Abstract
Although Lillydahl et al. advocate the passage of state enabling legislation to clearly establish municipal authority to collect impact fees, the literature does not provide guidance for achieving this goal. The evolution of Pennsylvania's statute suggests that the following factors affect a bill's content and success: (1) the proportion of legislative districts confronting the problems of rapid growth; (2) the ability of interest groups to conduct effective grass roots campaigns; (3) the use of floor amendments to “catch the opposition off guard;” (4) effective communication between a bill's negotiators and its supporters; and (5) the appearance of flexibility on the part of the bill's supporters.