The purpose of the AMCA International Certified Ratings Program (CRP) is as follows: To provide the buyer, user and specifier assurance that the manufacturer?s published performance ratings of air system components are reliable and accurate, and further, to provide these parties with information on how the product was tested, what appurtenances were included, and other pertinent information so that they may be able to select an air system component that will provide the performance required. To provide a procedure for verification of the manufacturer?s performance ratings on a regular schedule by check testing of the certified product line in the AMCA International Laboratory. This document is to be used in conjunction with companion documents as applicable, such as AMCA publications 111, 211, 212, 311, 511, 611, 1011, and all known applicable Certified Ratings Program documents currently in use, and shall govern the AMCA International Certified Ratings Program.