ISO/IEC Guide 21-2:2005 PDF

Overview

ISO/IEC Guide 21-2:2005 provides practical methods for the regional or national adoption of International Deliverables other than International Standards (for example, Technical Specifications, Publicly Available Specifications, Technical Reports, Guides, Technology Trend Assessments, International Workshop Agreements and Industry Technical Agreements). The Guide covers how these deliverables may be adopted as regional or national documents and gives rules for the numbering and clear identification of such adoptions.

Key topics

• Scope of adoption: Guidance on adopting International Deliverables other than International Standards as regional or national deliverables of the same, similar or different type, with a requirement to indicate any change of type in the foreword or introduction.
• Degrees of correspondence: Uses the degree-of-correspondence definitions from ISO/IEC Guide 21-1 to classify how closely the adopting deliverable matches the international original.
• Methods of adoption: Preferred approaches and recommendations for selecting adoption methods; principle that deviations should be kept to a minimum.
• Technical deviations and editorial changes: Procedures for identifying and indicating permitted editorial changes and technical deviations (aligned with ISO/IEC Guide 21-1).
• Numbering and identification: Rules for numbering identical adoptions - recommended single numbering (preferred) or optional dual numbering - and the requirement that modified adoptions receive a distinct national/regional reference number. Including publication year in identifiers is recommended for transparency.
• Lifecycle considerations: Notes that some International Deliverables may be withdrawn or replaced and that adopting bodies should decide how to handle such cases.

Applications

ISO/IEC Guide 21-2:2005 is intended for:

• National and regional standards bodies implementing adoptive procedures and numbering schemes.
• Technical committees and secretariats preparing forewords, identifying deviations and managing document types.
• Regulators, procurement officers and trade policy specialists seeking to harmonize national deliverables with international outputs to reduce technical barriers to trade.
• Conformity assessment and industry stakeholders who rely on clear identification of the degree of correspondence between national deliverables and international documents.

Practical benefits include improved transparency in adopted documents, consistent numbering practices, clearer communication of technical deviations, and facilitation of trade and interoperability through aligned deliverables.

Related standards

• ISO/IEC Guide 21-1:2005 - Adoption of International Standards (degrees of correspondence and related methods)
• ISO/IEC Guide 2:2004 - Standardization and related activities - General vocabulary
• References to obligations under the WTO TBT Agreement are noted in context.