IV 
119TH CONGRESS 
1ST SESSION 
H. RES. 959 
Expressing the sense of the House of Representatives that illicit fentanyl- 
related substances are a weapon of mass destruction and should be 
classified as such, and recognizing President Trump’s efforts to mitigate 
illicit narcotics from entering the United States through such actions 
as signing an Executive Order ‘‘Designating Fentanyl as a Weapon 
of Mass Destruction’’ and declaring the crisis caused by the rise of 
fentanyl a national health emergency. 
IN THE HOUSE OF REPRESENTATIVES 
DECEMBER 18, 2025 
Mr. DUNN of Florida (for himself and Mr. CARTER of Georgia) submitted the 
following resolution; which was referred to the Committee on Energy and 
Commerce, and in addition to the Committee on the Judiciary, for a pe-
riod to be subsequently determined by the Speaker, in each case for con-
sideration of such provisions as fall within the jurisdiction of the com-
mittee concerned 
RESOLUTION 
Expressing the sense of the House of Representatives that 
illicit fentanyl-related substances are a weapon of mass 
destruction and should be classified as such, and recog-
nizing President Trump’s efforts to mitigate illicit nar-
cotics from entering the United States through such 
actions as signing an Executive Order ‘‘Designating 
Fentanyl as a Weapon of Mass Destruction’’ and declar-
ing the crisis caused by the rise of fentanyl a national 
health emergency. 
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•HRES 959 IH 
Whereas the term ‘‘fentanyl-related substance’’ is defined in 
section 1308.11(h)(30)(i) of title 21, Code of Federal 
Regulations, as any substance not otherwise listed under 
another Administration Controlled Substance Code Num-
ber, and for which no exemption or approval is in effect 
under section 505 of the Federal Food, Drug, and Cos-
metic Act (21 U.S.C. 355), that is structurally related to 
fentanyl by one or more of the following modifications, 
including— 
(1) replacement of the phenyl portion of the 
phenethyl group by any monocycle, whether or not fur-
ther substituted in or on the monocycle; 
(2) substitution in or on the phenethyl group with 
alkyl, alkenyl, alkoxyl, hydroxyl, halo, haloalkyl, amino, 
or nitro groups; 
(3) substitution in or on the piperidine ring with 
alkyl, alkenyl, alkoxyl, ester, ether, hydroxyl, halo, 
haloalkyl, amino, or nitro groups; 
(4) replacement of the aniline ring with any aro-
matic monocycle whether or not further substituted in or 
on the aromatic monocycle; or 
(5) replacement of the N–propionyl group by an-
other acyl group; 
Whereas China remains the primary source of illicit fentanyl 
precursors and illicit fentanyl-related substances traf-
ficked through international mail and into the United 
States; 
Whereas transnational criminal organizations in Mexico are 
rapidly increasing the flow of illicit fentanyl-related sub-
stances into the United States over the porous Southern 
United States border; 
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•HRES 959 IH 
Whereas India has emerged as a growing supplier of pre-
cursor chemicals and illicit fentanyl-related substances; 
Whereas, in July 2018, the Federal Bureau of Investigation 
Weapons of Mass Destruction Directorate assessed that 
‘‘fentanyl is very likely a viable option for a chemical 
weapons attack by extremists or criminals’’; 
Whereas illicit fentanyl and illicit fentanyl-related substances 
trafficking operations are growing in sophistication ac-
cording to the Drug Enforcement Administration; 
Whereas a single kilogram of illicit fentanyl or an illicit 
fentanyl-related substance can kill 500,000 individuals; 
Whereas an estimated 71,238 citizens of the United States 
have lost their lives from a synthetic opioid overdose in 
2021 according to the Centers for Disease Control and 
Prevention; 
Whereas illicit fentanyl is the leading driver of the United 
States ongoing opioid crisis, according to the Centers for 
Disease Control and Prevention; and 
Whereas Florida Attorney General Ashley Moody has sent a 
letter to President Biden urging him to classify illicit 
fentanyl as a weapon of mass destruction: Now, there-
fore, be it 
Resolved, That it is the sense of the House of Rep-
resentatives that— 
(1) the President should classify synthetic illicit 
fentanyl-related substances as a weapon of mass de-
struction; and 
(2) illicit fentanyl, and illicit fentanyl-related 
substances, should be permanently placed in sched-
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•HRES 959 IH 
ule I, as defined by section 813 of title 21, United 
States Code. 
Æ 
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