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 section as the Administrator ) shall amend— (1) subparts O and FFFF of part 63 of title 40, Code of Federal Regulations, to revise the standards for the emission of ethylene oxide under those subparts based on the results described in the report of the National Center for Environmental Assessment of the Environmental Protection Agency entitled Evaluation of the Inhalation Carcinogenicity of Ethylene Oxide and dated December 2016; and (2) subpart O of part 63 of title 40, Code of Federal Regulations, to apply maximum achievable control technology (within the meaning of the Clean Air Act ( 42 U.S.C. 7401 et seq.)) requirements to chamber exhaust vents. (b) Notification (1) In general Not later than 30 days after the Administrator learns of a violation of the standards revised under subsection (a), the Administrator 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 determine— (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 requirements described in paragraph (1) in the future.