# HazMat Resources, Inc. — Hazardous Materials Safety Interpretation

- **operation:** document
- **citation:** 08-0098
- **title:** HazMat Resources, Inc. — Hazardous Materials Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 2008-08-05
- **effective on:** Not available
- **summary:** 08-0098 response to HazMat Resources, Inc. concerning 172.504, 172.516.
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-interpretation-08-0098.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-interpretation-08-0098.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-08-0098
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/2008/080098.pdf
**body:**

<<<PAGE 1>>>

U.S. Department
of Transportation
Pipeline and Hazardous
Materials Safety
Administration
1200 New Jersey Ave.. S.E.
Washington. DC 20590
Vice President, Business Development
HazMat Resources, Inc.
1 0 1 04 Creedmoor Road
Raleigh, NC 276 15
Ref. No. 08-0098
Dear Mr. Shelton:
This is in response to your letter dated April 17,2008, requesting clarification of $ 4 172.504
and 172.51 6 of the Hazardous Materials Regulations (HMR; 49 CFR Parts 171 -1 80).
Specifically, you ask whether the display of a placard in a placard holder mounted clear of
obstructions on the fender of a cargo tank motor vehicle facing the front or rear of the
transport vehicle satisfies the requirements of $9 172.504 and 172.516. You reference
previous letters of clarification dated August 6, 2004 from John Gale to Charles Phillips (Ref.
No. 04-0 164) and May 6, 1999 from Delmer Billings to Bruce Bugg (Ref. No. 99-0048) and
provide several photos. You indicate that the letters conflict with one another.
When placarding is required by 5 172.504(a) of the HMR, a transport vehicle must be
placarded on each side and each end. The HMR require a placard to be clearly visible from
the direction it faces, except fiom the direction of another transport vehicle to which it is
coupled (see 5 172.5 16(a)). For purposes of the HMR, a "transport vehicle" is a cargo-
carrying vehicle, such as a van, tractor, trailer, semi-trailer, tank car, or rail car used for the
transportation of cargo by any mode. Each cargo-carrying body is a separate transport
vehicle. In accordance with 4 171.8, a transport vehicle with no intermediate form of
containment meets the definition of a bulk packaging.
We have reviewed the letters and the photos you submitted. The photos you provided are of
placards mounted on the front or rear end of semi-trailers used in a truck-tractorltrailer
configuration. The letters you reference were provided by this office in response to very
specific.placarding questions. Letter 04-0164 addresses the display of placards on a single
transport vehicle (e.g., straight truck) as follows:
"Each placard on a motor vehicle must be visiblefrom the
direction it faces, except from the direction of "another
transport vehicle" to which the motor vehicle is coupled
(1 72.516). In this case, the truck-tractor is not "another
transport vehicle," because it is part of a single transport

<<<PAGE 2>>>

vehicle. Therefore, the obscuredplacard does not meet the
visibility requirement in j 1 72.51 6. A placard placed on the
front of the truck-tractor in accordance with j 172.516p)
would satisfj, the visibility requirement of j 172.51 6(a). "
Letter 99-0048 addresses two or more transport vehicles used in combination (e.g., truck-
tractodsemi trailer) as follows:
"Section 172.504 states that a transport vehicle must be
placarded on each side and each end. A placard located on the
tank fender that 'Ifaces" the front of the tank is not "on" the
front end, and therefore, the placard does not comply with
1 72.504. Additionally, the location of the placard does not
satisfj, the visibility requirements of 172.51 6(a). "
The letters do not conflict, as you suggest. However, though the intent of letter 99-0048 was
to prohibit front and rear placards that are not actually on the end of the transport vehicle, the
language in the letter actually implies that the front and rear placards cannot be on the fenders
even if they are on the end of the transport vehicle. Placards that are on the end of the bulk
package, which includes a transport vehicle that has no intermediate form of containment,
may be used to meet the requirements in §$ 172.504(a) and 172.516(a).
Therefore, this letter clarifies that in the truck-tractorltrailer configuration that you describe, a
forward or rear facing placard, mounted so that its plane is substantially perpendicular to the
longitudinal axis of the vehicle, may be on the fender as long as it is visibly mounted on the
end of the transport vehicle. You should also note, when the front of a transport vehicle is
blocked by another transport vehicle (e.g., the truck tractor blocks the front of the semi-
trailer) it is our opinion that mounting a placard on the front of the truck-tractor in accordance
with 172.5 16(b) is the most effective means of satisfying the visibility requirements in
172.5 16(a).
I hope this satisfies your inquiry. If we can be of further assistance, please contact us.
Sincerely,
Director
Office of Hazardous Materials Standards

