This document establishes the specific legal amendments required to adjust the calculation and collection of non-domestic rating contributions within the Welsh administrative framework. The text is issued by the government of Great Britain, acting as the legislative authority for the region. It provides the formal regulatory adjustments necessary to ensure compliance with existing tax statutes and local government finance laws.

Legal professionals and government officials utilize this text as a primary source for understanding the specific legislative changes enacted in 1990. The prose is highly technical and intended for administrative use rather than general readership.