National Evaluation Services Information

The National Evaluation Service is a non-profit organization that conducts a voluntary and advisory program of evaluation for both traditional and innovative building materials, products and systems to facilitate their acceptance and safe installation. NES develops technical reports containing descriptions of a building construction material or product, together with a list of conditions necessary for compliance with each of the model codes, as promulgated by Building Officials and Code Administrators International, Inc. (BOCA), International Conference of Building Officials (ICBO), and Southern Building Code Congress International, Inc. (SBCCI) as well as the International Codes of the ICC. The NES also operates a Building Innovation Center that is focused on efforts to enhance the evaluation and acceptance of innovative building technologies and address issues such as durability, maintenance and technology performance beyond the minimum requirements in building codes and standards.