<<<PAGE 3>>>

Page 1 of 3
Drakeford, Carolyn cPHMSA> 0 172 316.
From: Mazzullo, Ed <PHMSA>
Sent: Thursday, April 17, 2008 3:24 PM
To: Drakeford, Carolyn <PHMSA>
Cc: Gale, John <PHMSA>; Billings, Delmer <PHMSA>; Gorsky, Susan <PHMSA>
Subject: FW: Display of Placards on the Fenders of Cargo Tanks
Attachments: Texas DPS placard visibility.doc; 172.516 Visibility.pdf; Incoming and outgoing inter May 6,
1999.pdf
Carolyn
Please assign for response and let me know who gets this. Thanks.
From: Danny Shelton [mailto:dgshelton@nc.rr.com]
Sent: Thursday, April 17, 2008 3:02 PM
To: Fritz Mead
Cc: John Conley; Mazzullo, Ed <PHMSA>; Simmons, James <FMCSA>
Subject: Display of Placards on the Fenders of Cargo Tanks
Please find attached the information that was transmitted on October
26, 2004 regarding the requirement that the placard must be attached
to the cargo tank. The regulations do not s~lpport this requirement
only that the placard be attached to the transport vehicle and the
fender is certainly part of the transport vehicle.
Here is what needs to happen. Both Highway Transport and Usher
Transport need to challenge the violation in Data Ques. At the same
time I need copies of the roadside inspection reports and I will
communicate this inforn~ation to Mr. TOIII Marlow, Division
Administrator for the Georgia Division and provide them the
opportunity to update Georgia's training c~lrriculum regarding the
transportation of hazardous materials in bulk packages.
Ed, I have attached a copy of the 1999 interpretation and an August
2004 interpretation for your reference. It appears these
interpretations conflict with one another. Ed, 1 was not able to find
an interpretation that rescinded the 1999 interpretation so please

<<<PAGE 4>>>

Page 2 of 3
consider this e-mail as my official request for an interpretation
regarding the visibility and display of placards on. cargo tank motor
vehicles and specifically if the display of a placard in a placard holder
clear of all obstructions mounted on the fender. of the cargo tank
motor vehicle facing in the required direction full fills the
requirements of the regulation.
From: Shelton, Danny
Sent: Tuesday, October 26, 2004 12:18 PM
To: 'John Conley'; 'Clifford Harvison'
Cc: Delorenzo, Joseph; Evans, Joseph; Simmons, James; 'Steve Keppler'; Gorsky, Susan <RSPA>; 'Jeff '
Subject: FW: Display of Placards on the Fenders of Cargo Tanks
FYI
From: Rogers, Mark [mailto:Mark.Rogers@txdps.state.b.us]
Sent: Tuesday, October 26, 2004 11:50 AM
To: Sullivan, Steven; Albus, Gary; Cantu, Lambert; Cummings, Tom; Doyle, David; Ladd, Billy; Palmer, David;
Rodriguez 111, Jose; Salinas, Mario; Spencer, James; St. John, Dale; Stafford, Glen; Larocque, John; Longfellow,
Charles; Moore, Dana; Sellers, Ken
Cc: Baumgartner, Rodney; Shelton, Danny
Subject: Display of Placards on the Fenders of Cargo Tanks
Gentlemen:
During the recent series of in-service classes that all CVE Service personnel have attended, the
topic of how to properly display a placard on a cargo tank was discussed during hazardous
materials re-certification. Several interpretations from RSPA were distributed that specifically
indicated that the display of a placard on the fender of a cargo tank was not in compliance
with 49 CFR 172.504 and 172.516(a).
Attached is a request from the FMCSA asking that the DPS discontinue enforcement of the
above described interpretations. FMCSA is working with RSPA to revise and clarify the above
interpretations.
In the interim time, while these interpretations are being reviewed by RSPA, please
discontinue enforcement, both arrest citations and warnings, for placards that are simply
mounted on the fenders of a cargo tank, but remain visible. Enforcement of the provisions of
49 CFR 172.516(a) - Visibility of Placards - may continue, but or~ly if the placard is mounted on
the fender in such a position that it is truly not visible from the direction it is facing at &I
angles of visibility. Photographs that depict what is acceptable for the display of placards on
the fenders of a cargo tank are forthcoming.
Please advise all DPS, city, and county personnel involved in our hazardous materials
enforcement program of this policy change.

<<<PAGE 5>>>

Mark Rogers, Major
Texas Highway Patrol Division - Chiefs Staff
Commercial Vehicle Enforcement Service
Page 3 of 3

