eCFR Reference Browser

---

title: "40 CFR §57.109"

source: "https://www.ecfr.gov/current/title-40/section-57.109"

title_number: "40"

volume_number: "6"

chapter_number: "Unknown"

subchapter_code: "C"

subchapter_subject: "AIR PROGRAMS (CONTINUED)"

part_code: "57"

part_subject: "PRIMARY NONFERROUS SMELTER ORDERS"

subpart_code: "A"

subpart_subject: "General"

section_number: "57.109"

section_subject: "Maintenance of pay."

cfr_reference: "40 CFR 57.109"

title_name: "Title 40"

title_subject: "Protection of Environment"

parts_covered: "Parts 53 to 59"

revised_date: "Revised as of July 1, 2019"

publication_date: "As of July 1, 2019"

contains_description: "Containing a codification of documents of general applicability and future effect"

publication_info: "Published by the Office of the Federal Register National Archives and Records Administration as a Special Edition of the Federal Register"

---

The Administrator will not approve or issue an NSO for any smelter unless he has approved or promulgated SIP provisions which are applicable to the smelter and which satisfy the requirements of section 110(a)(6) of the Clean Air Act.

§57.109 - Maintenance of pay.