# Guthrie Heli-Arc, Inc. — Hazardous Materials Safety Interpretation

**Citation:** 19-0125  
**Type / status:** guidance / guidance  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2020-02-27

19-0125 response to Guthrie Heli-Arc, Inc. concerning 180.407, 180.415.

## Document text

<<<PAGE 1>>>

IKristen Powell
IGuthrie Heli-Arc, Inc I Tracking 119-0125
1585-494-2600 Revision Date: 110/30/2019 I
10/17/2019 110/30/2019 I
IPHH-1 0 -Specialist St2t 110/30/2019 I
I ILLI1iVH I
HBPLJ Copy to Docket JJ Copy to DHM-60

<<<PAGE 2>>>

Dodd, Alice (PHMSA) (\ O\
From: INFOCNTR (PHMSA)
Sent: Wednesday, October 30, 2019 2:24 PM
To: Hazmat Interps
Subject: FW: Guthrie Hell-Arc, Inc. -Request of Interpretation
Attachments: G uthrie- Request of i nterpretation.pdf
Hello Alice and lkeya,
Please see attached for letter of interpretation request. The requester spoke with Sarah and Jonathon in the HMlC who
were unable to find any letters or guidance that addressed the question. After reaching out to Ryan, they went to Victor
Casillas who confirmed with Mike C and Dirk that the regulations do not define hazardous material transportation
service so there is no way to indicate if it has to be legal transportation to be considered "in service" to determine when
tests have to be completed.
Please contact our office with any questions.
Thank you,
Kathryn, HMIC
From: kristen@guthrieheliarc.com [mailto:kristen@guthrieheliarc.com]
Sent: Wednesday, October 30, 2019 12:08 PM
To: INFOCNTR (PHMSA) <INFOCNTR.INFOCNTR@dot.gov>
Cc: 'Matt Ryan' <mattr@guthrieheliarc.com>; megr@guthrieheliarc.com
Subject: Guthrie Hell-Arc, Inc. -Request of Interpretation
Please see the attached Request of Interpretation.
Mailing Address: 6276 Clinton Street Rd Bergen, NY 14416
Thank You,
Kristen Powell
Guthrie Hell-Arc, Inc
6276 Clinton Street Road
Bergen, NY 14416
Phone: 585-494-2600
Fax: 585-494-2662
2avast This email has been checked for viruses by Avast antivirus software.
www.avast.com

<<<PAGE 3>>>

Guthrie Heli-Arc, lnc./Guthrie Sales & Service
6276 Clinton Street Road
Bergen, NY 14416
Phone: 585-494-2600
Fax: 585-494-2662
R stamp Number: 2711
Email: mattrquthrieheliarc.com
Cer SRWOSB
Woman Owned Small Bus1ness
To whom it may concern:
We have been involved in the federal tank inspection since 1991. We currently
have a situation that we would like to have reviewed and a letter of interpretation
provided.
We have a long standing customer which we perform all annual V, K and I , P
testing on their MC331 propane bobtail trucks. The truck in question had an annual
V, K per-formed by our facility on 9/2017. The customer did not have an annual test
performed at all in 2018. It is now October 2019 and this tank has been out of
federal compliance for more than a year (13 months) since its last V, K test date.
However, the customer has told us that it was still being used (illegally/out of
compliance) for deliveries to date. As we were scheduled to perform annual V, K
testing on his other equipment, this particular truck in question was also in need of
an annual V, K.
According to the DOT regulation, 180.415 (b) (3), "The cargo tank has been out of
hazardous material transportation service for a period of one year or more. Each
cargo tank has been out of hazardous materials transportation service for a period
of one year or more must be pressure tested in accordance with 180.407 (g) prior
to further use."
It is our interpretation that this unit is in need of a pressure test (180.407 (g)) prior
to us performing the request for an annual V, K. The customer disagrees and
states that the equipment is still in service because it is able to deliver product and
has continued to be on the road regardless of it being illegal/out of compliance.
Per the regulation, what is the definition of "service"? It is our belief that if a federal
regulated vessel does not follow the mandatory testing to be DOT compliant then
they are rendered "out of service". Therefore in this situation, the customer has
been "out of service" for over the one year period.
Please provide us with your input and a letter of interpretation regarding this
situation.
Best Regards,
Matthew Ryan-Owner/Registered Inspector
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<<<PAGE 4>>>

US. Department 1200 New JerseyAvenue, SE
of Transportation Washington, DC 20590
Pipeline and Hazardous
Materials Safety
Administration
Kristen Powell FEB 27 202fl
Guthrie Heli-Arc, Inc
6276 Clinton Street Road
Bergen,NY 14416
Reference No. 19-0125
Dear Ms. Powell:
This letter is in response to your October 30, 2019, email requesting clarification of the
Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180) applicable to the testing
requirements for a Department of Transportation (DOT) Specification MC 331 cargo tank. You
describe a scenario in which an MC 331 cargo tank underwent external visual inspection and
leakage testing in September 2017, but did not undergo any testing in 2018. Your company was
scheduled to perform external visual inspection and leakage testing on the cargo tank in October
2019 and determined that a pressure test was also required. However, your customer stated that
the cargo tank is still being used for deliveries and is, therefore, still in "hazardous materials
transportation service" even though it has been out of Federal compliance for more than a year.
Specifically, you ask for the definition of "service" and seek confirmation of your understanding
that an MC 331 cargo tank that is not compliant with the HMR would be considered "out of
service."
In your email, you reference § 180.415(b)(3); however, it is § 180.407(b)(3) that states:
The cargo tank has been out ofhazardous materials transportation servicefor aperiodof
one year or more. Each cargo tank that has been out ofhazardous materials
transportation servicefor aperiod ofone year or more must be pressure tested in
accordance with § 180.407(g) prior to further use.

<<<PAGE 5>>>

The HMR do not define the phrase "hazardous materials transportation service," as used in
§ 180.407(b)(3). However, this Office generally agrees with your understanding that an MC 331
cargo tank that is not compliant with the requirements of the HMR would be considered out of
service and would require pressure testing in accordance with § 180.407(b)(3).
I hope this information is helpful. Please contact us if we can be of further assistance.
Sincerely,
T. Glenn Foster
Chief, Regulatory Review and Reinvention Branch
Standards and Rulemaking Division

## Provenance

- Official: Yes
- Source: <https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/docs/standards-rulemaking/hazmat/interpretations/73512/190125.pdf>
- Source ID: `phmsa`
- SHA-256: `2efd0412a67aeab41f489fa12074095dd76e9bfb2669d8d5db2267ff964b5576`
- Retrieved: 2026-08-20T00:59:31.977Z
- Exported: 2026-08-23T00:44:30.396Z
- Document slug: `phmsa-interpretation-19-0125`

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