(54)Pursuant to the Interinstitutional Agreement on Better Law-Making, the Commission should carry out an evaluation of this Directive within a certain period of time from the date set for its transposition. That evaluation should be based on experience gained and data collected during the implementation of this Directive, on any available WHO recommendations, and on relevant scientific, analytical, and epidemiological data. In the evaluation, particular attention should be given to an analysis of the adequacy of the public health parameters used in urban wastewater surveillance, an analysis of the added value of a mandatory monitoring of public health parameters, an analysis of the possible necessity to adapt the list of products to be covered by extended producer responsibility systems including the conditions for exemptions, an analysis of the possible impacts on the functioning of the internal market of the potentially different contribution rates for producers set by Member States, an analysis of the feasibility and appropriateness of the development of an extended producer responsibility system for products generating PFAS and microplastics, an analysis of the added value and the appropriateness of requiring mandatory national water reuse plans including national targets and measures, an evaluation of the objective of energy neutrality in order to analyse the technical and economic feasibility and environmental and climate benefits to achieve a higher level of energy autonomy in the sector, an evaluation of the possibilities for measuring direct and indirect GHG emissions emitted from the urban wastewater sector, an evaluation of the possibility of reaching climate neutrality for the urban wastewater treatment sector, and the time required to do so, as well as the feasibility and appropriateness of setting Union minimum reuse and recycling rates for nitrogen from sludge or from urban wastewater, or both.