The report summarizes information from the first two phases of a five-phase cooperative effort to apply pollution prevention techniques to reduce indoor air emissions from engineered wood products. Research objectives of the effort are to characterize indoor air emissions from engineered wood products and to identify and evaluate pollution prevention approaches for reducing indoor air emissions from these products. The research's five phases are to: (1) evaluate existing data and testing methodologies; (2) convene research planning meetings; (3) select high-priority emissions sources; (4) evaluate high-priority emissions sources; and (5) develop and demonstrate pollution prevention approaches for reducing indoor air emissions from high-priority sources.