shall be made by the Department with the approval of the Department of Finance and Personnel;

may authorise the reduction or withholding of grant where assistance in respect of expenditure for which the grant is made is or may be given otherwise than under the scheme, but so that where expenditure, or part of expenditure, is eligible for grant at different rates, grant at the higher rate shall be allowed;

may authorise the reduction or withholding of grant in respect of land for the benefit of which any other prescribed grant or contribution has been made out of money appropriated by Measure or has been so made within a prescribed period;

may contain such incidental and supplemental provisions as appear to the Department to be expedient, including transitional provisions treating as having been done under or in pursuance of the scheme anything done under or in pursuance of a previous scheme; and

shall not be made unless a draft of the scheme has been laid before and approved by a resolution of the Assembly.