Wikipedia
The IECEE is the IEC System of Conformity Assessment Schemes for Electrotechnical Equipment and Components being a body of the International Electrotechnical Commission. The IEC uses the name IECEE for the IEC System for Conformity Testing and Certification of Electrotechnical Equipment and Components that is better known as the CB System
The predecessor of IECEE was a European body founded under the name of Commission internationale de réglementation en vue de l'approbation de l'équipement électrique (International commission on rules for the approval of electrical equipment) known as CEE. Historically this certification process goes back to 1929 based on an initiative by the German VDE ( Verband der Elektrotechnik, Elektronik und Informationstechnik).
CEE also devised and published standards for electrical equipment, most of which have been superseded by IEC standards.