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Title 40

Displaying title 40, up to date as of 9/24/2021. Title 40 was last amended 9/24/2021.

Title 40

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§ 61.22 Standard.

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.