At its second session (10 December 2004), the Committee of Experts adopted a set of amendments to the GHS, which were consolidated in document ST/SG/AC.10/32/Add.3 and ST/SG/AC.10/32/Add.3/Corr.1. The first revised edition of the GHS (GHS Rev.1 - 2005) takes account of all these amendments, which include various revised provisions concerning classification and labelling, new provisions for aspiration hazards and new guidance on the use of precautionary statements and pictograms and on the preparation of safety data sheets.