Certification standards built on clarity and transparency
The GGL certification scheme consists of a comprehensive set of publicly available documents that define the requirements for sustainable biomass certification.
Together, this GGL Documentation provides a clear and practical framework for demonstrating sustainability, traceability and compliance throughout the biomass supply chain, from origination through to conversion into energy.
One certification scheme. Structured documentation.
The GGL documentation is organised into four categories, making it easy to find the information relevant to your role.
GGL Setup and Governance Documents
The governance documents explain how the GGL certification scheme is managed and how certification is carried out. They define roles, responsibilities and the principles that safeguard the integrity and impartiality of the scheme.
GGL Standards
These documents define the certification requirements that organisations must meet to demonstrate sustainable biomass sourcing, traceability and chain of custody. They form the core of the GGL certification scheme.
Modular Instructions
The GGL certification scheme is designed to be adaptable to different regulatory frameworks and market requirements. Modular Instructions provide additional requirements and guidance for specific certification scopes or market applications, building on the core GGL certification standards. By combining the relevant modules with the core standards, organisations can demonstrate compliance with the requirements of the markets they serve without adding unnecessary complexity to the certification process.
Guidance & Supporting Documents
Guidance documents provide practical guidance for implementing the certification scheme. They help organisations apply the requirements consistently and support Certification Bodies during audits.
Document Overview
Browse the complete collection of GGL documentation below. Use the search and filter options to quickly find the documents relevant to your role or certification scope.
Open documentation supports transparent certification.
We believe that clear, accessible documentation is essential for consistent implementation, independent verification and confidence in sustainable biomass certification.
All normative document changes of GGL are subjected to rigorous, transparent and public stakeholder consultation. The results of these consultations are published and available to all.
By making our standards, governance documents, and guidance publicly available, GGL promotes transparency and enables Certification Bodies, certificate holders, and other stakeholders to work from the same set of requirements.
This helps strengthen confidence in certified sustainable biomass throughout the supply chain.
Need help finding the right document?
If you're unsure which documents apply to your organisation or certification scope, we're here to help.