(3)The classification criteria and labelling rules of the GHS are periodically reviewed at UN level. The third revised edition of the GHS was adopted in December 2008 by the United Nations Committee of Experts on the Transport of Dangerous Goods and on the Globally Harmonised System of Classification and Labelling of Chemicals (UNCETDG/GHS). It contains amendments concerning, inter alia, the provisions for the allocation of hazard statements and for the labelling of small packaging, new sub-categories for respiratory and skin sensitisation, the revision of the classification criteria for long-term hazards (chronic toxicity) to the aquatic environment and a new hazard class for substances and mixtures hazardous to the ozone layer. It is therefore necessary to adapt the technical provisions and criteria in the Annexes to Regulation (EC) No 1272/2008 to the third revised edition of the GHS.