The Network Industries & Media Unit is charged with applying and enforcing the Dutch Competition Act in the energy, telecommunication, and media industries. These include the postal, IT, water, cultural, education, and sports industries. Network industries are characterized by sector-specific regulation, which necessitates having contact with other regulators. In addition, liberalized industries often have players that enjoy dominant positions. This unit makes sure that such positions are not abused. It frequently deals with highly complex concentration cases, such as the merger of business directories Yellow Pages Netherlands (Gouden Gids) and de Telefoongids, the joint venture between telecom company KPN and Reggefiber, and the concentration of postal services providers Sandd and Selekt Mail.