This report covers the economic impact analysis of hazardous waste management regulation on the leather tanning and finishing industry (SIC 3111). For purposes of the study, the industry was segmented by different types of firms and plants that produce hazardous waste. A total of six different segments were eventually established and described. Of the six segments, four were sub-categorized according to representative plant sizes. Furthermore, the study includes an impact analysis methodology, evaluation of financial conditions, description of price determinants and other factors affecting supply and demand, costs of compliance, estimation of impacts and limits of the analysis. The imposition of a hazardous waste management regulation on the industry is estimated to generally create minor impacts on leather tanners. No tanners are expected to close because of increased costs although split tanners could be forced to shut down if costs are slightly higher than used in the analysis. With costs 20 percent higher, split tanners are projected to experience negative net present value and would be assumed to shut down. Other impacts, such as on prices, production, employment and international trade, are projected to be negligible.