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Addition of a Subsurface Intrusion Component to the Hazard Ranking System (Final)
Jan. 31, 2018
This is a revision of the headings in Apprendix A, Title 40 of the Code of Federal Regulations, Parts 300 to 399, revised as of July 1, 2017 (Federal Register; 31 January 2018 [Rules and Regulations], pages 4430 - 4431).

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Last Updated: January 22, 2018