ISO is the international organisation for standardisation. ISO standards are recognised internationally, and ISO member bodies exist in most countries worldwide.

Probably the best-known ISO standard is ISO 9001, the global standard for quality management systems. ISO 9001 is an international standard, which means that organisations in every corner of the globe must meet the same requirements in order to achieve ISO 9001 certification.

ISO itself claims that over a million companies in more than 170 countries are certified to ISO 9001. This means that the ISO 9001 standard is used in almost every single country on Earth.

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