# Council on Safe Transportation of Hazardous Articles — Hazardous Materials Safety Interpretation

**Citation:** 24-0041  
**Type / status:** guidance / guidance  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2024-10-01

24-0041 response to Council on Safe Transportation of Hazardous Articles concerning 171.2, 172.102.

## Document text

<<<PAGE 1>>>

U.S. Department
of Transportation
Pipeline and Hazardous
Materials Safety
Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
October 1, 2024
Frank Lopez
Regulatory Compliance Specialist
Council on Safe Transportation of Hazardous Articles
10 Hunter Brook Lane
Queensbury, NY 12804
Reference No. 24-0041
Dear Mr. Lopez:
This letter is in response to your May 28, 2024, letter requesting clarification of the Hazardous
Materials Regulations (HMR; 49 CFR Parts 171-180) applicable to determining responsibility
for compliance with lithium ion cell and battery state of charge (SOC) requirements—see
§ 172.102 Special Provision A100. You ask for confirmation that subsequent offerors of lithium
ion cells and batteries may generally rely on information from the initial offeror that the SOC
does not exceed 30 percent of the cell or battery’s rated capacity.
The answer is yes. Section 171.2(b) states that “…each offeror may rely on information provided
by another offeror, unless that offeror knows or, a reasonable person, acting in the circumstances
and exercising reasonable care, would have knowledge that the information provided by the
other offeror is incorrect.” Additionally, § 171.2(f) would apply to the scenario you provided,
because it states that “carriers that transport hazardous materials may rely on information
provided by the offeror of the hazardous material or a prior carriers, unless the carrier knows or,
a reasonable person, acting in the circumstances and exercising reasonable care, would have
knowledge that the information provided by the offeror or prior carrier is incorrect.” Therefore,
subsequent offerors of lithium ion cells and batteries may rely on information provided by
another offeror—or a previous carrier—unless it is known to the offeror or a reasonable person
acting in the circumstances and exercising reasonable care that the other offeror’s or carrier’s
information is incorrect.

<<<PAGE 2>>>

Finally, please note 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[1] of carrier responsibility when accepting hazardous material for
transportation in commerce (June 4, 1998; 63 FR 30411).
I hope this information is helpful. Please contact us if we can be of further assistance.
Sincerely,
Alexander Wolcott
Acting Chief, Regulatory Review and Reinvention Branch
Standards and Rulemaking Division

<<<PAGE 3>>>

Vore
24-0041
From: INFOCNTR (PHMSA)
To: Hazmat Interps
Subject: FW: COSTHA Letter of Interpretation Request regarding §171.2(b) and the requirement for lithium ion batteries to
be at a state of charge of 30% or less
Date: Tuesday, June 4, 2024 10:12:51 AM
Attachments: image001.png
COSTHA LOI 171.2 and SOC.pdf
Please see attached request for letter of interpretation.
Thanks,
Jonathon, HMIC
From: Frank Lopez <frank@costha.com>
Sent: Tuesday, May 28, 2024 4:09 PM
To: Kelley, Shane (PHMSA) <shane.kelley@dot.gov>
Cc: INFOCNTR (PHMSA) <INFOCNTR.INFOCNTR@dot.gov>; L'Gena Shaffer <Lgena@costha.com>;
Chris Yakush <Chris@costha.com>; Tom Ferguson <Tom@costha.com>; Julie Prescott
<Julie@costha.com>; Anne Barry <anne@costha.com>
Subject: COSTHA Letter of Interpretation Request regarding §171.2(b) and the requirement for
lithium ion batteries to be at a state of charge of 30% or less
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.
Dear Mr. Shane Kelley,
Attached please find COSTHA’s request for a letter of interpretation on §171.2(b) regarding
the air transportation requirement for lithium ion batteries to be at a State of Charge (SOC)
of 30% or less as it relates to subsequent offerors ability to rely on information from the
manufacturer or previous offeror on the SOC.
Please contact me if you should have any questions or need any additional information.
We appreciate your consideration.
Best regards,
Frank
__ __
Frank Lopez
Regulatory Compliance Specialist
COSTHA
Office: 518.761.0668 xt 222
http://www.costha.com
frank@costha.com
Follow us on LinkedIn

<<<PAGE 4>>>

Follow us on Instagram (@costha1972)
ENGAGE IN YOUR COSTHA MEMBERSHIP: Upcoming Events, Meetings, & Webinars
-- -- -- -- --
CONFIDENTIAL: UNAUTHORIZED USE OR DISCLOSURE IS STRICTLY PROHIBITED.
This information is intended to provide interpretative and authoritative information in regard to the subject
matter covered as a service to our clients and has been answered to the best of our ability based on the
information provided to us. We do not guarantee the accuracy or completeness of any such interpretation
or information, however, nor do we warrant that compliance with any advice we provide will guarantee
compliance with any legal or regulatory requirements. Our statements or opinions do not convey legal
interpretation and government authorities or legal counsel should be contacted for such a response.

