2. Policy and legislative context The European Union legislation imposes the increase of energy generation from renewable sources and the decrease of biodegradable fraction in the landfilled waste (65% in 2016- Landfill Directive 1999/31/EC). Another target regards the decrease of greenhouse gas (GHG) emissions. All these requirements were transposed into Directives that became laws/regulations (Waste Framework Directive, Landfill Directive, Incineration Directives, IPPC Directive, Large Combustion Plant Directive, Renewable Energy Directive) and Romania, as a EU member country must comply with. The EU Directives present different types of pre-treatment for MSW. One of the options is the bio-drying process, as a solution to increase the production of RDF that can be used in thermal power plants, cement kilns and other industrial plants. At present more than 95% of the MSW generated in Romania is disposed of in landfills [4]. Of course the Romanian target, today, is to increase the energy and material recovery and to decrease the amount of biodegradable fraction in the landfilled waste. In Romania there is no specific legislation regarding the Biological Mechanical Treatment (BMT), but the National Strategy of Waste Management and National Plan of Waste Management considers this pre-treatment as complementary option for incineration as important techniques in integrated municipal waste management [3].