EPA is requesting written comments regarding the Agency's role in the measurement of materials in the following waste streams: municipal solid waste (MSW), construction and demolition materials, and non-hazardous industrial materials; and the sustainable management of these materials through recycling, waste minimization and source reduction. The Agency has issued a Federal Register notice asking for comments on these aspects of measurement. All comments must be received by 4:30 pm EST August 31, 2011.