ENERGY STAR Windows Program, Report No.4

This Market Progress Evaluation Report on the Northwest Energy Efficiency Alliance’s (Alliance) ENERGY STAR® Residential Fenestration Program (Program) covers the period from June 1999 through June 2000. The Program is designed to increase market share of residential high efficiency windows by working in partnership with market actors, including window product manufacturers, wholesaler/distributors, retail suppliers, the manufactured home industry, and builders.