# Council on the Safe Transportation of Hazardous Articles — Hazardous Materials Safety Interpretation

- **operation:** document
- **citation:** 20-0095
- **title:** Council on the Safe Transportation of Hazardous Articles — Hazardous Materials Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 2020-12-22
- **effective on:** Not available
- **summary:** 20-0095 response to Council on the Safe Transportation of Hazardous Articles concerning 172.600, 172.602, 172.604, 172.606.
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-interpretation-20-0095.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-interpretation-20-0095.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-20-0095
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/docs/standards-rulemaking/hazmat/interpretations/74606/200095.pdf
**body:**

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U.S. Department
of Transportation
Pipeline and Hazardous
Materials Safety
Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
December 22, 2020
Tom Ferguson
Senior Technical Consultant
Council on the Safe Transportation of Hazardous Articles
10 Hunter Brook Lane
Queensbury, NY 12804
Reference No. 20-0095
Dear Mr. Ferguson:
This letter is in response to your October 2, 2020, email requesting clarification of the Hazardous
Materials Regulations (HMR; 49 CFR Parts 171-180) applicable to emergency response
information. Specifically, you discuss usage of the Emergency Response Guidebook (ERG)
mobile app by drivers of motor vehicles. We have paraphrased and answered your questions as
follows:
Q1. You ask whether display of emergency response information through the ERG mobile
app on an electronic device (e.g., smartphone or tablet) meets the requirements of the
HMR.
A1. The answer is no. The information used to meet the requirements of Part 172, Subpart G
(§§ 172.600-172.606) must be in the form of a physical document printed legibly in
English (see § 172.602(b)). Electronic display of emergency response information,
whether through the ERG app or other means, does not meet the HMR’s requirements.
Q2. You ask whether PHMSA would consider revising the HMR to authorize electronic
display of emergency response information as a way to meet emergency response
requirements.
A2. The answer is yes. PHMSA continually revises the HMR to address developments in
technology and transport methods that provide for an appropriate level of safety for the
transportation of hazardous materials. You may ask PHMSA to add, amend, or delete a

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regulation by filing a petition for rulemaking in accordance with rulemaking procedures
in §§ 106.95-106.105.
I hope this information is helpful. Please contact us if we can be of further assistance.
Sincerely,
Dirk Der Kinderen
Chief, Standards Development Branch
Standards and Rulemaking Division

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Patrick
20-0095
From: Foster, Glenn (PHMSA)
To: Dodd, Alice (PHMSA)
Subject: Use of Electronic ERG
Date: Tuesday, December 8, 2020 3:44:59 PM
From: Tom Ferguson <Tom@costha.com>
Sent: Friday, October 2, 2020 4:55 PM
To: Kelley, Shane (PHMSA) <shane.kelley@dot.gov>
Cc: Foster, Glenn (PHMSA) <Glenn.Foster@dot.gov>; Chris Yakush <Chris@costha.com>
Subject: Use of Electronic ERG
Shane,
I would like to get an interpretation from PHMSA on the official use of the Emergency Response
Guidebook by drivers of road vehicles, and whether the document is required to be in paper form or
whether electronic access through the ERG app is acceptable. If the paper form is mandatory, would
PHMSA consider permitting electronic usage in a future rulemaking?
If you need additional clarification on the request, I am happy to discuss.
Thanks!
Tom Ferguson, PG, CHMM, DGSA
Senior Technical Consultant
Council On Safe Transportation of Hazardous Articles (COSTHA)
10 Hunter Brook Lane
Queensbury, NY 12804
O: 518-761-0389
F: 518-792-7781
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This information is intended to provide interpretative and authoritative information in regard
to the subject matter covered as a service to our clients and has been answered to the best
of our ability based on the information provided to us. We do not guarantee the accuracy or
completeness of any such interpretation or information, however, nor do we warrant that
compliance with any advice we provide will guarantee compliance with any legal or
regulatory requirements. Our statements or opinions do not convey legal interpretation and
government authorities or legal counsel should be contacted for such a response.
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