.(b)Firearm silencers; firearm mufflersSection 4181 of such Code is amended by adding at the end the following:For purposes of this part, the terms firearm silencer and firearm muffler mean any device for silencing, muffling, or diminishing the report of a portable firearm..(c)Conforming amendments(1)Section 4181 of such Code is amended by striking other than pistols and revolvers and inserting other than articles taxable at 10 percent under this section .(2)Section 4182(b) of such Code is amended by striking firearms, pistols, revolvers, shells, and cartridges and inserting articles described in section 4181 and .(3)Section 4182(c)(1) of such Code is amended by striking or firearm and inserting firearm, firearm silencer, or firearm muffler, .(d)Effective dateThe amendments made by this section shall apply to articles sold by the manufacturer, producer, or importer in any calendar quarter beginning more than 90 days after the date of the enactment of this Act.
Tracker
The tracker indicates the progress of this legislation as it moves through the legislative process.
- Introduced2025-02-03
- Passed Senate
- Passed House
- Conference
- To President
- Became Law
A bill to amend the Internal Revenue Code of 1986 to remove silencers from the definition of firearms, and for other purposes.
Sponsors
Sen. Mike Crapo (R) sponsors S. 364, and 36 members have co-sponsored it, 28 of them from the day it was introduced.

Sen. · R–ID · Sponsor
Introduced Feb 3, 2025

Sen. · R–TN · Co-sponsor
Joined Feb 3, 2025 · Original

Sen. · R–AR · Co-sponsor
Joined Feb 3, 2025 · Original

Sen. · R–NC · Co-sponsor
Joined Feb 3, 2025 · Original

Sen. · R–LA · Co-sponsor
Joined Feb 3, 2025 · Original

Sen. · R–AR · Co-sponsor
Joined Feb 3, 2025 · Original

Sen. · R–ND · Co-sponsor
Joined Feb 3, 2025 · Original

Sen. · R–MT · Co-sponsor
Joined Feb 3, 2025 · Original

Sen. · R–NE · Co-sponsor
Joined Feb 3, 2025 · Original

Sen. · R–SC · Co-sponsor
Joined Feb 3, 2025 · Original
Committees
S. 364 went before 1 committee: Finance.
Actions
S. 364 has taken 2 actions since Feb 3, 2025.
| Chamber | Action | |||
|---|---|---|---|---|
Feb 3, 2025 | Senate | Read twice and referred to the Committee on Finance.Finance Committee | ||
Feb 3, 2025 | — | Introduced in Senate |
Votes
S. 364 has not gone to a roll call.
Related bills
1 bill is related to S. 364.
Titles
S. 364 goes by 3 titles, 1 of them short titles.
- Hearing Protection Act — Display Title
- Hearing Protection Act — Short Title(s) as Introduced
- A bill to amend the Internal Revenue Code of 1986 to remove silencers from the definition of firearms, and for other purposes. — Official Title as Introduced
Lobbying
5 clients hired 5 firms and 26 registered lobbyists who named S. 364 in 34 quarterly filings, 2025 to 2026. Reported under the Lobbying Disclosure Act; a filing’s income covers everything its registrant worked that quarter, so the amounts below are the filings’, not this bill’s.
Filed under Firearms/Guns/Ammunition, Civil Rights/Civil Liberties, Budget/Appropriations, Financial Institutions/Investments/Securities, Law Enforcement/Crime/Criminal Justice, Natural Resources, Veterans, Government Issues.
Clients
Who paid to be heard, by how many filings named the bill.
| Client | Business | State | Firms | Filings | Reported |
|---|---|---|---|---|---|
| NATIONAL SHOOTING SPORTS FOUNDATION | — | District of Columbia | 1 | 9 | — |
| NATIONAL RIFLE ASSOCIATION OF AMERICA | — | Virginia | 1 | 8 | — |
| BRADY CAMPAIGN TO PREVENT GUN VIOLENCE | — | District of Columbia | 1 | 7 | — |
| NATIONAL ASSOCIATION FOR GUN RIGHTS | — | Colorado | 1 | 6 | — |
| GUN OWNERS OF AMERICA INC | — | Virginia | 1 | 4 | — |
Firms
Registrants who filed on the bill, by filings.
| Registrant | Clients | Filings | Reported |
|---|---|---|---|
| NATIONAL SHOOTING SPORTS FOUNDATION | 1 | 9 | — |
| NATIONAL RIFLE ASSOCIATION OF AMERICA | 1 | 8 | — |
