At its second session (10 December 2004), the Committee of Experts on the Transport of Dangerous Goods and on the Globally Harmonized System of Classification and Labelling of Chemicals (GHS) adopted a set of amendments to the Model Regulations on the Transport of Dangerous Goods, which were consolidated in document ST/SG/AC.10/32/Add.1.

The fourteenth revised edition of the Recommendations takes account of all these amendments which concern, inter alia, the inclusion of new provisions (e.g.: default classification of fireworks, packing of waste aerosols sent for disposal and recycling, alternatives to the waterbath test for aerosols dispensers, procedure for accident or incident reporting, marking provisions for environmentally hazardous substances) or revision of existing provisions (e.g.: list of dangerous goods, alignment of the classification criteria with those of the Globally Harmonized System of Classification and Labelling of Chemicals (GHS), transport of infectious substances, label for Division 5.2, loading and stacking provisions).

Close cooperation with the International Atomic Energy Agency (IAEA) also continued, and the provisions concerning the transport of radioactive material have been revised to align with the IAEA "Regulations for the Safe Transport of Radioactive Material", 1996 Edition (As amended 2005).

The Committee adopted also amendments to the "Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria" (ST/SG/AC.10/32/Add.2), which will be published as an amendment to the fourth revised edition of the Manual (ST/SG/AC.10/11/Rev.4/Amend.1), as well as amendments to the "Globally Harmonized System of Classification and Labelling of Chemicals" (ST/SG/AC.10/32/Add.3) which are reflected in the first revised edition published as document ST/SG/AC.10/30/Rev.1.