IMDG 1: Introduction, General Provisions, and Classifications

  • 11 topics | 1h 4m 1s
  • Up to 30 languages
  • Transcripts
Shipping dangerous goods presents safety issues that must be addressed. The International Maritime Dangerous Goods (IMDG) Code was developed to help ensure dangerous goods are transported safely by sea. Its regulations provide the individuals who handle and ship dangerous goods with the information they need to do so safely. This course begins with an introduction to the IMDG Code, including its origins, purpose, and enforcement and training requirements. In the United States, the Pipeline and Hazardous Materials Safety Administration (PHMSA) develops and enforces regulations for the safe transport of dangerous materials. The connection between the two sets of regulations will be explained. A description of the IMDG Code is given as well as instruction on how to access and use the information it contains to determine if dangerous goods are regulated under the IMDG Code and PHMSA and how to ship them properly. This course was developed with subject matter support provided by EnSafe Inc., a global professional services company focusing on engineering, environment, health and safety, and information technology. Please note, the course materials and content were current with the laws and regulations at the time of the last expert review, however, they may not reflect the most current legal developments. Nothing herein, or in the course materials, shall be construed as professional advice as to any particular situation with respect to compliance with legal statutes or requirements.


  • recognize the purpose of the IMDG Code
  • identify the information for transporting dangerous goods found in each volume of the IMDG Code
  • recognize how to use the IMDG Code to safely ship goods
  • identify the criteria that must be met in order to use the IMDG Code to ship hazardous materials from, to, or within the United States
  • recognize how to use PHMSA to safely ship goods
  • recognize the hazard class name for each of the main hazard class numbers
  • classify dangerous goods using class names and numbers
  • recognize the methods to determine if a substance is regulated as a dangerous good according to the IMDG Code
  • determine if a substance is a regulated material or not
  • recognize the ways to determine the appropriate packing group for dangerous substances
  • identify the correct packing group for a hazardous substance


  • Introduction to the IMDG Code
  • Interpreting and Navigating the Code
  • Knowledge Check: The IMDG Code
  • PHMSA Compliance
  • Knowledge Check: PHMSA Regulations
  • Hazard Classifications of Dangerous Goods
  • Knowledge Check: Classifying Dangerous Goods
  • Identifying Regulated Materials
  • Knowledge Check: Identifying Regulated Substances
  • Packing Groups
  • Knowledge Check: Determining Packing Groups