<<<PAGE 5>>>

Richard Schweitzer, PLLC
May 28, 2024
President
Dan Hankinson
Program Manager
Stellantis
First Vice President
Janet Kolodziey-Nykolyn
Dir. Global Dangerous Goods Compliance
Pfizer, Inc.
Second Vice President
Carolyn Weintraub
Dir. Regulatory & Government Affairs US
Reckitt
Treasurer
Veronica Wilson
Director, HM Transportation
Wal-Mart, Inc
Secretary
Dave Madsen
Reg. Compliance Specialist - Americas
Autoliv ASP, Inc.
Executive Committee
Samuel Moyers
Director of Transportation Safety
ARCADIS
Board of Directors
Carla Andrews
DG Safety Manager
FedEx Logistics
Jon Pelis
Sr. Manager, Dangerous Goods / Product
Regulatory Compliance
The Boeing Company
John Redman
Manager, TMNA Hazmat Compliance
Toyota Motor North America, Inc.
Lynn Reiman
Global Regulated DG Director
UPS
Mr. Shane Kelley
Director, Standards and Rulemaking Division
Pipeline and Hazardous Materials Safety Administration
Attn: PHH-10
U.S. Department of Transportation
East Building, 1200 New Jersey Ave., SE
Washington, D.C. 20590-0001
Submitted: Via Email
cc: infocntr@dot.gov
Dear Mr. Kelley,
The Council on Safe Transportation of Hazardous Articles (COSTHA) requests a
formal letter of interpretation on behalf of the air carrier roundtable regarding the
requirements of §175.33(c)(1)(i). COSTHA member airlines have experienced
differences in interpretation regarding the requirement to ensure a copy of a
shipping paper accompanies a shipment it covers during transportation aboard an
aircraft.
COSTHA is a not-for-profit organization representing manufacturers, shippers,
distributors, carriers, freight forwarders, trainers, packaging manufacturers and other
associated with the hazardous materials transportation industry. In addition to
promoting regulatory compliance and safety in hazardous materials transportation,
COSTHA assists its members and the public in evaluating the practicality and
efficacy of laws, rules and regulations for the safe transportation and distribution of
hazardous materials. COSTHA is also pleased to have 17 air carriers included in
our membership.
The 49 CFR Subpart A, Part 175, §175.33(c)(1)(i) currently reads:
Erik Steinbeck
Global Logistics Manager
Parker Hannifin - LORD Corporation
Wim Verkuringen
Director DG & Transportation Safety
Johnson & Johnson
Mike Wentz
Sr. Specialist Hazmat/DG Compliance
American Airlines
Ensure a copy of the shipping paper required by §175.30(a)(2) accompanies
the shipment it covers during transportation aboard the aircraft.
General Counsel
Richard Schweitzer, PLLC
COSTHA requests this interpretation confirm our understanding that the
requirement of §175.33(c)(1)(i) aligns with the requirements of the International Civil
Aviation Organization (ICAO) Technical Instructions on the Safe Transport of
Dangerous Goods by Air (TI) in that, one shipping paper will accompany the entire
consignment versus a copy of the shipping paper be provided for each individual
package within the shipment. The ICAO Technical Instructions reference a
“consignment” vs. the HMR stating “shipment”.
Council on Safe Transportation of Hazardous Articles
10 Hunter Brook Lane, Queensbury, NY 12804 • Phone: (518)761-0389 • Fax: (518)792-7781 • www.costha.com

