# Amanda White — Hazardous Materials Safety Interpretation

**Citation:** 21-0107  
**Type / status:** guidance / guidance  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2022-02-03

21-0107 concerning 171.2, 171.8, 178.704.

## Document text

<<<PAGE 1>>>

U.S. Department
of Transportation
Pipeline and Hazardous
Materials Safety
Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
February 3, 2022
Ms. Amanda White
1125 Harvey Road
Auburn, WA 98002
Reference No. 21-0107
Dear Ms. White:
This letter is in response to your November 12, 2021, email requesting clarification of the
Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180) applicable to an enforcement
action regarding carrier responsibilities and intermediate bulk container (“IBC”) specifications.
Specifically, you state that one of your company’s drivers was cited for a violation of
§ 178.704(e), which states that for each IBC containing a liquid, a secondary means of sealing
the discharge aperture must also be provided, e.g., by a blank flange or equivalent device. You
state that during the COVID-19 public health emergency, your company’s drivers have not been
allowed inside shippers’ warehouses, and that your drivers take possession of the shipments after
they have been packaged and loaded into sealed trailers. You ask—given this scenario—whether
the carrier, the shipper, or both entities are in violation of the HMR requirements.
It is the opinion of this Office that—barring additional information pertinent to the scenario you
describe—the person preparing the hazardous materials packages for transportation and loading
those packages in the motor vehicle is in violation of the general IBC requirements specified in
§ 178.704(e) (i.e., in this instance, the shipper).
As specified in § 171.2(f), no person may transport hazardous materials unless they are
transported in accordance with the HMR. In the absence of participating in the loading operation
or having access to the loaded trailer, it is assumed that the carrier would rely on the shipping
paper and the accompanying certification that the packages are in proper condition for
transportation (i.e., using a secondary means of sealing the discharge aperture on the IBCs).
Specifically, the carrier may rely on information provided by the offeror of the hazardous
materials unless the carrier knows—or a reasonable person acting in the circumstances and
exercising reasonable care would have known—that the information provided by the offeror is
incorrect. (See § 171.8 for the definition of a “person who offers or offeror.”) Additionally, the
carrier may not ignore readily apparent information that would indicate the packages are not
properly sealed.

<<<PAGE 2>>>

Finally, it should be noted that whenever a hazardous material has not been shipped in
compliance with the HMR, the Department of Transportation will attempt to bring an
enforcement proceeding against the person who first caused the transportation of the
noncomplying shipment. See the formal interpretation of carrier responsibility when
accepting hazardous material for transportation in commerce (June 4, 1998; 63 FR 30411)1
.
I hope this information is helpful. Please contact us if we can be of further assistance.
Sincerely,
T. Glenn Foster
Chief, Regulatory Review and Reinvention Branch
Standards and Rulemaking Division
1 See formal interpretation at: https://www.govinfo.gov/content/pkg/FR-1998-06-04/pdf/98-14561.pdf

<<<PAGE 3>>>

Larson
From: Raynor, T"Mia (PHMSA)
To: Hazmat Interps
Subject: FW: Interpretation Response
Date: Tuesday, November 16, 2021 5:03:36 PM
Attachments: image002.png
21-0107
Hello,
Please see below.
Thanks,
T’Mia Raynor
Webmaster, Office of the PHMSA CIO
US Department of Transportation
Pipeline and Hazardous Materials Safety Administration
1200 New Jersey Ave. SE, Washington, D.C., 20590
Office: 202.366.9818 ◊ Mobile: 202.580.9447
PHMSA Home | LinkedIn | Twitter | HAZMAT | OPS
From: Amanda white <amandawhiteoc@gmail.com>
Sent: Friday, November 12, 2021 5:02 PM
To: PHMSA Website Manager <PHMSAWebsiteManager@dot.gov>
Subject: Interpretation Response
CAUTION: This email originated from outside of the Department of Transportation (DOT). Do not click on links or
open attachments unless you recognize the sender and know the content is safe.
Hello ,
I need an interpretation regarding 178.704(e) IBC bottom discharge valve protection violation.
In the particular case where I am requesting interpretation, the driver got a violation ,
namely , Secondary means of sealing discharge aperture (blank flange or similar device)
not provided. So as a carrier that transports Hazardous Materials , is the driver
responsible for this , take into account that in the context of the pandemic COVID-19 , warehouses
don't allow drivers there , allowing the driver to take the cargo after sealing it.
Is it fair that a motor carrier company that transports hazardous materials is accused of his alleged
violation ?
Thank you
Irina

## Provenance

- Official: Yes
- Source: <https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/docs/standards-rulemaking/hazmat/interpretations/76266/210107.pdf>
- Source ID: `phmsa`
- SHA-256: `9eab52a0e2e90bf90e52063e9cfc1a7a246210f52e522a55877061711d770e88`
- Retrieved: 2026-08-20T00:59:31.977Z
- Exported: 2026-08-23T07:47:58.867Z
- Document slug: `phmsa-interpretation-21-0107`

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