ISA/TC 37 conceived a scheme of four classes of recommendations for terminology standardization mentioned below, but the Second World War interrupted its pioneering work. Nominally, ISO/TC 37 was established from the very beginning of ISO in 1946, but it was decided to re-activate it only in 1951 and the Committee started operation in 1952. Since then until 2009 the secretariat of ISO/TC 37 has been held by the International Information Centre for Terminology (Infoterm), on behalf of the Austrian Standards International Austria. Infoterm, an international non-governmental organization based in Austria, continues to collaborate as a twinning . After this the administration went to CNIS (China).