ISO is the International Organization for Standardization.

ISO's work programme ranges from standards for traditional activities, such as agriculture and construction, through mechanical engineering, manufacturing and distribution, to transport, medical devices, information and communication technologies, and to standards for good management practice and for services.


Membership of ISO is open to national standards institutes most representative of standardization in their country (one member in each country).

ISO is made up of 157 members that are divided into three categories: Member bodies, Correspondent members, Subscriber members.

A member body of ISO is the national body "most representative of standardization in its country". Only one such body for each country is accepted for membership of ISO. Member bodies are entitled to participate and exercise full voting rights on any technical committee and policy committee of ISO.

A correspondent member is usually an organization in a country which does not yet have a fullydeveloped national standards activity. Correspondent members do not take an active part in the technical and policy development work, but are entitled to be kept fully informed about the work of interest to them.

Subscriber membership has been established for countries with very small economies. Subscriber members pay reduced membership fees that nevertheless allow them to maintain contact with international standardization.


The following ISO deliverables are available:

Deliverable Description
ISO Standard A normative document, developed according to consensus procedures, which has been approved by the ISO membership and P-members of the responsible committee in accordance with Part 1 of the ISO/IEC Directives as a draft International Standard and/or as a final draft International Standard and which has been published by the ISO Central Secretariat.
ISO/PAS Publicly Available Specification A normative document representing the consensus within a working group.
ISO/TS Technical Specification A normative document representing the technical consensus within an ISO committee.
ISO/TR Technical Report An informative document containing information of a different kind from that normally published in a normative document.
IWA International Workshop Agreement An IWA is an ISO document produced through workshop meeting(s) and not through the technical committee process.
ISO Guide Guides provide guidance to technical committees for the preparation of standards, often on broad fields or topics.