4.—(1) The Minister shall not make a grant under sub-pararaph (1) of paragraph 3—
(a)in respect of any agricultural business which is not at least partly carried out on land situated in a nitrate vulnerable zone; or
(b)towards any expenditure incurred in respect of an agricultural business which entails an increase in its production capacity.
(2) The Minister shall not make a grant under sub-paragraph (1) of paragraph 3 unless he is satisfied that the expenditure towards which the grant is to be made will result in at least some environmental benefit accruing to the nitrate vulnerable zone concerned.