rifles

A federal appeals court panel Friday unanimously upheld an Obama administration requirement that dealers in southwestern border states report when customers buy multiple high-powered rifles.

The firearms industry trade group, the National Shooting Sports Foundation, and two Arizona gun sellers had argued that the administration overstepped its legal authority in the 2011 regulation, which applies to gun sellers in California, Arizona, New Mexico and Texas.

The requirement, issued in what is known as a demand letter, compels those sellers to report to the Bureau of Alcohol, Tobacco, Firearms and Explosives when anyone buys — within a five-day period — two or more semi-automatic weapons capable of accepting a detachable magazine and with a caliber greater than .22. The ATF says the requirement is needed to help stop the flow of guns to Mexican drug cartels.