# PCS Sales (USA), Inc. — Hazardous Materials Safety Interpretation

**Citation:** 14-0164  
**Type / status:** guidance / guidance  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2015-04-13

14-0164 response to PCS Sales (USA), Inc. concerning 171.2, 180.407, 180.411.

## Document text

<<<PAGE 1>>>

U.S. Department
1200 New Jersey Avenue SE
of Transportation
Washington DC 20590
Safety Administration
Pipeline and Hazardous Materials
MAR 1 3 2015
Mr. Tracey Smith
Manager, Regulatory Compliance
PCS Sales (USA), Inc.
1101 Skokie Blvd., Suite 400
Northbrook, IL 60062
Ref. No. 14-0164
Dear Mr. Smith:
This is in response to your September 3, 2014 email regarding insulated cargo tank
requirements in the Hazardous Materials Regulations (HMR; 49 CFR parts 171-180).
Specifically, you are concerned whether the conditions requiring test and inspection of a
specification cargo tank under § 180.407(b)(1) and (2) apply to the jacket on an insulated
and answered as follows:
cargo tank. Your questions regarding the jacket of an insulated cargo tank are paraphrased
Q1. Do the criteria for dents under § 180.411 apply to the jacket of an insulated
cargo tank?
A1. No, the acceptable results of tests and inspections found in §180.411 do not
apply to the jacket of an insulated cargo tank. However, damage to the jacket may
indicate that there is damage to the cargo tank, and additional inspection should
occur.
Q2. If the insulated cargo tank's jacket is not weather tight because of a tear, gouge,
or dent in the jacket, is it still acceptable to load the cargo tank?
A2. The answer is no. As stated in § 180.407(b), a cargo tank must be tested and
inspected prior to further use if there is evidence of an unsafe condition, specifically,
if it shows evidence of dents, cuts, gouges, corroded or abraded areas, leakage, or
any other condition that might render it unsafe for hazardous materials service. We
consider a tear, gouge, or dent in the insulating jacket as evidence of a condition that
might render it unsafe for hazardous materials service. Thus, a cargo tank fitted with
an insulating jacket that has evidence of a tear, gouge, or dent must be tested and
inspected prior to further use.

<<<PAGE 2>>>

Furthermore, the jacket of an insulated cargo tank must satisfy the thermal insulation
requirements of the DOT specification. Damage to the jacket may indicate that the
Jacket is no longer satistactorily performing this function and must be restored to its
intended condition according to its specification.
Q3. Prior to loading, who is responsible for inspecting the cargo tank for dents and
to ensure the package is acceptable; the loading facility or the carrier?
A3. Section 171.2 (i) states that no person may certify that a hazardous material is
offered for transportation in commerce in accordance with the requirements of the
HMR unless the hazardous material is properly classed, described, packaged,
marked, labeled, and in condition for shipment as required or authorized by
applicable requirements of this subchapter or an exemption or special permit,
approval, or registration issued under this subchapter or subchapter A of this chapter.
The qualification and maintenance requirements for a DOT specification cargo tank
are applicable to any person responsible for the continuing qualification,
maintenance or periodic testing of a cargo tank. Each person who offers a package
containing a hazardous material for transportation in commerce in accordance with
the HMR must assure that the package remains in condition for shipment until it is in
the possession of the carrier.
I trust this information is helpful. If you have further questions, please do not hesitate to
contact this office.
Sincerely,
That Thi
Acting Chief, Standard Development
Standards and Rulemaking Division

<<<PAGE 3>>>

Broussard
180.407(6)
Goodall, Shante CTR (PHMSA)
Cargo tanks recumenti
From:
Sent:
Ciccarone, Michael CTR (PHMSA)
14-0164
To:
Wednesday, September 03, 2014 4:16 PM
Subject:
Hazmat Interps
FW: Request Written Letter of Interpretation 180.407(b)182
Shante and Alice,
Please submit this for a formal letter of interpretation. Mr. Smith spoke to Chris Ludwa in the HMIC.
Thanks,
Mike
From: IGSmith@potashcorp.com [mailto: TGSmith@potashcorp.com]
Sent: Wednesday, September 03, 2014 3:20 PM
To: PHMSA HM InfoCenter
Subject: Request Written Letter of Interpretation 180.407(b)182
I am formally requesting a written letter of interpretation for the following question in reference to 180-407(b)1&2.
dent which exceeds the criteria outlined in 180.411? Since the tank itself can not be seen from a visual inspection from
Q1 Does the criteria for dents apply to a cargo tank's exterior jacket of a insulated cargo tank? Meaning if the tank has a
the ground by a loader?
Q2 If they Jacket of the insulated cargo tank is not weather tight because of tear or gouge/dent in the jack is it still
acceptable to load?
Q3 Who is responsible for inspecting the cargo tank prior to loading for dents to ensure the package is accepable? The
loading facility or the carrier?
Mr. Tracey G. Smith
PCS Sales (USA), Inc.
Phone#: 847-849-4358
Manager, Regulatory Compliance
Office Hours are 7:30am - 4:00pm Central Time
Mobile#: 847-208-2727
Fax: 847-849-4692
Email: tgsmith@potashcorp.com
This message may contain confidential Information. If you are not the designated recipient, please notify the sender
immediately, and delete the original and any copies. Any use of this message without approval by PCS is prohibited.
1

## Provenance

- Official: Yes
- Source: <https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/2015/140164.pdf>
- Source ID: `phmsa`
- SHA-256: `1e500bfe46759e9f9093afe728d3d90be11e2c1a6571e50701e8a37be9c33f95`
- Retrieved: 2026-08-20T00:59:31.977Z
- Exported: 2026-08-22T03:44:31.556Z
- Document slug: `phmsa-interpretation-14-0164`

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