When the U.S. Congress enacted the Administrative Procedure Act (APA) in 1946 one of its most innovative aspects was the notice and comment process. Informal rulemaking itself was a novel approach to policymaking at the time, as many agencies previously had produced policy iteratively through decisions issued in individual cases. And the idea of allowing interested stakeholders to offer input to the agency that it was legally obligated to consider was perhaps the most unique feature of this new approach. But the framers of the APA do not appear to have given extensive thought to the precise purposes the comment process would serve. On the one hand, based on a review of the legislative history, it appears that the drafters intended the comm...