Exclusively for conservation purposes
For purposes of this subsection—
(A) Conservation purpose must be protected A contribution shall not be treated as exclusively for conservation purposes unless the conservation purpose is protected in perpetuity.
(B) No surface mining permitted (i) In general Except as provided in clause (ii), in the case of a contribution of any interest where there is a retention of a qualified mineral interest, subparagraph (A) shall not be treated as met if at any time there may be extraction or removal of minerals by any surface mining method. (ii) Special rule With respect to any contribution of property in which the ownership of the surface estate and mineral interests has been and remains separated, subparagraph (A) shall be treated as met if the probability of surface mining occurring on such property is so remote as to be negligible.