The Secretary of the Interior is authorized to accept any suitable land or lands, buildings, or improvements that may be donated for the headquarters of mine rescue cars and construction of necessary railway sidings and housing for the same, or as the site of an experimental mine and plant for studying explosives, and to enter into leases for periods not exceeding ten years, subject to annual appropriations by Congress.
The table below lists the classification updates, since Jan. 7, 2011, for this section. Updates to a broader range of sections may be found at the update page for containing chapter, title, etc.
The most recent Classification Table update that we have noticed was Friday, May 13, 2011
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