; and (B) shall publish a list of all such chemical substances for which an exemption under subsection (c) is granted. . 4. Analytical reference standards for PFAS Section 4 of the Toxic Substances Control Act ( 15 U.S.C. 2603 ) is further amended by adding at the end the following: (j) Analytical reference standards for PFAS (1) Submission (A) In general Not later than 1 year after the date of enactment of this subsection, the Administrator shall, by order or rule, require persons who manufacture or process a covered chemical substance to— (i) submit to the Administrator an analytical reference standard for, or sample of, such covered chemical substance; and (ii) periodically resubmit such an analytical reference standard or sample, as determined appropriate by the Administrator. (B) Mixtures The Administrator may, by order or rule, require persons who manufacture or process a mixture containing a covered chemical substance to submit to the Administrator an analytical reference standard for, or sample of, such mixture. (2) Uses The Administrator may use an analytical reference standard or sample submitted under this subsection or provide an analytical reference standard or sample submitted under this subsection to a State, research institution, or another Federal agency, for— (A) the development of information, protocols, and methodologies, which may be carried out by an entity determined appropriate by the Administrator; and (B) activities relating to the implementation or enforcement of Federal or State requirements. (3) Prioritization In carrying out this subsection, the Administrator shall— (A) prioritize covered chemical substances that are included in the list of toxic chemicals subject to the requirements of section 313(c) of the Emergency Planning and Community Right-To-Know Act of 1986 ( 42 U.S.C. 11023(c) )