A federal appeals court has voted to uphold a series of strict new rules for Internet providers, handing a major victory to regulators in the fight over net neutrality and ensuring that one of the most sweeping changes to hit the industry in recent years will likely remain on the books. The 2-1 court ruling Tuesday forces Internet providers such as Verizon and Comcast to obey federal regulations that ban the blocking or slowing of Internet traffic to consumers. The regulations from the Federal Communications Commission also forbid carriers from selectively speeding up websites that agree to pay the providers a fee — a tactic critics have said could unfairly tilt the commercial playing field against startups and innovators who may not be able to afford it. More broadly, the decision affirms Washington's ability to regulate Internet providers like legacy telephone companies. Approved in a bitterly partisan vote last year, the move by the FCC to "reclassify" Internet providers significantly expanded the agency's role in overseeing the industry. It opened up Internet providers to all-new obligations they were not subject to before, such as privacy requirements that all telecom companies currently follow in order to protect consumers' personal data. Tuesday's opinion from the U.S. Court of Appeals for the D.C. Circuit comes months after a group of industry leaders, including AT&T and the nation's top cable association, sued the FCC in hopes of overturning the rules. They argued that the agency overstepped its congressionally granted authority in applying telecom-style rules to Internet providers, a class of industry that had been only lightly regulated during the Bush administration. The court verdict puts to rest — for now — a key question: Whether the Internet represents a vital communications platform that deserves to be regulated with the same scrutiny as the common networks of the past, such as the telephone system. Writing for the court, Judges David Tatel and Sri Srinivasan held that despite advances in technology, the underlying importance of the Internet to everyday communications and commerce makes it more similar to the phone system than not. Today, for example, consumers are accustomed to using not just the email accounts that their broadband provider gave them, but also using third-party services such as Gmail as well as Netflix, Amazon and Uber.