I 
117TH CONGRESS 
1ST SESSION H. R. 3631 
To require the Administrator of the Environmental Protection Agency to 
revise certain ethylene oxide emissions standards under the Clean Air 
Act, and for other purposes. 
IN THE HOUSE OF REPRESENTATIVES 
MAY 28, 2021 
Mr. SCHNEIDER (for himself and Mr. HICE of Georgia) introduced the 
following bill; which was referred to the Committee on Energy and Commerce 
A BILL 
To require the Administrator of the Environmental Protec-
tion Agency to revise certain ethylene oxide emissions 
standards under the Clean Air Act, and for other pur-
poses. 
Be it enacted by the Senate and House of Representa-
tives of the United States of America in Congress assembled, 
SECTION 1. ETHYLENE OXIDE EMISSIONS STANDARDS. 
(a) IN GENERAL.—Not later than 180 days after the 
date of enactment of this Act, the Administrator of the 
Environmental Protection Agency (referred to in this sec-
tion as the ‘‘Administrator’’) shall amend subpart O of 
part 63 of title 40, Code of Federal Regulations— 
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(1) to revise the standards for the emission of 
ethylene oxide under that subpart based on the re-
sults described in the report of the National Center 
for Environmental Assessment of the Environmental 
Protection Agency entitled ‘‘Evaluation of the Inha-
lation Carcinogenicity of Ethylene Oxide’’ and dated 
December 2016; 
(2) to apply maximum achievable control tech-
nology (within the meaning of the Clean Air Act (42 
U.S.C. 7401 et seq.)) requirements to chamber ex-
haust vents; and 
(3) to apply to area sources and major sources 
(as those terms are defined in section 112(a) of the 
Clean Air Act (42 U.S.C. 7412(a))) of ethylene 
oxide. 
(b) RESIDUAL RISK REVIEW.—Not later than 180 
days after the date on which the Administrator finalizes 
the revised standards required under subsection (a), the 
Administrator shall carry out a residual risk assessment 
pursuant to section 112(f)(2) of the Clean Air Act (42 
U.S.C. 7412(f)(2)) with respect to the revised standards. 
(c) NOTIFICATION.— 
(1) IN GENERAL.—Not later than 30 days after 
the Administrator learns of a violation of the stand-
ards revised under subsection (a), the Administrator 
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shall notify the public of the violation in a manner 
determined to be appropriate by the Administrator. 
(2) FAILURE TO NOTIFY.—If the Administrator 
fails to notify the public under paragraph (1) by the 
end of the period described in that paragraph, the 
Inspector General of the Environmental Protection 
Agency shall carry out an investigation to deter-
mine— 
(A) the reason or reasons for which the 
Administrator failed to notify the public; 
(B) the public health risks associated with 
the failure of the Administrator to notify the 
public; and 
(C) any steps the Administrator should 
take to ensure the Administrator meets the re-
quirements described in paragraph (1) in the 
future. 
Æ 
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