safety and enforcement oversight coordination of LNG fa-
cilities. 
(f) DEFINITIONS.—In this section: 
(1) COVERED
AGENCY.—The term ‘‘covered 
agency’’ means each of the following: 
(A) The Pipeline and Hazardous Materials 
Safety Administration. 
(B) The Federal Energy Regulatory Com-
mission. 
(C) The Department of Energy. 
(D) The Occupational Safety and Health 
Administration. 
(E) The Coast Guard. 
(2) LNG.—The term ‘‘LNG’’ means liquefied 
natural gas. 
(3) WORKING
GROUP.—The term ‘‘Working 
Group’’ means the Liquefied Natural Gas Regu-
latory Safety Working Group established under sub-
section (a). 
SEC. 22. HYDROGEN STUDY. 
(a) IN GENERAL.—The Comptroller General of the 
United States shall conduct a study on existing gas pipe-
line facilities that transport a gas blend, containing great-
er than 5 percent hydrogen by volume, to identify the 
changes that operators have implemented to such gas 
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pipeline facilities in order to transport such a gas blend 
safely. 
(b) ADDITIONAL CONTENTS.—The study under sub-
section (a) shall include— 
(1) an identification of any technical challenges 
with repurposing existing natural gas pipeline infra-
structure to allow such natural gas pipeline infra-
structure to be used for distributing gas blends de-
scribed in subsection (a); and 
(2) an examination of the changes made by 
international operators to gas pipeline facilities to 
transport gas blends described in subsection (a) 
safely, including changes made to pipeline facilities 
in the United Kingdom, Canada, Europe, Australia, 
and Hong Kong. 
(c) CONSIDERATIONS.—In conducting the study 
under subsection (a), the Comptroller General shall con-
sider— 
(1) changes that domestic and international op-
erators of gas pipeline facilities have implemented to 
safely transport a gas blend described in subsection 
(a), including changes to odorants and leak-detection 
methods, pipeline materials, metering, and oper-
ational standards used by such operators to account 
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for the operation and integrity of gas pipeline facili-
ties; and 
(2) how such operators have taken into account 
the effect of transporting a gas blend described in 
subsection (a) on gas pipeline facility infrastructure, 
including— 
(A) gas pipeline facility materials, includ-
ing cast iron, steel, composite pipe, and plastic 
pipe; and 
(B) components of a gas pipeline facility, 
including valves and meters. 
(d) REPORT.—Not later than 1 year after the date 
of enactment of this Act, the Comptroller General shall 
submit to the Committee on Energy and Commerce and 
the Committee on Transportation and Infrastructure of 
the House of Representatives and the Committee on Com-
merce, Science, and Transportation of the Senate a report 
on the results of the study conducted under subsection (a). 
(e) RULEMAKING.—The Secretary of Transportation 
may consider the results of the study under subsection (a) 
in issuing any final rule related to the transportation of 
a gas blend that contains greater than 5 percent hydrogen 
by volume. 
(f) STATUTORY CONSTRUCTION.—Nothing in this 
section shall be construed to prohibit or otherwise limit 
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the authority of the Secretary of Transportation to issue 
a final rule relating to the transportation of a gas blend 
that contains greater than 5 percent hydrogen by volume 
prior to the submission of the report under subsection (d). 
(g) GAS PIPELINE FACILITY DEFINED.—In this sec-
tion, the term ‘‘gas pipeline facility’’ has the meaning 
given such term in section 60101 of title 49, United States 
Code. 
Æ 
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