Current certification documents
This page contains the documents for certification of biomass for energy applications and biobased products. These scheme documents can be applied until 1 June 2025, but it is already possible to be assessed against the New certification documents. From 1 June, the new certification documents will be mandatory for all assessments.
BETTER BIOMASS SUSTAINABILITY REQUIREMENTS
Sustainably produced biomass
The standard NTA 8080-1 (second edition, 2015) describes the requirements for sustainably produced biomass for application in bioenergy (electricity, heating, cooling, and transport fuel) and bio-based products. Biomass and products made from biomass can occur in a solid, liquid or gaseous state.Download NTA 8080-1:2015 [via NEN Shop].
BETTER BIOMASS CHAIN-OF-CUSTODY REQUIREMENTS
Traceability and origin of biomass
The standard NTA 8080-2 (second edition, 2015) describes the requirements on the chain of custody from biomass production to final application as bioenergy or bio-based products in order to assure the traceability of the origin of the biomass. Biomass or products made from biomass can occur in a solid, liquid or gaseous state.Download NTA 8080-2:2015 [via NEN Shop].
BETTER BIOMASS CERTIFICATION SCHEME
Certification rules
The Better Biomass certification scheme (NCS 8080:2018-08) describes the ‘rules’ for certification against the requirements of NTA 8080-1 and NTA 8080-2. The Better Biomass certification scheme has been accepted by the Dutch Accreditation Council (RvA).Download Better Biomass certification scheme (NCS 8080:2018-08).
INTERPRETATION DOCUMENTS
Clarification
The certification system aims at minimizing ambiguous interpretation of the requirements. In case of interpretation issues, the Committee of Experts will define the intended interpretation of the requirement concerned and publish this interpretation in the interpretation document. The interpretation document is a living document.Download Interpretation document N° 8 or Download Interpretation document N° 8 ‘red line version’ (with changes tracked compared to Interpretation document N° 7).
Download addendum to Interpretation document N° 8 on Greenhouse gas emissions of co-digestion
Download addendum to Interpretation document N° 8 on Reducing woody residues.
Download addendum to Interpretation document N° 8 on Bone meal.
Download addendum to Interpretation document N° 8 on Acceptance of other schemes
NEN SCHEME MANAGEMENT MANUAL
General procedures
This scheme management manual describes the procedure for the development and management of schemes by NEN. The procedures of NEN for developing and managing schemes are aligned with the requirements applied by accreditation bodies associated with the International Accreditation Forum (IAF) and European cooperation for Accreditation (EA).