# Ultramar Diamond Shamrock — Hazardous Materials Safety Interpretation

- **operation:** document
- **citation:** 99-0169
- **title:** Ultramar Diamond Shamrock — Hazardous Materials Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 1999-09-15
- **effective on:** Not available
- **summary:** 99-0169 response to Ultramar Diamond Shamrock concerning 172.504.
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- **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-99-0169
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/1999/990169.pdf
**body:**

<<<PAGE 1>>>

U.S. Department
of Transportation
Washington, D.C
Special Programs
Research and
Administration
SEP 1 5 1999
Mr. George Lewis
Ref. No. 99-0169
Measurement Manager
Ultramar Diamond Shamrock
HCRI Box 36
Sunray, TX 79086
Dear Mr. Lewis:
This is in response to your letter dated June 23, 1999, concerning the requirements for placarding a
vehicle, other than a cargo tank, with up to 60 gallons of flammable and combustible liquid in a non-
specification packaging under the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180).
Specifically, you ask whether placarding is based solely on the weight of the material, or the material
plus the packaging (including the hoses and piping).
As provided by § 172.504(a), a transport vehicle containing over 1,000 pounds aggregate gross weight
(packaging plus contents) of a hazardous material covered by Table 2 must be placarded. In this case,
the packaging is considered a non-bulk packaging (capacity of less than 119 gallons) and authorized
under the terms of an exemption. The exemption grants no relief from the placarding provisions of Pait
172, Subpart F; therefore, your meter provers containing flammable liquid and/or flammable gas must
be placarded.
I trust this answers your inquiry. If you have further questions, please do not hesitate to contact this
Office.
Sincerely,
Delmer F. Billings
Chief, Standards Development
Office of Hazardous Materials Standards
172,504
990169

<<<PAGE 2>>>

Nelson
8172.504
ULTRAMAR DIAMOND SHAMROCK
ORPO
R
T
99-0169
RSPA Office of Hazardous Materials Standards (DHM-10)
U.S. Department of Transportation
400 Seventh Street SW
Washington, DC
20590-0001
TO WHOM IT MAY CONCERN
Diamond Shamrock Refining and Marketing, a group company of Ultramar Diamond
Shamrock, employs Small Volume Provers (SVP) to accomplish measurement tasks. The
function of these units is to "prove" the accuracy of meters, thereby establishing a "meter
factor"
The SVPs are 15 gallon certified containers traceable to the National Institute of Standards
and Technologies (NIST). Typically they will contain diesel, gasoline, crude oil, or other
petroleum products associated to the industry in a guantity no greater than 60 gallons
including connecting hoses, associated piping, etc. The ANSI pressure ratings are 740 for
the two older units and 1480 for the two newer units. The prover's shipping weight is listed
as 4,350 pounds.
Three of these provers are mounted on Ford F450 trucks / utility beds, and one is mounted on
: a fifth wheel trailer towed by a ¾ ton pickup. The Ford F450 units, with provers permanently
mounted, weigh no greater than 16,000 pounds.
We are currently attempting to placard the units in accordance with Hazardous Materials
Regulations of the Department of Transportation because of confusion and uncertainty
concerning our responsibilities, as well as our desire to do the right thing. State Troopers
have been little help. We can't seem to get a consensus from them as to what we should do.
For example, the Colorado troopers tell us we don't need placards while the Texas troopers
Given our understanding of the regulations, we believe we do not need to apply placards to
these SVPs as set forth below:
• Under 172.504 (c)
"Except for bulk packagings and hazardous materials subject to 172.505 when
hazardous materials covered by table 2 of this section are transported by highway or
rail are not required on -

<<<PAGE 3>>>

(1) a transport vehicle or freight container which contains less than 1,001
pounds aggregate gross wight of hazardous materials covered by
Table 2 of paragraph (c) of the section;
Our contention is that while our container weighs over 4,000 pounds, we believe the
DOT is specifically addressing the weight of these products in table 2. Our container is
stainless steel which, of course, is NOT hazardous. An applicable example of this section
might be transport trucks which could be carrying 2,000 gallons of Diesel, 4,000 gallons of
gasoline, and 4,000 gallons of turbine fuel. We believe the aggregate weight of the
products is the intent of the regulation.
However, several troopers have insisted that we placard because the "aggregate gross
1,001 pounds. In this context, though, we believe the DOT is specifically concerned wit
veight inciudes the weight of the container, which we know exceeds the aforementioner
safety and environmental issues with respect to these hazardous materials. Other troopers
agree with us that the subject and purpose of the sentence is hazardous materials covered in
Table 2.
• According to the Definitions, we believe we qualify as "non bulk", exceeding neither the
119 gallons as a receptacle for liquid NOR the 1000 pounds as a receptacle for gas.
• 172.500 (b)(6) states that these placarding requirements do not apply to non bulk
containers.
Finally, in the Publisher's Note, one is led to believe the purpose of the placards is to inform
others to the danger of hazardous materials, but we continually get the "weight of the
container" issue.
It is our desire is to be conscientious corporate citizens, keenly aware of environmental
concerns, and lawful in our practices. Therefore, we respectfully request your written
instruction or advice you deem pertinent will be greatly appreciated.
concurrence that our vehicles as described are exempt from these laws. Any additional
Sincerely,
pone tena
Jeorge Lewi
Measurement Manager
Ultramar Diamond Shamrock
HCR1 Box 36
Sunray, Texas 79086
Daytime
(806) 935-1339
Email
george_lewis@udscorp.com
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