This document establishes specific legislative amendments to the existing tonnage measurement regulations for merchant shipping vessels. The text is a formal statutory instrument issued by the government of Great Britain, providing the legal framework required to update maritime standards. It serves as a technical directive for ship owners, maritime authorities, and legal practitioners to ensure compliance with revised tonnage calculation methodologies.

This text is a specialized legal document intended for maritime professionals and legal researchers. Experts categorize this as a primary source document for historical regulatory compliance within the British shipping industry.