How to Use the ERG

How to Use the ERG, page 3HOW TO USE THIS GUIDEBOOK RESIST RUSHING IN! APPROACH INCIDENT FROM UPWIND, AND UPHILL AND/OR UPSTREAM STAY CLEAR OF ALL SPILLS, VAPORS, FUMES, SMOKE, AND POTENTIAL HAZARDS WARNING: DO NOT USE THIS FLOWCHART if more than one hazardous material/dangerous good is involved. Immediately call the appropriate emergency response agency telephone number listed on the inside back cover of this guidebook. For chemical or biological warfare agents, refer to the “Criminal or Terrorist Use of Chemical, Biological and Radiological Agents” section. YES Do you see an explosive placard or label? For Divisions 1.1, 1.2, 1.3, or 1.5 Use GUIDE 112 For Divisions 1.4 or 1.6 Use GUIDE 114 NO Do you know the UN/NA ID number? Do you know Do you see NO NO NO the name of a placard or the material? label? Do you see a railcar or road trailer? NO Use GUIDE 111 YES YES YES YES Search for the ID number in the Yellow Pages Search for the material in the Blue Pages Refer to Pages 8-9 Refer to Pages 10-15 Determine the Guide Number If the Guide Number has a “P” next to it, the material may suffer a violent polymerization Is the material highlighted in green? NO Use the appropriate Orange Guide YES YES NO USE the appropriate Orange Guide for EVACUATION distances, THEN USE TABLE 1 for isolation and protective action distances, AND PROTECT in downwind direction according to T ABLE 1 for residual material release CONSULT the appropriate Orange Guide If product includes the reference (when spilled in water), consult TABLE 2 for a list of the generated gases (for information purposes only), AND do not use water as extinguishing agent. BEFORE AN EMERGENCY - BECOME FAMILIAR WITH THIS GUIDEBOOK! First responders must be trained in the use of this guidebook. Page 1#

How to Use the ERG, page 4LOCAL EMERGENCY TELEPHONE NUMBERS Please populate this section with emergency telephone numbers for local assistance: HAZMAT CONTRACTORS RAIL COMPANIES FEDERAL/STATE/PROVINCIAL AGENCIES OTHERS Page 2#

How to Use the ERG, page 5TABLE OF CONTENTS Shipping Papers (Documents) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Inside front cover How to Use this Guidebook . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Local Emergency Telephone Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Notification and Request for Technical Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Hazard Classification System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Introduction to the Table of Markings, Labels and Placards . . . . . . . . . . . . . . . . . . . . . . . . . .7 Table of Markings, Labels and Placards and Initial Response Guide to Use On-scene . . . . .8 Rail Car Identification Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 Road Trailer Identification Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 Globally Harmonized System of Classification and Labeling of Chemicals (GHS) . . . . . . . .16 Hazard Identification Numbers Displayed on Some Intermodal Containers . . . . . . . . . . . . .18 Pipeline Transportation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 ID Number Index (yellow section) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28 Name of Material Index (blue section) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88 How to Use the Orange Guides . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .148 General First Aid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .150 Guides (orange section) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .152 Introduction to Green Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .280 Protective Actions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .283 Protective Action Decision Factors to Consider . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .284 Background on Table 1 – Initial Isolation and Protective Action Distances . . . . . . . . . . . . .286 Table 1 – Initial Isolation and Protective Action Distances . . . . . . . . . . . . . . . . . . . . . . . . .288 Table 2 – Water-Reactive Materials which Produce Toxic Gases . . . . . . . . . . . . . . . . . . . .334 Table 3 – Initial Isolation and Protective Action Distances for Large Spills for Different Quantities of Six Common TIH (PIH in the US) Gases . . . . . . . . . . . . . . .340 ERG2024 User’s Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .344 Protective Clothing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .350 Decontamination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .352 Fire and Spill Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .353 Considerations for Lithium Battery and Electric Vehicle (EV) Fires . . . . . . . . . . . . . . . . . . .356 BLEVE and Heat Induced Tear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .357 BLEVE – Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .358 Criminal or Terrorist Use of Chemical, Biological and Radiological Agents . . . . . . . . . . . .360 Improvised Explosive Device (IED) Safe Stand-Off Distance . . . . . . . . . . . . . . . . . . . . . . .367 Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .369 Publication Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .380 Canada and United States National Response Centers . . . . . . . . . . . . . . . . . . . . . . . . . . .384 ERAP – Emergency Response Assistance Plans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .385 24-Hour Emergency Response Telephone Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . .388Page 3#

