This document serves as the formal legislative instrument authorizing the appropriation of funds for the services of the Northern Ireland departments for the year ending 31 March 1991. The text outlines the specific financial allocations required to maintain government operations within the region during the specified fiscal period. It functions as a legal mandate, providing the necessary budgetary framework for public administration and service delivery under the authority of the Northern Ireland Office.

Legal professionals and historians utilize this document as a primary source for tracking the fiscal history and administrative structure of Northern Ireland. It is recognized as a technical, highly specialized record intended for archival and regulatory reference purposes.