UNE-EN 16214-1:2013 Sustainability criteria for the production of biofuels and bioliquids for energy applications - Principles, criteria, indicators and verifiers - Part 1: Terminology
2020UNE-EN 16214-1:2012+A1:2019 Sustainability criteria for the production of biofuels and bioliquids for energy applications - Principles, criteria, indicators and verifiers - Part 1: Terminology (Endorsed by Asociación Española de Normalización in February of 2020.)
2013UNE-EN 16214-1:2013 Sustainability criteria for the production of biofuels and bioliquids for energy applications - Principles, criteria, indicators and verifiers - Part 1: Terminology