# Jeffrey Cline — Hazardous Materials Safety Interpretation

**Citation:** 18-0109  
**Type / status:** guidance / guidance  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2019-03-12

18-0109 concerning 173.24, 173.241, 173.32.

## Document text

<<<PAGE 1>>>

U.S. Department
of Transportation
Pipeline and Hazardous
Material• Safety
Admlnletratlon
1200 New Jersey Avenue, SE
Washington, DC 20590
MAR 1 2 2019
Jeffrey Cline
Director of Strategic Accounts
9216 Autumn Court
Mobile, AL 36695
Reference No. 18-0109
Dear Mr. Cline:
This letter is in response to your July 17, 2018, email requesting clarification of the Hazardous
Materials Regulations (HMR; 49 CFR Parts 171-180) applicable to non-DOT specification
portable tanks. You state your company wants to construct and transport a roll-off/roll-on
portable tank conforming to Special Provision T3 filled with "UN3190, Self-heating solid,
inorganic, n.o.s., 4.2, PG II." You further explain that while the hazardous material will contain
some moisture, there will be no free-flowing liquid. Specifically, you ask if any additional
requirements wo. uld apply to a non-DOT specification packaging containing "UN3190" if the
portable tank is built with the proper compatibility, closures, venting, and conforms to the
requirements of § 173 .241.
The answer is yes. Use of the packaging is also subject to the requirements of Subparts A and B
of Part 173, which include general packaging requirements in§ 173.24, additional general
requirements for bulk packagings in § 173 .24b, and any applicable requirements for the use of a
portable tank in§ 173.32.
You are free to voluntarily construct your non-DOT specification portable tank to the standards
in Special Provision T3. While such a portable tank would be an authorized packaging for the
material in accordance with§ 173.241, it cannot be represented as a DOT specification
packaging or as complying with any DOT standard or requirement.
I hope this inf orniation is helpful. Please contact us if we can be of further assistance.
s~A7~
~~~n/re:
Chief, Standards Development Branch
Standards and Rulemaking Division

<<<PAGE 2>>>

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/8-010,
Dodd, Alice (OST)
From:
Sent:
To:
Subject:
INFOCNTR (PHMSA)
Wednesday, July 18, 2018 4:35 PM
Hazmat Interps
FW: Request for Interpretation
Hi lkeya,
Below is a request for a letter of interpretation. Mr. Cline spoke with Jonathon regarding his request.
Thank you,
Jodi
From: Jeffrey Cline [mailto :jcline@rainforrent.com]
Sent: Tuesday, July 17, 2018 4:21 PM
To: INFOCNTR (PHMSA) <INFOCNTR.INFOCNTR@dot.gov>
Subject: Request for Interpretation
To Whom It May Concern,
I am writing you with regards to the packaging requirements for spent catalyst (UN3190, SELF-HEATING, SOLID
INORGANIC, N.O.S., Class 4.2, Packing Group II). Bulk Packaging instructions per 49 CFR 173.24 (c) indicates that "non-
DOT Specification portable tanks suitable for transport of liquids are authorized."
My organization seeks to construct a portable roll-off/roll-on (rectangular) tank to transport this Hazard Class 4.2 PG II
material conforming to Special Provision T3. This material will contain some moisture but will have no free liquids.
Question:
Assuming such portable tank suitable for liquids (in a roll-off style) is built with the proper compatibility, closures,
venting, and conforms with the requirements of 49 CFR 173.24, are there any other regulations that would apply to such
non-DOT specification packaging for a UN3190 HazMat?
Best Regards,
Jeff Cline
Jeff Cline
9216 Autumn Ct.
Mobile, Al. 36695
Ml (11,u,e
Director of Strategic Accounts
Cell: (251) 379-7559
jcli1 1c®rai11forrc11t .con1
1

## Provenance

- Official: Yes
- Source: <https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/docs/standards-rulemaking/hazmat/interpretations/70801/180109.pdf>
- Source ID: `phmsa`
- SHA-256: `927ecf9749b5ba307738dc2e3cabe218fc5a2936cd7b1f5c47f0098e51dc3f88`
- Retrieved: 2026-08-20T00:59:31.977Z
- Exported: 2026-08-22T17:21:17.743Z
- Document slug: `phmsa-interpretation-18-0109`

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