Where any law or executive action relating to any of the

82. Where any law or executive action relating to any of the matters enumerated in the Concurrent List involves expenditure, such action shall be taken under this Constitution as will ensure that, unless otherwise agreed, the burden of that expenditure is borne— (a) by the Federation, if the expenditure results either from federal commitments or from State commitments undertaken in accordance with federal policy and with the specific approval of the Federal Government; (b) by the State or States concerned, if the expenditure results from State commitments undertaken by the State or States on its or their own authority. Acquisition of land for federal purposes