This document outlines the approval process for breath test devices under the Transport and Works Act of 1992. It details the specific requirements and standards that such devices must meet to be legally recognized for use in Great Britain.

This is a governmental document detailing regulatory approvals. Its reception would be primarily within legal, law enforcement, and transportation safety sectors, serving as an official record of standards and procedures at a specific point in time. The document's authority stems from its origin within the Home Office and its grounding in the Transport and Works Act 1992.