# Veolia ES Technical Solutions, L.L.C. — Hazardous Materials Safety Interpretation

- **operation:** document
- **citation:** 14-0025
- **title:** Veolia ES Technical Solutions, L.L.C. — Hazardous Materials Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 2014-04-01
- **effective on:** Not available
- **summary:** 14-0025 response to Veolia ES Technical Solutions, L.L.C. concerning 173.21, 177.804.
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-interpretation-14-0025.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-interpretation-14-0025.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-14-0025
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/2014/140025.pdf
**body:**

<<<PAGE 1>>>

U.S. Department
of Transportation
Pipeline and Hazardous
Materials Safety
Administration
1200 New Jersey Avenue, SE
Washington, D.C. 20590
l!?~ 0 1 2014
Ms. Jennifer Eberle
Manager, Transportation Compliance
Veolia ES Technical Solutions, L.L.C.
1 Eden Lane
Flanders, NJ 07836
Ref. No.: 14-0025
Dear Ms. Eberle:
This responds to your February 10,2014 email requesting clarification ofthe Hazardous Materials
Regulations (HMR; 49 CFR Parts 171-180) applicable to the audible warning device requirements
of§ 173.21 (f)(3 )(i)(C) when transporting self-reactive or organic peroxide materials requiring
temperature control. Your questions are paraphrased and answered as follows:
Q 1. Would use of a vehicle operator's mobile device to receive SMS text messages (sent from
the mechanical refrigeration unit by means of an electronic temperature probe) set to a
specific sound tone used only for alerts related to the temperature of the refrigeration unit
meet the definition of an audible warning device as required in § 173.21 (f)(3)(i)(C)?
AI. The answer is yes. Section 173.21(f)(3)(i)(C) states that the warning device must be readily
visible or audible, as appropriate, from the vehicle operator's seat in the vehicle. A specific
sound tone audible on the operator's mobile device would satisfY this requirement.
Q2. Would such use of the vehicle operator's mobile device set to receive audible warnings
violate the prohibitions in §177.804(b)(2) and (3) ifthe motor carrier does not allow or
require the driver to provide a message in response to the alert until he or she has safely
parked and is no longer driving the vehicle?
A2. The answer is no. A specific sound tone that would not require the operator to view or
handle the mobile device while driving would not violate the prohibitions in § 177.804(b )(2)
and (3).
I hope this satisfies your inquiry. Please contact us ifwe can be of further assistance.
Sincerely,
Duane A. Pfund v ..,- U \-
~~,1~
International Standards Coordinator
Standards and Rulemaking Division

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February 7, 2014
Standards and Rulemaking Division
Pipeline and Hazardous Materials Safety Administration
Attn: PHH-10
U.S. Department of Transportation
East Building
1200 New Jersey Avenue, SE
Washington D.C. 20590-0001
RE: Request for Interpretation Regarding Audible Warning Device
Dear Sir or Madam:
Please accept this letter as a request for a formal written letter of interpretation from your
office. Veolia wishes to receive clarification related to the requirements of
§173.21(f)(3)(i)(C) as it applies to the definition of an acceptable audible warning device
when transporting self-reactive or organic peroxide materials which require temperature
controls.
§173.21(f)(3)(i)(C) requires, "The vehicle operator shall monitor the inside temperature of
the transport vehicle, freight container, or motor vehicle and enter that temperature on a
written record at the time the package is loaded and thereafter at intervals not exceeding
two hours. Alternatively, a transport vehicle, freight container, or motor vehicle
may be equipped with a visible or audible warning device that activates when the
inside temperature of the transport vehicle, freight container, or motor vehicle
exceeds the control temperature required for the material. The warning device
must be readily visible or audible, as appropriate, from the vehicle operator's seat
in the vehicle. II
Modern technology has provided a means of transporting temperature controlled materials
in a mechanical refrigeration unit equipped with an electronic probe which continuously
monitors the internal temperature of the unit. The probe is set with pre-defined
temperature ranges as appropriate for each shipment and has the ability to send automated
alerts if there are any excursions outside of the set temperature range. Vehicle operators
are notified of alarm conditions in the form of an SMS text message via mobile device.
Upon receiving the audible alert, the driver would safely park the vehicle and take any
necessary emergency action.
1. Would use of a vehicle operator's mobile device to receive SMS text
messages set to a specific sound tone used only for alerts related to the
temperature of the refrigeration unit meet the definition of an audible
warning device as required in §173.21(f)(3)(i)(C)?
2. Would such use of the vehicle operator's mobile device set to receive
emergency messages violate the prohibitions set in §177.804(b)(2) & (3) if
the motor carrier does not allow or require the driver to provide a message
in response to the alert until he or she has safely parked and is no longer
driving the vehicle?
Veolia ES Technical Solutions, L.L.C.
1 Eden Lane
Flanders, NJ 07836
jennifer.eberle@veolia.com
(973) 691-7331

<<<PAGE 3>>>

Your written response to this question is greatly appreciated. If you require any further
information regarding this letter please contact me at 973-691-7331 or
jennifer.eberle@veolia.com.
Thank you,
Jennifer Eberle
Manager, Transportation Compliance
Veolia ES Technical Solutions, L.L.C.
1 Eden Lane
Flanders, NJ 07836
jennifer.eberle@veolia.com
(973) 691-7331
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