The GM 636 stage V is certified for international quality by the German institute TUV – TÜV SÜD INDUSTRIE SERVICE GMBH from Munich.

The GM 636 model is now the bearer of the product’s “CE” mark (Conformité Européenne, European Conformity), which means that the product meets all the basic safety and health requirements in terms of EU directives and harmonized standards.

All models of Green Machines from the previous lines have TUV quality certificates with which they are sold on the world market.