Washington HB 2320: Concerning high THC cannabis products.

Bill Text

CERTIFICATION OF ENROLLMENT
ENGROSSED SUBSTITUTE HOUSE BILL 2320
Chapter 203, Laws of 2026
69th Legislature
2026 Regular Session
FIREARM MANUFACTURING—3D PRINTERS AND CNC MILLING MACHINES
EFFECTIVE DATE: March 24, 2026—Except for section 3, which takes
effect June 30, 2027.
Passed by the House March 11, 2026
Yeas 58 Nays 38
LAURIE JINKINS
Speaker of the House of
Representatives
Passed by the Senate February 28,
2026
Yeas 29 Nays 18
DENNY HECK
President of the Senate
CERTIFICATE
I, Bernard Dean, Chief Clerk of the
House of Representatives of the
State of Washington, do hereby
certify that the attached is
ENGROSSED SUBSTITUTE HOUSE BILL
2320 as passed by the House of
Representatives and the Senate on
the dates hereon set forth.
BERNARD DEAN
Chief Clerk
Approved March 24, 2026 2:06 PM FILED
March 25, 2026
BOB FERGUSON
Governor of the State of Washington
Secretary of State
State of Washington

AN ACT Relating to the regulation of firearm manufacturing that 1
involves the use of three-dimensional printers, computer numerical 2
control milling machines, or digital firearm manufacturing code; 3
amending RCW 9.41.010, 9.41.190, 9.41.325, 9.41.326, and 9.41.327; 4
reenacting and amending RCW 9.41.010; creating a new section; 5
providing an effective date; providing an expiration date; and 6
declaring an emergency.7
BE IT ENACTED BY THE LEGISLATURE OF THE STATE OF WASHINGTON:8
NEW SECTION. Sec. 1. The legislature finds the production of 9
undetectable and untraceable firearms and firearm components through 10
three-dimensional printing and computer numerical control (CNC) 11
milling presents a growing threat to public safety. The legislature 12
further finds the production of firearms by unlicensed manufacturers 13
allows prohibited individuals to evade background checks and obtain 14
firearms they could not otherwise lawfully obtain. The legislature 15
intends to address these problems by strengthening the state's 16
existing firearms laws.17
Sec. 2. RCW 9.41.010 and 2024 c 289 s 1 and 2024 c 62 s 32 are 18
each reenacted and amended to read as follows:19
ENGROSSED SUBSTITUTE HOUSE BILL 2320
AS AMENDED BY THE SENATE
Passed Legislature - 2026 Regular Session
State of Washington 69th Legislature 2026 Regular Session
By House Civil Rights & Judiciary (originally sponsored by
Representatives Salahuddin, Peterson, Berry, Taylor, Farivar, Reed,
Ramel, Santos, Obras, Parshley, Leavitt, Nance, Callan, Zahn, Street,
Ryu, Doglio, Ormsby, Berg, Reeves, Macri, Fosse, Hill, and Pollet)
READ FIRST TIME 02/04/26.
p. 1 ESHB 2320.SL

Unless the context clearly requires otherwise, the definitions in 1
this section apply throughout this chapter.2
(1) "Antique firearm" means a firearm or replica of a firearm not 3
designed or redesigned for using rim fire or conventional center fire 4
ignition with fixed ammunition and manufactured in or before 1898, 5
including any matchlock, flintlock, percussion cap, or similar type 6
of ignition system and also any firearm using fixed ammunition 7
manufactured in or before 1898, for which ammunition is no longer 8
manufactured in the United States and is not readily available in the 9
ordinary channels of commercial trade.10
(2)(a) "Assault weapon" means:11
(i) Any of the following specific firearms regardless of which 12
company produced and manufactured the firearm:13
14 AK-47 in all forms
15 AK-74 in all forms
16 Algimec AGM-1 type semiautomatic
17 American Arms Spectre da semiautomatic carbine
18 AR15, M16, or M4 in all forms
19 AR 180 type semiautomatic
20 Argentine L.S.R. semiautomatic
21 Australian Automatic
22 Auto-Ordnance Thompson M1 and 1927 semiautomatics
23 Barrett .50 cal light semiautomatic
24 Barrett .50 cal M87
25 Barrett .50 cal M107A1
26 Barrett REC7
27 Beretta AR70/S70 type semiautomatic
28 Bushmaster Carbon 15
29 Bushmaster ACR
30 Bushmaster XM-15
31 Bushmaster MOE
32 Calico models M100 and M900
33 CETME Sporter
34 CIS SR 88 type semiautomatic
p. 2 ESHB 2320.SL

1 Colt CAR 15
2 Daewoo K-1
3 Daewoo K-2
4 Dragunov semiautomatic
5 Fabrique Nationale FAL in all forms
6 Fabrique Nationale F2000
7 Fabrique Nationale L1A1 Sporter
8 Fabrique Nationale M249S
9 Fabrique Nationale PS90
10 Fabrique Nationale SCAR
11 FAMAS .223 semiautomatic
12 Galil
13 Heckler & Koch G3 in all forms
14 Heckler & Koch HK-41/91
15 Heckler & Koch HK-43/93
16 Heckler & Koch HK94A2/3
17 Heckler & Koch MP-5 in all forms
18 Heckler & Koch PSG-1
19 Heckler & Koch SL8
20 Heckler & Koch UMP
21 Manchester Arms Commando MK-45
22 Manchester Arms MK-9
23 SAR-4800
24 SIG AMT SG510 in all forms
25 SIG SG550 in all forms
26 SKS
27 Spectre M4
28 Springfield Armory BM-59
29 Springfield Armory G3
30 Springfield Armory SAR-8
31 Springfield Armory SAR-48
32 Springfield Armory SAR-3
p. 3 ESHB 2320.SL

1 Springfield Armory M-21 sniper
2 Springfield Armory M1A
3 Smith & Wesson M&P 15
4 Sterling Mk 1
5 Sterling Mk 6/7
6 Steyr AUG
7 TNW M230
8 FAMAS F11
9 Uzi 9mm carbine/rifle
(ii) A semiautomatic rifle that has an overall length of