Ministerial Decree 1411 of 2019 and the UNI/TS 11567 standard define the guidelines to qualify economic operators in the biomethane/RNG production chain, asking them to ensure not only the sustainability criteria for biomethane, but also to guarantee the traceability of the raw materials and the compliance of the authorisations obtained. The qualification is obtained by submitting these guarantees to an authorised certification body. How does the process work in detail? Let’s find out in this interview