This authoritative Agreement is intended to increase the safety of international transport of dangerous goods by road. Regularly amended and updated since its entry into force, it contains the conditions under which dangerous goods may be carried internationally. This version has been prepared on the basis of amendments applicable as from 1 January 2013. It contains in particular new or revised provisions concerning chemicals under pressure, electric double layer capacitors, mercury contained in manufactured articles, dangerous goods used as a coolant or conditioner, salvage pressure receptacles, lithium batteries, dangerous goods packed in limited quantities, dangerous goods packed in minute quantities and packing instructions, as well as revised provisions for portable fire extinguishers and new restrictions in road tunnels for dangerous goods carried in limited quantities.