; (3) contaminants of concern that may leech from product packaging into a cosmetic; and (4) any other contaminant of concern identified by the Secretary that are present in cosmetics. (b) Evaluation; labeling The Secretary shall use the process described in sections 615 and 616 to evaluate contaminants of concern for possible elimination or restriction in cosmetics. The Secretary shall require that a contaminant on the list under subsection (a) be declared on the label of a cosmetic, in the same manner as an ingredient under section 613. (c) Requirements for testing (1) In general Not later than 1 year after the date of enactment of this subchapter, the Secretary shall establish, by rule, requirements for testing ingredients and cosmetics for contaminants listed under subsection (a). (2) Contents The requirements under paragraph (1) shall include— (A) testing methods and applicable protocols; and (B) maximum allowable detection limits for each contaminant in an ingredient or cosmetic. (3) Update The Secretary shall annually update the requirements under paragraph (1). (d) Supplier requirements Beginning not later than 1 year after the promulgation of the rule under subsection (c)(1) with respect to an ingredient that is used in a cosmetic, a supplier of the ingredient shall, with respect to such ingredient— (1) comply with the requirements under subsection (c)(1) for any ingredient listed under subsection (a); (2) conduct similar testing on any ingredient that— (A) the supplier expects may be used in a cosmetic; (B) the supplier suspects may contain a contaminant of concern; and (C) is not listed under subsection (a); and (3) upon the sale of an ingredient to the manufacturer of a cosmetic, provide to the manufacturer specifications for the ingredient that— (A) include the levels of contaminants present in such ingredient