HKNR:
- Die Geltungsdauer eines Herkunftsnachweises (period of validity of a guarantee of origin - in German)
- Einsatz des Umweltgutachters im Herkunftsnachweisregister (use of the environmental verifier in the HKNR - in German)
Maintenance work on the HKNR/RNR on 09.04.2026 between 08:00 a.m. and 12:00 p.m.. During this time, the HKNR/RNR registers will be unavailable or only partially available. - As part of this maintenance, we will also change the login page. It will have a more modern look and a dark blue color scheme.