A detailed report on potential competition concerns regarding the Packaging and Packaging Waste Directive has been published by the EC. It aims to steer regulators and companies away from anti-competitive practices. Noting that packaging waste markets have developed gradually since the mid-1990s, the report notes concerns that some Member States might insist collection systems for household packaging waste cover the entire country, saying: "This might render difficult the market entry of new waste management systems", although it would at least prevent operators "cherry-picking" the most profitable regions, notably cities. Another issue highlighted is that a collective system for household packaging waste could become overpowerful in a marketplace, maybe leveraging prices. See: www.europa.eu.int/comm/competition/antitrust/others/waste.pdf