In the IBC 2000 and 2003 versions of the code, approved agencies need to be employed to do the actual testing and analysis. The agencies guarantee through independent review and analysis that equipment will meet the specified design standards. The manufacturer of certified equipment must supply equipment labels indicating the agency that has certified their product. The 2006 version of the code implies that manufacturers can “self-certify.” However, when labeling of equipment is required, it still needs to carry the designation of an approved agency.