The European Biochar Certificate.

http://www.european-biochar.org/en
The European Biochar Certificate (EBC) has been developed by biochar scientists to become the voluntary European industrial standard. The EBC ensures a sustainable biochar production and low hazard use in agronomic systems. It is based on the latest scientific data, it's economically viable and close to technical and agricultural practice. Users of biochar and biochar-based products will benefit from a transparent and verifiable monitoring and independent quality control.
Biochar produced in accordance with the standards of the EBC fulfils all the requirements of sustainable production and a positive carbon footprint. These standards guarantee ecologically sustainable procurement and production of biomass feedstock for biochar production, compliance with emission standards and environmentally safe storage. Biochar quality is comprehensively monitored and documented. All threshold values, corresponding to those of the Ordinance on Soil Protection are complied with.