Quality Infrastructure fulfils sovereign tasks 

The Quality Infrastructure is organised at the national level. Therefore, we speak of a National Quality System (NQS) or National Quality Infrastructure (NQI). Most countries in the world today have a National Metrology Institute (NMI), a National Standards Institute (NSI) and a National Accreditation Body (NAB). Each of these institutions requires a legal framework because they act in the public interest. In some cases, the Quality Infrastructure institutions even assume sovereign tasks.