It is almost universally accepted that when agencies develop regulations, they should solicit early input from those affected by their decisions. Just as uncontroversial is the idea that agencies should consider multiple solutions to a policy problem before deciding on an approach. Still, the limited research that analyzes these aspects of agency practice offers only mixed support that agencies do consider alternatives and use early public input in developing rules. Last year, the Administrative Conference of the United States (ACUS) tasked us to conduct a further study of whether agencies engage in these practices when developing rules. To study agency consideration of alternatives during rulemakings, we employed two approaches. First, ...