eCFR Reference Browser

---

title: "40 CFR §61.22"

source: "https://www.ecfr.gov/current/title-40/section-61.22"

title_number: "40"

volume_number: "10"

chapter_number: "Unknown"

subchapter_code: "C"

subchapter_subject: "AIR PROGRAMS (CONTINUED)"

part_code: "61"

part_subject: "NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS"

subpart_code: "B"

subpart_subject: "National Emission Standards for Radon Emissions From Underground Uranium Mines"

section_number: "61.22"

section_subject: "Standard."

cfr_reference: "40 CFR 61.22"

title_name: "Title 40"

title_subject: "Protection of Environment"

parts_covered: "Parts 61 to 62"

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"

---

Emissions of radon-222 to the ambient air from an underground uranium mine shall not exceed those amounts that would cause any member of the public to receive in any year an effective dose equivalent of 10 mrem/y.

§61.22 - Standard.