The U.S. Federal Communications Commission (FCC) adopted a set of net neutrality rules Tuesday that impose different requirements for fixed-line and wireless providers. The rules will prevent fixed providers from blocking access to sites and applications, but will give wireless providers more flexibility to impose limits on access to services and applications. The rules, proposed by FCC chairman Julius Genachowski, will allow a wireless Internet provider to block applications or services, unless they directly compete with the provider’s voice and video products. That means a wireless provider like Verizon cannot block an application like Skype but could block Google Maps. Providers will not be allowed to block websites. Three out of five FCC commissioners approved the rules in a vote Tuesday. The rules also require broadband providers to disclose their network management practices and performance metrics to consumers. The New York Times reported Tuesday that the rules may be challenged before the courts in the months to come.