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Radiation Protection

Subpart W Rulemaking History

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. View the Federal Register notice extending the comment period to October 29, 2014 (PDF)(2 pp, 212.73 K, About PDF). On January 17, 2017 EPA officially issued a final rule that revised Subpart W.

View the official rule in the Federal Register (82 FR 5142, January 17, 2017) Note: The effective date of this action was deferred to March 21, 2017.

Previous Rulemaking Notices from the Federal Register in reverse chronological order:

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