As AT&T and Verizon battle one another over who can own the most spectrum, the FCC may take another look at just how much spectrum individual carriers should be allowed to hold. The FCC currently uses a "spectrum screen" to determine whether to more heavily scrutinize mergers or spectrum acquisitions, and is expected to vote in September on an order tasked with reviewing those standards. Consumer advocates have long argued that AT&T and Verizon have been stockpiling too much spectrum below 1 gigahertz in order to thwart potential competitive entrants, while AT&T has accused the FCC of being too slow when reviewing potential transactions.