| BRADY CAMPAIGN TO PREVENT GUN VIOLENCE | 1 | 7 | — |
| NATIONAL ASSOCIATION FOR GUN RIGHTS | 1 | 6 | — |
| GUN OWNERS OF AMERICA, INC. | 1 | 4 | — |
Lobbyists
Named on the filings that cite the bill. The 20 named most often, of 26.
| Lobbyist | Firms | Clients | Filings |
|---|---|---|---|
| DIANE CIHOTA CASHOUR | 1 | 1 | 9 |
| JOSEPH BLISS | 1 | 1 | 9 |
| LAWRENCE KEANE | 1 | 1 | 9 |
| PATRICK ROTHWELL | 1 | 1 | 9 |
| SEAN SMITH | 1 | 1 | 9 |
| CHRISTOPHER ZEALAND | 1 | 1 | 8 |
| GORDON SPEED | 1 | 1 | 8 |
| HADAN HATCH | 1 | 1 | 8 |
| JOHN COMMERFORD | 1 | 1 | 8 |
| WILLIAM LANE | 1 | 1 | 8 |
| CATHERINE MOUER | 1 | 1 | 7 |
| MARK COLLINS | 1 | 1 | 7 |
| TARANEH SCHARDT | 1 | 1 | 7 |
| TIMOTHY CHURCHILL | 1 | 1 | 7 |
| ANGELO VELTRI | 1 | 1 | 6 |
| DUDLEY BROWN | 1 | 1 | 6 |
| DUSTIN CURTIS | 1 | 1 | 5 |
| AIDAN JOHNSTON | 1 | 1 | 4 |
| ALEX LARGE | 1 | 1 | 4 |
| BENJAMIN SANDERSON | 1 | 1 | 4 |
Filings
The documents themselves, on the Senate’s Lobbying Disclosure site, largest reported first.
| Client | Registrant | Period | Reported | Document |
|---|---|---|---|---|
| NATIONAL SHOOTING SPORTS FOUNDATION | NATIONAL SHOOTING SPORTS FOUNDATION | 2026 first_quarter | $2.3M | 1st Quarter - Amendme… |
| NATIONAL SHOOTING SPORTS FOUNDATION | NATIONAL SHOOTING SPORTS FOUNDATION | 2026 first_quarter | $2.3M | 1st Quarter - Report |
| NATIONAL SHOOTING SPORTS FOUNDATION | NATIONAL SHOOTING SPORTS FOUNDATION | 2026 second_quarter | $2M | 2nd Quarter - Amendme… |
| NATIONAL SHOOTING SPORTS FOUNDATION | NATIONAL SHOOTING SPORTS FOUNDATION | 2026 second_quarter | $2M | 2nd Quarter - Report |
| NATIONAL SHOOTING SPORTS FOUNDATION | NATIONAL SHOOTING SPORTS FOUNDATION | 2025 first_quarter | $1.9M | 1st Quarter - Report |
| NATIONAL SHOOTING SPORTS FOUNDATION | NATIONAL SHOOTING SPORTS FOUNDATION | 2025 third_quarter | $1.8M | 3rd Quarter - Report |
| NATIONAL SHOOTING SPORTS FOUNDATION | NATIONAL SHOOTING SPORTS FOUNDATION | 2025 second_quarter | $1.8M | 2nd Quarter - Report |
| NATIONAL SHOOTING SPORTS FOUNDATION | NATIONAL SHOOTING SPORTS FOUNDATION | 2025 fourth_quarter | $1.6M | 4th Quarter - Amendme… |
| NATIONAL SHOOTING SPORTS FOUNDATION | NATIONAL SHOOTING SPORTS FOUNDATION | 2025 fourth_quarter | $1.6M | 4th Quarter - Report |
| GUN OWNERS OF AMERICA INC | GUN OWNERS OF AMERICA, INC. | 2025 second_quarter | $679K | 2nd Quarter - Report |
| GUN OWNERS OF AMERICA INC | GUN OWNERS OF AMERICA, INC. | 2025 first_quarter | $650.4K | 1st Quarter - Report |
| GUN OWNERS OF AMERICA INC | GUN OWNERS OF AMERICA, INC. | 2025 fourth_quarter | $545.7K | 4th Quarter - Report |
| NATIONAL RIFLE ASSOCIATION OF AMERICA | NATIONAL RIFLE ASSOCIATION OF AMERICA | 2026 second_quarter | $540K | 2nd Quarter - Report |
| NATIONAL RIFLE ASSOCIATION OF AMERICA | NATIONAL RIFLE ASSOCIATION OF AMERICA | 2025 first_quarter | $530K | 1st Quarter - Report |
| NATIONAL RIFLE ASSOCIATION OF AMERICA | NATIONAL RIFLE ASSOCIATION OF AMERICA | 2026 first_quarter | $520K | 1st Quarter - Report |
| NATIONAL RIFLE ASSOCIATION OF AMERICA | NATIONAL RIFLE ASSOCIATION OF AMERICA | 2025 second_quarter | $480K | 2nd Quarter - Amendme… |
| NATIONAL RIFLE ASSOCIATION OF AMERICA | NATIONAL RIFLE ASSOCIATION OF AMERICA | 2025 second_quarter | $480K | 2nd Quarter - Amendme… |
| NATIONAL RIFLE ASSOCIATION OF AMERICA | NATIONAL RIFLE ASSOCIATION OF AMERICA | 2025 second_quarter | $480K | 2nd Quarter - Report |
| GUN OWNERS OF AMERICA INC | GUN OWNERS OF AMERICA, INC. | 2025 third_quarter | $465.1K | 3rd Quarter - Report |
| NATIONAL RIFLE ASSOCIATION OF AMERICA | NATIONAL RIFLE ASSOCIATION OF AMERICA | 2025 fourth_quarter | $450K | 4th Quarter - Report |
Classification
The Congressional Research Service files S. 364 under Taxation, one of its 31 policy areas.
CRS Subjects
CRS assigns every bill one policy area from its 31; S. 364’s is Taxation.
s364/policy-areas.txtSource: congress.gov · legiscan.com
