TOP WHOLE MELT EXTRACTS SECRETS

597 U.S. at 710 (citations omitted). The EPA's authority to find out the BSER contains the authority to make subcategories that tailor the BSER for differently situated sets of sources. Once more, For brand spanking new resources, CAA area 111(b)(2) confers authority for the EPA to “distinguish amid courses, forms, and dimensions inside types.”