Citing the receipt of hundreds of consumer complaints about unexpectedly high wireless bills, the FCC’s Consumer and Governmental Affairs Bureau issued a public notice Tuesday that solicits input on potential FCC rules that would require U.S. wireless carriers to alert customers who are close to exceeding their monthly usage limits for voice, Internet, and data. Describing the FCC’s initiative as an investigation into wireless “bill shock,” Consumer and Governmental Affairs Bureau Chief Joel Gurin noted that the proposed alert requirement would resemble rules currently in force in the European Union, where wireless carriers are required to send text messages to subscribers who run up excessive roaming charges or approach the limits of their data usage plans. The bureau’s inquiry will also form a part of the FCC’s larger “truth-in-billing” proceeding in which the FCC aims to improve transparency and the availability of information to wireless consumers. Maintaining that the problem of bill shock is “avoidable,” Gurin said, “we’re issuing a public notice to see if there’s any reason that American carriers can’t use similar automatic alerts to inform consumers when they are at risk of running up a high bill.” Observing that the complaints received by the FCC represent “less than four ten-thousands of a percentage of the industry’s total subscribers” and that customers of all four national U.S. wireless carriers already have the ability to access usage information through their handsets or the Internet, Steve Largent, the president of wireless association CTIA, replied: “we look forward to educating the Commission on all the carriers’ activities and offerings so that customers can stay informed.”