http://publications.europa.eu/resource/authority/cpv/cpv or http://publications.europa.eu/resource/authority/cpv/cpvsuppl

Example value
http://publications.europa.eu/resource/authority/cpv/cpv
Rules
Identifier/Error message Flag
PEPPOL-T011-R037
The Type for Classification MUST be "http://publications.europa.eu/resource/authority/cpv/cpv" or "http://publications.europa.eu/resource/authority/cpv/cpvsuppl".
fatal