PART IXN.I.MINES AND QUARRIES
1. This Part applies to any hereditament which consists of or includes a mine (which for the purposes of this Part includes a well or bore-hole) or a quarry.N.I.
2. The net annual value of a hereditament to which this Part applies shall be its value as ascertained under Part I, paragraph 1, reduced by one half of the part of the rent estimated under that paragraph which is attributable to the occupation of land for the purpose of the following operations, namely, the winning and working, grading, washing, grinding and crushing of minerals.N.I.
3. The Department may by order—N.I.
(a)provide that paragraph 2 is to cease to have effect;
(b)make provision for determining, by such method as may be specified in the order, the net annual value of any hereditament to which this Part applies.