If you are planning to take advantage of tax credits available through the Energy Policy Act of 2005, be sure to collect a Manufacturer's Certification Statement for each qualifying products you purchase and use. Manufacturers are encouraged to provide a listing of qualified products and related information on their websites to help taxpayers identify products that can qualify for the credit. Tax advisors typically recommend keeping the statements with purchase receipts. The Owens Corning certificate for energy saving products is now online as recommended, along with accompanying information. An Internal Revenue Service notice is available from the IRS.