1. Short title This Act may be cited as the Honest and Open New EPA Science Treatment Act of 2017 or the HONEST Act . 2. Data transparency Section 6(b) of the Environmental Research, Development, and Demonstration Authorization Act of 1978 ( 42 U.S.C. 4363 note) is amended to read as follows: (b) (1) The Administrator shall not propose, finalize, or disseminate a covered action unless all scientific and technical information relied on to support such covered action is— (A) the best available science; (B) specifically identified; and (C) publicly available online in a manner that is sufficient for independent analysis and substantial reproduction of research results, except that any personally identifiable information, trade secrets, or commercial or financial information obtained from a person and privileged or confidential, shall be redacted prior to public availability. (2) The redacted information described in paragraph (1)(C) shall be disclosed to a person only after such person signs a written confidentiality agreement with the Administrator, subject to guidance to be developed by the Administrator. (3) Nothing in the subsection shall be construed as— (A) requiring the Administrator to disseminate scientific and technical information; (B) superseding any nondiscretionary statutory requirement; or (C) requiring the Administrator to repeal, reissue, or modify a regulation in effect on the date of enactment of the Honest and Open New EPA Science Treatment Act of 2017 . (4) In this subsection— (A) the term covered action means a risk, exposure, or hazard assessment, criteria document, standard, limitation, regulation, regulatory impact analysis, or guidance; and (B) the term scientific and technical information includes— (i) materials, data, and associated protocols necessary to understand, assess, and extend conclusions; (ii) computer codes and models involved in the creation and analysis of such information; (iii) recorded factual materials