The New York Times Bits Blog reports that Comcast filed a suit in the United States Court of Appeals in Washington to challenge the FCC’s sanctions over it’s throttling of certain protocols on customers connections. Comcast is challenging the FCC’s ability to sanctions companies without first publishing a rule about the issue at hand. Under the current FCC chairman Kevin Martin, the FCC has published broad principles and has only taken action when it finds practices it objects to. Comcast complains that by bypassing formal rules, their ability to put forth their side of issue is restricted.