What is the Emergency Response Guidebook?


November 28, 2024

A transportation incident involving a truck carrying hazardous materials and dangerous goods.

The Emergency Response Guidebook (ERG) is a guidebook designed to help first responders (fire fighters and police) during the initial phase of a transportation incident involving hazardous materials or dangerous goods.

Key Functions of the ERG

It provides information on:     

  • Identifying hazards: Based on the material involved in the incident.     
  • Protecting themselves and the public: During the initial response to the incident.

Collaborative Effort Behind the ERG

The ERG is a joint effort of the transportation agencies of the United States (Department of Transportation), Canada (Transport Canada), Mexico, and Argentina. It is available in standard and pocket sizes and is an essential tool for emergency responders in North America. It has also been converted into an app.   

This guidebook is designed for dangerous goods incidents on a highway or rail line. It may be less useful at fixed-facility locations, on aircrafts or vessels.  

Limitations of the ERG

The guidebook does not:  

  • Include information on the physical or chemical properties of dangerous goods. You would need the Safety Data Sheet for this information.   
  • Replace emergency response training, knowledge, and good judgment.  
  • Address every possible factor related to a dangerous goods incident.  

Key Features of the ERG:

  • Easy-to-use format: The guidebook is organized by placard numbers and provides clear instructions on how to identify hazards and take appropriate actions.  
  • Comprehensive information: The ERG covers a wide range of hazardous materials, including gases, liquids, solids, and radioactive materials.  
  • Up-to-date information: The ERG is updated regularly to reflect changes in regulations and technology. 

How to Use the ERG:

  1. Identify the hazard: Look for the placard on the vehicle or container involved in the incident.
  2. Find the placard number: The placard number is in the top left corner of the placard. The placard number is the UN number for the hazardous substance. It is composed of four digits.
  3. Look up the placard number in the ERG: The ERG is organized by placard number.
  4. Follow the instructions: The ERG provides specific instructions on how to respond to the incident, including evacuation procedures, protective measures, and emergency contact information.

Quick-Access Design

The ERG is designed with colored borders to allow users to quickly find critical information on how to respond, including:  

  • instructions on notifying authorities,  
  • identifying hazardous materials,  
  • obtaining assistance from specialized response teams and  
  • initial steps for containing the emergency.

Importance of the ERG in Emergency Response

The ERG allows first responders to quickly identify the hazard by the UN number on the placard and take the appropriate measures to control the situation. Accurate identification of the hazard is critical for a proper response to an emergency hazmat incident. It is required to assess the potential risks of the situation and respond accordingly.

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