ISO 45001 defines “conformity” as a “fulfilment of a requirement”.
This is the state and status of a management system which all ISO 45001 implementing organizations will yearn for.
Conformity means that your organization fulfill a requirement. If your organization fulfill all requirements of ISO 45001 then you can go for a third party audit for certification.
Conformance is also a word expressed for same status that is requirement fulfillment. ISO 45001 conforming organization is the one who meets all requirements of the standard.
All documented information is maintained to show conformity against ISO 45001 requirements.
The opposite of conformity is non-conformity which is a fearful word in an audit, since it is an expression of non-fulfilment of a requirement.