On May 9, the Court of Appeals for the Ninth Circuit granted a petition for rehearing en banc filed by the FTC in a case involving whether the Commission may regulate an internet service provider’s slowing down of data after a customer has used a specified amount of data under an “unlimited” plan.

The FTC’s 2014 complaint alleged that AT&T’s practice of “data throttling,” and its subsequent failure to adequately inform its customers of this practice, violated Section 45(a) of the FTC Act. A federal district court dismissed the complaint, rejecting AT&T’s argument that it was exempt from FTC Section 45(a) enforcement because it is a common carrier. Section 45(a) allows the Commission to “prevent persons, partnerships or corporations, except . . . common carriers . . . from using . . . unfair or deceptive acts or practices” (emphasis added). The court held, however, that the common carrier exception applies only when the entity has the status of a common carrier and is engaging in common carrier activity. The district court order also held that “[w]hen this suit was filed, AT&T’s mobile data service was not regulated as common carrier activity by the [FCC],” and that “[o]nce the Reclassification Order of the [FCC] (which now treats mobile data [service] as common carrier activity) goes into effect, that will not deprive the FTC of any jurisdiction over past alleged misconduct as asserted in this pending action.”

In 2016, a three-judge Ninth Circuit panel reversed, holding that AT&T is exempt from Section 45(a) as a common carrier. See Fed. Trade Comm'n v. AT&T Mobility LLC, 835 F.3d 993 (9th Cir. 2016). The en banc court’s order vacates that ruling pending review by the full Ninth Circuit. Per the Ninth Circuit’s May 10 order, en banc oral argument will occur the week of September 18, 2017. The exact date and time will be announced in a separate order. Notably, given the recent uncertainty over which regulatory agency will oversee common carriers—the FTC or the FCC—the timing of this ruling is important.