The fundamental principals and requirements laid in the Agreement of 30 September 1957 concerning the International Carriage of Dangerous Goods by Road (ADR). The purpose of ADR is to ensure that dangerous materials, including chemicals and hazardous waste, are able to cross international borders as long as vehicles and drivers are in compliance with regulations.
DATA SOURCED FROM ESCO (EUROPEAN COMMISSION) & O*NET (U.S. DEPARTMENT OF LABOR)