; report Not later than 1 year after the development of a metric under subsection (a), the Administrator shall conduct a study of, and submit to Congress a report on, the proportion of recyclable materials in commercial and municipal waste streams that, during each of the 10 calendar years preceding the year of submission of the report, were diverted from a circular market. (c) Data The report under subsection (b) shall provide data on specific recyclable materials, including aluminum, plastics, paper and paperboard, textiles, and glass, that were prevented from remaining in a circular market through disposal or elimination, and to what use those specific recyclable materials were lost. (d) Evaluation The report under subsection (b) shall include an evaluation of whether the establishment or improvement of recycling programs would— (1) improve recycling rates; or (2) reduce the quantity of recyclable materials being unutilized in a circular market. 8. Voluntary guidelines The Administrator shall— (1) in consultation with States, units of local government, and Indian Tribes, develop, based on the results of the studies, reports, inventory, and data determined under sections 4 through 7, and provide to States, units of local government, and Indian Tribes, through the Model Recycling Program Toolkit or a similar resource, best practices that the States, units of local government, and Indian Tribes may use to enhance recycling and composting, including— (A) labeling techniques for containers of waste, compostable materials, and recycling, with the goal of creating consistent, readily available, and understandable labeling across jurisdictions; (B) pamphlets or other literature readily available to constituents; (C) primary and secondary school educational resources on recycling; (D) web and media-based campaigns; and (E) guidance for the labeling of recyclable materials and compostable materials that minimizes contamination and diversion of those materials from waste streams toward recycling and composting systems