How to Use the ERG, page 6SAFETY PRECAUTIONS RESIST RUSHING IN! APPROACH CAUTIOUSLY FROM UPWIND, UPHILL AND/OR UPSTREAM: • Stay clear of Vapor, Fumes, Smoke and Spills. • Keep vehicle at a safe distance from the scene. SECURE THE SCENE: • Isolate the area and protect yourself and others. IDENTIFY THE HAZARDS USING ANY OF THE FOLLOWING: • Placards • Container labels • Shipping papers • Rail Car and Road Trailer Identification Chart • Safety Data Sheets (SDS) • Knowledge of persons on scene • Consult applicable orange guide ASSESS THE SITUATION: • Is there a fire, a spill or a leak? • What are the weather conditions? • What is the terrain like? • Who/what is at risk: people, property or the environment? • What actions should be taken – evacuation, shelter-in-place or dike? • What resources (human and equipment) are required? • What can be done immediately? OBTAIN HELP: • Advise your headquarters to notify responsible agencies and call for assistance from qualified personnel. RESPOND: • Enter only when wearing appropriate protective gear. • Rescue attempts and protecting property must be weighed against you becoming part of the problem. • Establish a command post and lines of communication. • Continually reassess the situation and modify response accordingly. • Consider safety of people in the immediate area first, including your own safety. ABOVE ALL: Do not assume that gases or vapors are harmless because of lack of a smell – odorless gases or vapors may be harmful. Use CAUTION when handling empty containers because they may still present hazards until they are cleaned and purged of all residues. Page 4#

How to Use the ERG, page 7NOTIFICATION AND REQUEST FOR TECHNICAL INFORMATION Follow the steps outlined in your organization’s standard operating procedures and/or local emergency response plan for obtaining qualified assistance. Generally, the notification sequence and requests for technical information beyond what is available in this guidebook should occur in the following order: 1. NOTIFY YOUR ORGANIZATION/AGENCY • Based on information provided, this will set in motion a series of events. Actions may range from dispatching additional trained personnel to the scene, to activating the local emergency response plan. • Ensure that local fire and police departments have been notified. 2. CALL THE EMERGENCY RESPONSE TELEPHONE NUMBER ON THE SHIPPING PAPER • If shipping paper is not available, use guidance under next section “NATIONAL ASSISTANCE”. 3. NATIONAL ASSISTANCE • Contact the appropriate emergency response agency listed on the inside back cover of this guidebook. • Provide as much information about the hazardous material/dangerous good and the nature of the incident. • The agency will provide immediate advice on handling the early stages of the incident. • The agency will also contact the shipper or manufacturer of the material for more detailed information if necessary. • The agency will request on-scene assistance when necessary. 4. PROVIDE AS MUCH OF THE FOLLOWING INFORMATION AS POSSIBLE: • Your name, call-back telephone number, fax number • Location and nature of problem (spill, fire, etc.) • Name and identification number of material(s) involved • Shipper/consignee/point-of-origin • Carrier name, rail car or truck number • Container type and size • Quantity of material transported/released • Local conditions (weather, terrain) • Proximity to schools, hospitals, waterways, etc. • Injuries and exposures • Local emergency services that have been notified Page 5#

How to Use the ERG, page 8HAZARD CLASSIFICATION SYSTEM The hazard class of hazardous materials/dangerous goods is indicated either by its class (or division) number or name. Placards are used to identify the class or division of a material. The hazard class or division number must be displayed in the lower corner of a placard and is required for both primary and subsidiary hazard classes and divisions, if applicable. For other than Class 7 placards, text indicating a hazard (for example, "CORROSIVE") is not required. Text is shown only in the U.S. The hazard class or division number and subsidiary hazard classes or division numbers placed in parentheses (when applicable), must appear on the shipping paper after each proper shipping name. Class 1 - Explosives Division 1.1 Division 1.2 Division 1.3 Division 1.4 Division 1.5 Division 1.6 Explosives which have a mass explosion hazard Explosives which have a projection hazard but not a mass explosion hazard Explosives which have a fire hazard and either a minor blast hazard or a minor projection hazard or both, but not a mass explosion hazard Explosives which present no significant hazard Very insensitive explosives with a mass explosion hazard Extremely insensitive articles which do not have a mass explosion hazard Class 2 - Gases Division 2.1 Flammable gases Division 2.2 Non-flammable, non-toxic* gases Division 2.3 Toxic* gases Class 3 - Class 4 - Flammable liquids (and Combustible liquids [U.S.]) Flammable solids; Substances liable to spontaneous combustion; Substances which, on contact with water, emit flammable gases Division 4.1 Flammable solids, self-reactive substances and solid desensitized explosives Division 4.2 Substances liable to spontaneous combustion Division 4.3 Substances which in contact with water emit flammable gases Class 5 - Oxidizing substances and Organic peroxides Division 5.1 Oxidizing substances Division 5.2 Organic peroxides Class 6 - Toxic* substances and Infectious substances Division 6.1 Toxic* substances Division 6.2 Infectious substances Class 7 - Radioactive materials Class 8 - Corrosive substances Class 9 - Miscellaneous hazardous materials/dangerous goods and articles * The words “poison” or “poisonous” are synonymous with the word “toxic”. Page 6#