Same as above, the difference is in the source of financing, volume of funding and target municipalities: although there are no implicit eligibility criteria related to the income of the households, it is perceived that the programme is primarily targeting vulnerable households, as for Sofia and other municipalities specific conditions are introduced. The projects do not, however, bear any relation to the social support programmes (the heating subsidies) or to the renovation programmes and no research on the impact on poverty alleviation is planned, which is a definite deficiency. In the best-case scenarios, these sources of funding (air quality programmes, fuel subsidies and renovation programmes) have to be coordinated under the supervision of the local authorities.