NESHAP Subpart W is a radon emission standard for operating uranium mill tailings. In accordance with the Clean Air Act Amendments of 1990, EPA formed a workgroup to review the standard. On May 2, 2014, EPA issued a Notice of Proposed Rulemaking with proposed revisions to Subpart W. On July 21, 2014, EPA issued a Federal Register Notice extending the comment period to October 29, 2014. EPA is now evaluating the comments and information received as we prepare the final rule for the Subpart W standards.
Previous Rulemaking Notices from the Federal Register in reverse chronological order:
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October 17 2000 Errata (PDF)(1 pg, 135 K,
October 2000)
This document clarifies some test method and procedures language.
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Subpart T Rescission (PDF)(24 pp, 4 MB,
July 1994)
This document describes how EPA's uranium tailings disposal standards apply to the Department of Energy.
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40 CFR Part 61 General Requirements Errata (PDF)(2 pp, 325 K,
March 1994)
This rule replaces some language from the original general operating and permitting requirements.
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40 CFR Part 192 Errata (PDF)(1 pg, 139 K,
November 1993)
This rule replaces some language in the Standards for uranium and thorium mill tailings.
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December 15 1989 Final Rule (PDF)(63 pp, 8 MB,
December 1989)
This is the final rule for regulating hazardous air pollutants using NESHAP.
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March 7 1989 Proposed Rule (PDF)(58 pp, 9 MB,
March 1989)
This is a proposed rule for the NESHAP requirements.
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September 24 1986 Final Rule (PDF)(13 pp, 3 MB,
September 1986)
This is a 1986 rule that establishes work practices at uranium tailings facilities.
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National Emissions Standards for Hazardous Air Pollutants; Standard for Radon-222 Emissions From Licensed Uranium Mill Tailings; Proposed Rule and Announcement of Public Hearing (PDF)(11 pp, 1 MB,
February 1986)
This is the proposed rule and announcement of public hearing for National Emissions Standards for Hazardous Air Pollutants; Standard for Radon-222 Emissions From Licensed Uranium Mill Tailings.
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40 CFR Part 61 General Requirements (PDF)(4 pp, 613 K,
November 1985)
These are the general operating and permitting requirements for NESHAP facilities.
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Advance Notice of Proposed Rulemaking for Radionuclides (PDF)(13 pp, 2 MB,
October 1984)
This document is EPA's advance notice of a proposed rulemaking concerning radionuclides in 1984.
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40 CFR Part 192 (PDF)(2 pp, 299 K,
October 1983)
Standards for uranium and thorium mill tailings.
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Proposed Standards for Radionuclides (PDF)(17 pp, 2 MB,
April 1983)
This is a 1983 proposal for regulating hazardous air pollutants.