(47)The implementation of Directive 91/271/EEC is financed through water tariffs and public budgets, including Union funding. In the future, the extended producer responsibility should be such as to ensure that the costs of the quaternary treatment are at least partially borne by the industries concerned and complemented by other types of financing. In the past, the implementation of Directive 91/271/EEC was also substantially supported by the Union’s Cohesion Policy and programmes under Horizon 2020 and LIFE. In order to ensure the timely and proper implementation of this Directive, it is essential that Member States establish a national implementation programme including long-term programming of the required investments accompanied by a financing strategy. Those national implementation programmes should be reported to the Commission. To limit the administrative burden, that requirement should not apply to Member States in which more than 95 % of the agglomerations are compliant with the main obligations to treat and collect wastewater. To continue the implementation of this Directive, the Commission should consider the national implementation programmes reported by Member States for the preparation of the next multiannual financial framework and those following thereafter and the Member States should put in place the required extended producer responsibility system without delay.