“…This discussion differs from recent work on regulatory policy design and implementation in several important respects. Much of the recent research has focused on explaining regulatory enforcement at the street level as mediated by such factors as values and attitudes of regulatory agents [Hedge, Menzel, and Krause, 1989;Hedge, Menzel, and Williams, 1988;Shover et al, 19841, and political and economic pressures [Hedge, Scicchitano, and Metz, 1991;Scholz, 1991;Scholz, Twombly, and Headrick, 1991;Scholz and Wei, 1986;Thompson and Scicchitano, 1985;Wood, 19921. In contrast, my emphasis is the top of the implementation chain, in looking at the ways in which various features of state mandates facilitate relevant state agencies' implementation actions. While much of the implementation literature has shifted its attention to the bottom of the implementation chain in studying factors affecting target-group actions [see Palumbo and Calista, 19901, there is still a need for more systematic investigation of presumptions about the ways in which policy design shapes implementation.…”