# Department of The Army — Hazardous Materials Safety Interpretation

**Citation:** 22-0057  
**Type / status:** guidance / guidance  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2023-07-28

22-0057 response to Department of The Army concerning 178.503, 178.601.

## Document text

<<<PAGE 1>>>

U.S. Department
of Transportation
Pipeline and Hazardous
Materials Safety
Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
July 28, 2023
Mr. Thomas Kudasz
Director, Command Safety
Department of The Army
Military Surface Deployment and Distribution Command
1 Soldier Way
Scott Air Force Base, IL 62225-5006
Reference No. 22-0057
Dear Mr. Kudasz:
This letter is in response to your June 3, 2022, letter requesting clarification of the Hazardous
Materials Regulations (HMR; 49 CFR Parts 171-180) applicable to non-bulk United Nations
(UN) performance packaging. Specifically, you ask whether placing additional new padding
between the sealed inner bag and the outer fiberboard box of a previously-tested combination
packaging would be considered a “different” packaging and require separate design qualification
testing.
As described by your scenario, it is the opinion of this Office that the addition of new padding
placed between the sealed inner bag and the outer fiberboard box would not be considered a
“different” packaging as defined in § 178.601(c)(4). The padding is merely for cushioning
purposes and does not alter the combination packaging in any tangible manner provided the
completed package does not exceed its rated capacity. See § 178.503(a)(11).
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

<<<PAGE 2>>>

DEPARTMENT OF THE ARMY
MILITARY SURFACE DEPLOYMENT AND DISTRIBUTION COMMAND
1 SOLDIER WAY
SCOTT AFB, IL 62225-5006
Director, Command Safety 3 June 2022
MEMORANDUM FOR ASSOCIATE ADMINISTRATOR FOR HAZARDOUS MATERIALS SAFETY
ATTENTION: GENERAL APPROVALS & PERMITS, PHH-31
PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION
U.S. DEPARTMENT OF TRANSPORTATION
EAST BUILDING
1200 NEW JERSEY AVENUE, SE
WASHINGTON, DC 20590-0001
infocntr@dot.gov
SUBJECT: Interpretation of 178.601 UN Specification (POP) Packaging Requirements
In accordance with the provisions of Title 49, Code of Federal Regulations (CFR), section 105.20, this
application is hereby made for interpretation of permitted relief from the Hazardous Materials
Regulations on behalf of the Department of Defense.
The interpretation request is regarding adding an intermediate level of packaging that was not present
in the configuration used during POP testing. As an example, for shipping an article, the POP test
report depicts the article being packaged in an inner packaging consisting of a sealed bag. Can that
sealed bag be packed in padding and placed inside an outer fiberboard box to create a combination
package inside the POP-certified fibreboard box? Will adding to the specified configuration of the
packaging require new POP testing to be performed?
This request is submitted by usarmy.scott.sddc.mbx.hazmat-team@army.mil Safety Team, Mr. Tom Kudasz,
(618) 220-5899, e-mail thomas.m.kudasz.civ@army.mil and Mr. Jeff Leitschuh, (618) 220-5040, e-mail
jeffrey.m.leitschuh.civ@army.mil, Military Surface Deployment and Distribution Command.
ELIAS V. CANTU
Director, Command Safety
1

<<<PAGE 3>>>

## Provenance

- Official: Yes
- Source: <https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/docs/standards-rulemaking/hazmat/interpretations/77881/220057.pdf>
- Source ID: `phmsa`
- SHA-256: `5881837769d6518a527812dd4739b8539d0b4f44a6efaba9200d0e2995afddf5`
- Retrieved: 2026-08-20T00:59:31.977Z
- Exported: 2026-08-23T14:47:04.232Z
- Document slug: `phmsa-interpretation-22-0057`

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