The 17th revised edition of the UN Recommendations on the Transport of Dangerous Goods (ie Model Regulations or the UNRoTDG) is now available online in English and French.
http://live.unece.org/trans/danger/publi/unrec/rev17/17files_e.html
This document, the Orange Book, is a non-binding framework of transport regulations and not an officially enforced international or regional law. The transport carrier agencies do use it as a guide for their legally binding regulations for air/land/sea/regional DG transportation (eg US DOT, TC/TDG, ADR/RID, IATA/ICAO, IMO/IMDG, etc.) but can and do deviate from it.
Nexreg Compliance
