The ICAO Balanced Approach is transposed into the European Law through the EU Directive 2002/30/EC, later replaced by Regulation (EU) No 598/2014. In the EU, legislation is set centrally, however, its implementation into the local law occurs at the Member State level. This ensures that the exact implementation of the four Balanced Approach elements depends on the contracting states, which can also choose to delegate their powers to a competent authority. Below this level, airports are generally empowered to implement their specific interventions designed to reduce noise impact, although this is commonly supported by external stakeholders, particularly national airspace providers. Doing so is intended to ensure that aircraft noise problems at specific airports can be managed in an environmentally and economically responsible way – cost-effectively achieving maximum environmental benefit.