<<<PAGE 6>>>

The ICAO Technical Instructions (Doc 9284) 2023-2024 Ed states:
Part 7, Chapter 1, 1.2.2 - Where a dangerous goods transport document is provided in
accordance with 1.2.1 a), one copy must accompany the consignment to final
destination and one copy must be retained by the operator at a location on the ground
where it will be possible to obtain access to it within a reasonable period; the document
must be retained at this point until the goods have arrived at final destination, after which
time it may be stored elsewhere.
The ICAO Technical Instructions define:
Consignment One or more packages of dangerous goods accepted by an operator
from one shipper at one time and at one address, receipted for in one lot and moving
to one consignee at one destination address.
Shipment The specific movement of a consignment from origin to destination.
Example
A shipment containing 10 packages as a single consignment accepted by an operator from a
single shipper at one time and at one address, receipted for as a single lot and moving to a
single consignee at a single destination address, would require only one shipping paper on the
“number one” piece.
COSTHA members have experienced instances where Federal Aviation Administration (FAA)
inspectors or Principal Hazmat Inspectors (PHIs) interpreted the requirement of §175.33(c)(1)(i)
to require a copy of the shipping paper for each individual package within the consignment or
shipment. COSTHA member airlines do not believe this to be the requirement or intent of
§175.33(c)(1)(i).
COSTHA member airlines believe the inclusion of a copy of the shipping papers for every piece
of a multi-piece shipment would cause undue burden on the carrier through time and resources
required, is contrary to standard procedures aligned with international regulations, and provides
no added safety benefit. However, in the situation where a multi-piece shipment must be split for
accommodation purposes during transportation, a second shipping paper, properly annotated,
will accompany the spilt pieces.
In closing, COSTHA asks PHMSA to confirm our understanding that the provisions in
§175.33(c)(1)(i) require a single copy of the shipping paper to accompany a “consignment” or
shipment of multiple pieces of hazardous materials.
COSTHA appreciates your review of this interpretation request, and we look forward to hearing
from you soon.
Sincerely,
Frank Lopez
Regulatory Compliance Specialist

## Provenance

- Official: Yes
- Source: <https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/2024-10/240041.pdf>
- Source ID: `phmsa`
- SHA-256: `92ab0cdba5e47e4bc9e4a6f8a9b283c748e3cc8315771c00593e1358a4570da4`
- Retrieved: 2026-08-20T00:59:31.977Z
- Exported: 2026-08-22T11:40:51.376Z
- Document slug: `phmsa-interpretation-24-0041`

### Source metadata

```json
{
  "materialSubtype": "interpretation",
  "interpretationArea": "hazardous_materials",
  "representation": "full_text_from_official_pdf",
  "companies": [
    "Council on Safe Transportation of Hazardous Articles"
  ],
  "individuals": [
    "Frank Lopez"
  ],
  "refIds": [
    "24-0041"
  ],
  "catalogDates": [
    "2024-10-01"
  ],
  "catalogParts": [
    171,
    172
  ],
  "catalogRowCount": 2,
  "sourceRecordUrls": [
    "https://www.phmsa.dot.gov/node/75846"
  ],
  "linkedAttachmentUrls": [],
  "unavailableResponseUrls": [],
  "duplicateRepresentationUrls": [],
  "citedSections": [
    "171.2",
    "171.2(b)",
    "172.102",
    "175.33(c)(1)(i)",
    "175.30(a)(2)"
  ],
  "catalogPageUrls": [
    "https://www.phmsa.dot.gov/regulations/title49/section/1712",
    "https://www.phmsa.dot.gov/regulations/title49/section/172102"
  ],
  "pdfUrls": [
    "https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/2024-10/240041.pdf"
  ],
  "representations": [
    {
      "viewUrl": "https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/2024-10/240041.pdf",
      "detailUrl": null,
      "detailHtmlPath": null,
      "pdfUrl": "https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/2024-10/240041.pdf",
      "pdfArtifactPath": "data/sources/phmsa-interpretations/24-0041-d23e5c03eb.pdf",
      "pdfArtifactSha256": "983a79b7d2e80b604c90a79866cc72124c164355c22bf106a37c1afd258127c2",
      "extractedTextPath": "data/sources/phmsa-interpretations/24-0041-d23e5c03eb.v2.txt",
      "extractedTextSha256": "128197d20e232c249b50ea27e69f6f1afcee3afb5ffdebb69cb95003af25d28d",
      "pageCount": 6,
      "extractionVersion": 2
    }
  ],
  "caveat": "Interpretations apply regulations to the facts presented and do not create independently enforceable requirements.",
  "jurisdiction": "US"
}
```
