# Denton Police Department — Hazardous Materials Safety Interpretation

- **operation:** document
- **citation:** 14-0198
- **title:** Denton Police Department — Hazardous Materials Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 2015-03-04
- **effective on:** Not available
- **summary:** 14-0198 response to Denton Police Department concerning 171.2, 172.504.
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-interpretation-14-0198.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-interpretation-14-0198.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-14-0198
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/2015/140198.pdf
**body:**

<<<PAGE 1>>>

U.S. Department
of Transportation
1200 New Jersey Avenue, SE
Washington, D.C. 20590
ipeline and Hazardou
Administration
laterials Safel
MAR 0 4 2015
Mr. Wm. Scott Burson
Denton Police Department
601 E. Hickory St. Ste. E
Denton, TX 76205
Ref. No. 14-0198
Dear Mr. Burson:
This responds to your October 14, 2014 e-mail requesting clarification of the placarding
requirements of the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180).
Specifically, your questions relate to a flatbed trailer carrying mixed cargo of hazardous and
non-hazardous material (i.e., pipeline servicing equipment and supplies, including one
intermediate bulk container with hazardous material). Your questions have been
paraphrased and answered as follows:
Q1. If there are packages containing the communicated hazard on the transport
vehicle, may placards be affixed to pieces of cargo on the transport vehicle when the
pieces of cargo do not contain hazardous material?
A1. No. Under § 171.2(k), "[no] person may, by marking or otherwise, represent
that a hazardous material is present in a package, container, motor vehicle, rail car,
aircraft, or vessel if the hazardous material is not present." Even though there may
be obstructed views due to the manner of loading the transport vehicle, the
package(s) and transport vehicle must still be placarded in accordance with the
HMR.
Q2. Can placards be attached to pieces of cargo that are clearly not hazardous
materials, such as bundles of dressed lumber?
A2. No. Section 171.2(k) still applies even though it may be obvious that a piece of
cargo does not contain hazardous material. The placards cannot be affixed to the
non-hazardous cargo. Under § 172.504(a), placards must be affixed to each side and
each end of the transport vehicle itself, except as otherwise provided by the HMR.
I hope this answers your inquiry. If you need additional assistance, please contact this office
again.
Acting Chief, Standards Development Branch
Standards and Rulemaking Division

<<<PAGE 2>>>

Resto
172.504
Goodall, Shante CTR (PHMSA)
Placardens reguresent
From:
14-0198
Sent:
Ciccarone, Michael CTR (PHMSA)
Wednesday, October 15, 2014 10:11 AM
To:
Hazmat Interps
Subject:
Attachments:
FW: Interpretation Request - Prohibited Placarding, or not?
2014-10-14_152636.JPG; 2014-10-14_152723.JPG; 2014-10-14_152752.JPG; 2014-10-14_
152815.JPG; 2014-10-14_152835.JPG; 2014-10-14_152958.JPG
Shante and Alice,
Please submit this for a formal letter of interpretation.
Thanks,
Mike
From: Burson, William S [mailto: Scott.Burson@cityofdenton.com]
Sent: Tuesday, October 14, 2014 4:40 PM
To: PHMSA HM InfoCenter
Subject: Interpretation Request - Prohibited Placarding, or not?
PHMSA,
I am requesting an interpretation of the HMRs pertaining to hazardous materials in highway transport. The
HMR in question relates to placard requirements.
Scenario [Please refer to the six photos attached.]:
A company truck-tractor/semi-trailer is operated in interstate commerce. The flatbed trailer contains a mixed
load of pipeline servicing equipment and supplies. Aboard are five IBCs of which only one is a hazardous
material, the other four being non-regulated materials. The IBC containing the hazardous material [UN1993] is
displaying flammable liquid placards with the proper UN identification number displayed on the placard. The
placards on the IBC are on two opposing sides and are visible to observers standing to the left side and right
side of the flatbed semi-trailer. Per 172.504, the transport vehicle must also display flammable liquid placards
to the front and rear of the transport vehicle. [In this case the truck-tractor is not displaying placards and does
not factor into this interpretation request.]
The semi-trailer itself is not equipped with placard hangers or placard posts. The company decides to attach a
front facing flammable liquid placard upon an IBC that does not contain a hazardous material. The company
also attaches a rear facing flammable liquid placard on the end of a specialty toolbox that does not contain
any hazardous materials.
Question: May placards be affixed to pieces of cargo on a transport vehicle when the pieces of cargo do not
contain hazardous materials, even if the intent of the carrier is to enhance the visibility of the placards on the
ends of a transport vehicle? And, what if the end placards are attached to pieces of cargo that clearly are not
hazardous materials such as bundles of dressed lumber or coils of steel?
The pertinent regulations in this matter appear to be the following three:
1

<<<PAGE 3>>>

171.2 General requirements
(k), No person may, by marking or otherwise, represent that a hazardous material is present in a
package, container, motor vehicle, rail car, aircraft, or vessel if the hazardous material is not present.
172.502 Prohibited and permissive placarding
(a) Except as provided in paragraph (b) of this section, no person may affix or display on a
packaging, freight container, unit load device, motor vehicle or rail car-
(1) Any placard described in this subpart unless—
(i) The material being offered or transported is a hazardous material;
(ii) The placard represents a hazard of the hazardous material being offered or
transported; and
(iii) Any placarding conforms to the requirements of this subpart.
172.516 Visibility and display of placards
(a), 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.
The company interpretation I heard employed was that a higher placard is a more visible placard. There was a
claim that a placard placed high on a piece of non-regulated cargo is permissible because of the last sentence
of 172.516(a). [See the paragraph above.]
There was a further claim that since a hazardous material is being transported on the vehicle, and the
placard does represent the hazardous material being transport on the vehicle, and the placards are to
specification, then the placarding of non-regulated cargo is compliant with 171.2(k) and 172.502(a)(1) and not
prohibited by 172.516.
Finally, on this side of the issue, there was a position that no specific placarding prohibition exists
worded in the same specific manner as 172.401 when prohibited labeling is considered.
172.401 Prohibited labeling.
(a) Except as otherwise provided in this section, no person may offer for transportation and no
carrier may transport a package bearing a label specified in this subpart unless:
(1) The package contains a material that is a hazardous material, and
(2) The label represents a hazard of the hazardous material in the package.
(b) No person may offer for transportation and no carrier may transport a package bearing any
marking or label which by its color, design, or shape could be confused with or conflict with a label
prescribed by this part.
On the other hand, there is a concern that the placarding as depicted in the photos can be deemed as a
confusing hazardous materials communication. The concern is that all of the packages bearing placards on the
semi-trailer may be presumed to contain hazardous materials and that such a presumption could adversely
affect or delay a course of response in a crisis. To avoid such confusion, the placards on the ends of the
transport vehicle should be affixed to the transport vehicle itself, not to pieces of cargo on the transport
vehicle containing unregulated materials.
Can you please clarify?
Thank you for your consideration in this matter.
2

<<<PAGE 4>>>

Respectfully,
Wm. Scott Burson
Crash Investigator/Commercial Motor Vehicle Roadside Inspector
Denton Police Department
601 E. Hickory St. Ste. E
Denton, Texas 76205
Main: 940/349-8181
Office: 940/349-7851
- **truncated:** false
- **body characters:** 7972
