Recital 51

(51)To adapt this Directive to scientific and technical progress, the power to adopt acts in accordance with Article 290 TFEU should be delegated to the Commission in respect of amending certain parts of the Annexes with regard to the adaptation of monitoring to state-of-the-art methods for monitoring, including with a view to making optimal use of digital tools and taking into account the relevant methods used in other relevant Union law, and evaluation of results for the requirements for the tertiary and quaternary treatment, and the requirements for prior regulations and specific authorisations for discharges of non-domestic wastewater into collecting systems and urban wastewater treatment plants and in respect of supplementing this Directive by specifying a minimum combined reuse and recycling rate for phosphorus from sludge and from urban wastewater, taking into account available technologies and resources as well as the economic viability for phosphorus recovery and by updating the information provided to the public online and to households. It is of particular importance that the Commission carry out appropriate consultations during its preparatory work, including at expert level, and that those consultations be conducted in accordance with the principles laid down in the Interinstitutional Agreement of 13 April 2016 on Better Law-Making ³⁰ . In particular, to ensure equal participation in the preparation of delegated acts, the European Parliament and the Council receive all documents at the same time as Member States’ experts, and their experts systematically have access to meetings of Commission expert groups dealing with the preparation of delegated acts.