NOT KNOWN FACTS ABOUT WHOLE MELT EXTRACTS

597 U.S. at 710 (citations omitted). The EPA's authority to ascertain the BSER involves the authority to make subcategories that tailor the BSER for otherwise located sets of sources. Once more, For brand new resources, CAA segment 111(b)(2) confers authority with the EPA to “distinguish amid courses, varieties, and dimensions in categories.” A