In the Senate of the United States, 
December 12, 2024. 
Resolved, That the bill from the House of Representa-
tives (H.R. 8663) entitled ‘‘An Act to require the Science and 
Technology Directorate in the Department of Homeland Se-
curity to develop greater capacity to detect, identify, and dis-
rupt illicit substances in very low concentrations.’’, do pass 
with the following 
AMENDMENTS: 
Strike all after the enacting clause and insert the 
following: 
SECTION 1. SHORT TITLES. 
This Act may be cited as the ‘‘Detection Equipment 
and Technology Evaluation to Counter the Threat of 
Fentanyl and Xylazine Act of 2024’’ or the ‘‘DETECT 
Fentanyl and Xylazine Act of 2024’’.
† HR 8663 EAS 
SEC. 2. ENHANCING THE CAPACITY TO DETECT AND IDEN-
TIFY 
DRUGS 
SUCH 
AS 
FENTANYL 
AND 
XYLAZINE. 
Section 302 of the Homeland Security Act of 2002 (6 
U.S.C. 182) is amended— 
(1) in paragraph (13), by striking ‘‘and’’ at the 
end; 
(2) in paragraph (14), by striking the period at 
the end and inserting ‘‘; and’’; and 
(3) by adding at the end the following: 
‘‘(15) carrying out, in coordination with the 
Drug Enforcement Administration, research, develop-
ment, testing, evaluation, and cost-benefit analyses to 
improve the safety, effectiveness, and efficiency of 
equipment and the effectiveness and efficiency of ref-
erence libraries for use by Federal, State, local, Trib-
al, and territorial law enforcement agencies for the 
accurate detection of drugs, such as fentanyl and 
xylazine, including— 
‘‘(A) portable equipment that can detect 
and identify drugs with minimal or no handling 
of the sample; 
‘‘(B) equipment that can separate complex 
mixtures containing low concentrations of drugs 
and high concentrations of cutting agents into
† HR 8663 EAS 
their component parts to enable signature extrac-
tion for field identification and detection; and 
‘‘(C) technologies that use machine learning 
or artificial intelligence (as defined in section 
5002 of the National Artificial Intelligence Ini-
tiative Act of 2020 (15 U.S.C. 9401)) and other 
techniques to predict whether the substances in a 
sample are controlled substance analogues or 
other new psychoactive substances not yet in-
cluded in available reference libraries.’’. 
SEC. 3. REQUIREMENTS. 
In carrying out section 302(15) of the Homeland Secu-
rity Act of 2002, as added by section 2, the Under Secretary 
for Science and Technology shall— 
(1) follow the recommendations, guidelines, and 
best practices described in the Artificial Intelligence 
Risk Management Framework (NIST AI 100–1) or 
any successor document published by the National In-
stitute of Standards and Technology; and 
(2) establish the Directorate of Science and Tech-
nology’s research, development, testing, evaluation, 
and cost-benefit analysis priorities under such section 
302(15) based on the latest available information, in-
cluding specific drugs identified as threats in—
† HR 8663 EAS 
(A) the latest Homeland Threat Assessment 
published by the Department of Homeland Secu-
rity; 
(B) the latest State and Territory Report on 
Enduring and Emerging Threats published by 
the Drug Enforcement Administration; or 
(C) any successor documents. 
SEC. 4. RULE OF CONSTRUCTION. 
Nothing in this Act may be construed to limit the au-
thority of agencies currently managing, overseeing, or other-
wise involved in drug equipment and reference libraries. 
Amend the title so as to read: ‘‘An Act to require 
the Science and Technology Directorate in the Depart-
ment of Homeland Security to develop greater capacity to 
detect and identify illicit substances in very low con-
centrations.’’. 
Attest: 
Secretary.