Claiming that the FCC overstepped its authority in granting mobile satellite service (MSS) firm LightSquared LLC a waiver of the agency’s rules to allow resellers to use the company’s ancillary terrestrial component (ATC) license to offer stand-alone terrestrial services, petitioners against the ruling told the agency this week that a rulemaking proceeding constitutes the only appropriate methodology for addressing LightSquared’s proposal. Although the FCC requires MSS licensees to operate ATCs as part of an integrated service with the MSS component, the agency’s International Bureau ruled last month that a waiver of the rules to facilitate standalone terrestrial services via LightSquared’s authorized ATC spectrum was warranted on grounds that such an action would spur the deployment of wireless broadband. The bureau also conditioned waiver approval upon LightSquared’s participation in a working group with the NTIA and with representatives of the global positioning system (GPS) industry that would address GPS interference concerns. In a joint application for review, the U.S. GPS Industry Council, the Air Transport Association, Garmin International and Trimble Navigation complained that the waiver “exceeded the scope of [the bureau’s] delegated authority by addressing novel issues not previously considered by the Commission and on which existing policy mandated a contrary result.” The joint petitioners also advised the FCC that “fundamental changes of this nature can only be accomplished” through the rulemaking process. Similarly, Deere, a user of L-band frequencies adjacent to those used by LightSquared, urged the FCC to “give proper weight to incumbent spectrum user concerns” through a notice of proposed rulemaking as it characterized the waiver order as “more akin to a spectrum reallocation.”