This document establishes the legal framework for the trunking and detrunking of the A339 Basingstoke to Newbury Trunk Road. The order was issued by the Secretary of State for Transport under the authority of the Highways Act 1980, providing the statutory basis for reclassifying specific sections of the road network in Hampshire and Berkshire. It serves as a formal administrative instrument to define the responsibilities of the highway authority regarding maintenance and management.

Legal professionals and civil engineers utilize this document as a primary source for verifying the administrative status of the A339 corridor. It is recognized as a standard regulatory instrument within the context of United Kingdom highway law.