To authorise the issue out of the Consolidated Fund of Northern Ireland of certain sums for the service of the years ending 31 March 2019 and 2020; to appropriate those sums for specified purposes; to authorise the use for the public service of certain resources for those years; to revise the limits on the use of certain accruing resources in the year ending 31 March 2019; and to authorise the Department of Finance in Northern Ireland to borrow on the credit of the sum appropriated for the year ending 31 March 2020.