The second phase is the macro-siting that is aimed at selecting “non-suitable areas” as well as “potentially suitable areas” on the basis of “excluding criteria”, separately for all the types of solid waste facility considered (e.g., the six mentioned in the previous phase as an example of the application of the proposed procedure to our case study). In other words, a suitability map is derived for each type of waste facility considered. In this phase we have also adopted the penalizing criteria (for each type of facility) although they are considered only in the fourth step of the procedure.