<<<PAGE 6>>>

11760,
STOP:
ansport,
Usher
700
03/20/2008

<<<PAGE 7>>>

03/20/2008

<<<PAGE 8>>>

8085
6-03°
6 2-04 LUC
VIKT
1267
as's

<<<PAGE 9>>>

This will confirm our conversation on Tuesday, October 26,2004 regarding the display
of placards on a motor vehicle. The requirement for the visibility and display of placards
is located in 49 CFR 8 172.5 16 and paragraph (a) states as follows: Each placard on a
motor vehicle and each placard on a rail car must be clearly visible from the direction it
faces, except from the direction of another transport vehicle or rail car to which the motor
vehicle or rail car is coupled. This requirement may be met by the placards displayed on
the freight containers or portable tanks loaded on a motor vehicle or rail car. Also
8 172.504(a) states that each bulk packaging, freight container, unit load device, transport
vehicle or rail car containing any quantity of a hazardous material must be placarded on
each side and each end with the type of placards specified in Table 1 and 2 of this section
and in accordance with other placarding requirements of this subpart, including the
specifications for the placards named in the tables and described in detail in 8172.5 19
through 8172.558.
Additionally 8 171.8 defines a motor vehicle as a vehicle, machine, tractor, trailer or semi
trailer, or any combination thereof, propelled or drawn by mechanical power and used
upon the highways in the transportation of passengers or property. It does not include a
vehicle, locomotive, or car operated exclusively on a rail or rails, or a trolley bus operated
by electric power derived from a fixed overhead wire, furnishing local passenger
transportation similar to street-railway service. Also 8 171.8 goes on to define a
transport vehicle as a cargo+arrying vehicle such as an automobile, van, tractor, truck,
semi trailer, tank car or rail car used for the transportation of cargo by any mode. Each
cargo~arrying body (trailer, rail car, etc.) is a separate transport vehicle.
It is the position of the Federal Motor Carrier Safety Administration (FMCSA) that a
motor vehicle and a transport vehicle are one and the same and simply because a placard
is placed on the fender of a motor vehicle but is visible from the direction it faces, is not
in violation of either 172.5 16 or 172.504. We are requesting that Federal and State
commercial motor vehicle inspectors not cite this violation when the circumstances
described in this document are present. We are working with the Research and Special
Programs Administration (RSPA) to rescind the interpretation dated Mary 6, 1999 which
states in part that a placard located on the tank fender that "faces" the front of the tanks is
not "on" the front end, and therefore, the placard does not comply with 172.504 and that
the location of the placard does not satisfi the visibility requirements of 172.5 16(a).
Our position is that RSPA's interpretation needs revisited and we will be working with
RSPA to revise and clarify that interpretation.
I hope this information provides

<<<PAGE 10>>>

U.S.Departrnent
of Transportation
Research and
Special Pmgrams Administration
MAY 6 1999
Captain Bruce Bugg
Hazardous Materials Specialist
Georgia Public Service Commission
47 Trinity Avenue, S W
Atlanta, GA 30354-5701
. .
Dear Captain Bugg:
This is in response to your letter of F
1 72.5 1 6 under the Hazardous Materi
ask whether mounting the fiont or re the front of the cargo tank to as much as 24,inches h 56 172.504 and/or 172.516.
, .
The answer is no. Section 172.504
each end. A placard located on the end, and therefore, the placard does
placard does not satisfy the visibility requ
I. hope this answers your inquiry. If we c
l lllll llllll l l Ill
990048 , .
!
ere from even with
the requirements of
s not "on" the fiont

<<<PAGE 11>>>

. . . . . . . . ..:.
....... ...
COMMISSIONERS:
COMMISSIONERS:
ROBERT (BOBBY) BAKER
ROBERT (BOBBY) BAKER
808 DURDEN
OEBORAH K. FLANNAGAN
808 DURBEN DEBORAH K. FLANNAGAN
LAUREN 'BUBBA' MCOONALD.
LAUREN 'BUBBA' MCOONALD. JR EXECUTIVE DIRECTOR
EXECUTIVE DIRECTOR
STAN WlSE
STAN WlSE
CAPT. BRUCE BUGG
HAUIRWUS MATERIALS SPECIALIST
(404)559-6627
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. . . . . .
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Mr. Edward Mazzullo Mr. Edward Mazzullo Office of Hazardous Materials Standards
Office of Hazardous Materials Standards
US DOT - RSPA - DHM-10 US DOT - RSPA - DHM-10
. . . .
400 Seventh Street, SW
400 Seventh Street, SW
Washington, DC 20590-000 1
Washington, DC 20590-000 1 ,
:, , . ,
Dear S u
Dear S u .... . ,.
. ,
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This letter is to request a clarification of the visibility and display cargo tank motor
vehicles. As you know, 49 CFR §172.504(a) requires plaeardshe
addition, 49 CFR 5 172.5 16 sets down
addition, 49 CFR 5 172.5 16 sets down certain other ~isib$it)!,r~ui~~.~~~.~..;-., . .
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Our officers frequently Blcaunter cargo tanks with plac+ds &td .',I.: 'C .........
as .. &p~cted:$th& ...rl; ,. ....., ~ , c ~ . ~ . ~ ! ~ ~ ~ , ~ ~ &~in~~;b~lhg;;~>e h n t (and
sometimes rear) placards are mounied
sometimes rear) placards are mounted on the fenders of the tanks, anywh:k&;from,:even wih the,@rif.;o[$e cargo tank, to as
much as 24 inches fiom the end of the tank. : . . . .
much as 24 inches fiom the end of the tank. :
. .
; .
t.;::.
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We have treated this type of placem
4 172.5 16(c)(2). We feel this is parti
mounted, since three of the four pl
the regulations.
the regulations.
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