High Level Structure

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International Standards Organization (ISO)
The High Level Structure (HLS) is a standardized way of drafting future ISO management system standards.
It is defined in Appendix SL of the ISO/IEC Directives, Part 1.
All new standards should respect and share a common consistent core:

  • A common general structure (table of contents): identical chapters, article numbers, and chapter, article or clause titles, etc.
  • Introductory texts for identical articles.
  • Identical wording for identical requirements.
  • Common terms and core definitions.

The characteristics and requirements specific to each standard are inserted into this structure in the appropriate chapters.
This standardization aims to foster compatibility among various management system standards to facilitate their integration and implementation by certified organizations.

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