# Mr. Bob Thompson — Hazardous Materials Safety Interpretation

- **operation:** document
- **citation:** 05-0012
- **title:** Mr. Bob Thompson — Hazardous Materials Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 2005-02-17
- **effective on:** Not available
- **summary:** 05-0012 response to Mr. Bob Thompson concerning 172.328, 172.334, 172.519.
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- **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-05-0012
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/2005/050012.pdf
**body:**

<<<PAGE 1>>>

of Transportation
J.S. Department
400 Seventh St., S.W.
Washington, D.C. 20590
Research and
Admint fratioams
FEB 17 2005
Mr. Bob Thompson
4200 Cairo Road |
United Propane Gas Companies, Inc.
Ref No.: 05-0012
Paducah, Kentucky 42002-2450
Dear Mr. Thompson:
This responds to your January 18, 2005 letter and subsequent telephone conversation with a
member of my staff requesting clarification of the Hazardous Materials Regulations (HMR;
49 CFR Parts 171-180). Specifically, you ask if the proper shipping name must be marked
on the outside of a cargo tank in addition to the required placards and identification number
markings for ammonia anhydrous and propane.
The answer is yes. A cargo tank containing a Class 2 material must be marked in
accordance with Part 172, Subpart D and placarded in accordance with Part 172, Subpart F.
A cargo tank containing a Class 2 material must be marked with the proper shipping name
specified in the Hazardous Materials Table (HMT; § 172.101), or an appropriate common
name for the material (e.g., "Refrigerant Gas") in accordance with § 172.328. However,
§ 172.328 provides an exception from the requirement to mark the proper shipping name or
common name on certain nurse tanks that are marked in accordance with § 173.315(m).
I hope this information is helpful. Please contact us if you require additional assistance.
Sincerely,
/ Chief, Standards Development
Office of Hazardous Materials Standards
172.328
172.334
172.519
050012

<<<PAGE 2>>>

kicheblaub
$172,334
$172.519
Placarding
05-0012
QUESTiONS ABOUT PLACARDiNA FOR PROPANE AND ANHydROUS AmMONIA
FOR PROPANE iS iT ALRiGHT To hAVE jusT N.N. 1075+ FLAMMABLE
GAs oN ALL 4sidES
4.N.1075)
FLAMMABLE
GAS
FoA ANHyOROuS AmmOniA iS iT ALAigHT To HAVE jUST N.N.
1005. NON-FLAMMABLE GAS ALL HSiDES AND INHALATION
HAZARA ON BOTH SIDES.
/u.N.1005)
NON-FLAMMABLE GAS
INHALATION HAZARD
FRom: BoB Thompson
PHonE: 270-442-5557 EXT 25
FAx: 270-444-6380
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- **body characters:** 1947