# Regulatory Resources, Inc. — Hazardous Materials Safety Interpretation

**Citation:** 06-0076  
**Type / status:** guidance / guidance  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2006-07-27

06-0076 response to Regulatory Resources, Inc. concerning 173.136, 173.22.

## Document text

<<<PAGE 1>>>

U.S. Department
of Transportation
Washington, D.C. 20590
400 Seventh Street, S.W.
Pipeline and Hazardous
Materials Safety Administration
JUL 27 2006
Mr. Wade Winters
Ref. No. 06-0076
240 Joshua Road
Regulatory Resources, Inc.
Kennewick, WA 99338
Dear Mr. Winters:
This is in response to your March 30, 2006 letter regarding the applicability of the
Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180) to a product consisting
of small amounts of hazardous materials absorbed into polyethylene pellets. You
enclosed a picture of the pellets and the packaging. You also enclosed material safety
data sheets for the following product constituents: piperidine, a corrosive liquid; pyrazine,
a flammable solid; 1-methylpiperazine, a corrosive, flammable liquid; 1-methy piperidine,
a flammable liquid, corrosive; and 1-methylpyrrolidine, a flammable liquid, corrosive.
constituents completely absorbed in a vacuum environment into porous polyethylene
According to your letter, each product to be shipped contains one or more of the above
pellets. The pellets are placed into a plastic dish and heat sealed in individual metalized
polyethylene packets. Once the packet is sealed, a 2-3 mm hole is created on one surface
weighs approximately 2.75 grams and contains between 0.7 and 1 gram of constituent
of the packet then resealed with metalized self-adhesive tape. Each completed packet
state the small amount of hazardous material absorbed into the polyethylene pellets further
material. The package as prepared for transport consists of 16-32 individual packets. You
contained within the packet do noi pose a risk in transportation
You did not provide sufficient information on the final product to make a deterrination
properly class a material as hazardous or non-hazardous. This office does not perform
regarding classification. Under § 173.22 of the HMR, it is the shipper's responsibility to
that function.
173.22
173.136 (b)
060076

<<<PAGE 2>>>

If you determine that the material in the form it will be offered for transportation does not
to the HMR.
meet the definition of any hazard class or division in the HMR, the material is not subject
I hope this information is helpful. Please contact us if you require additional assistance.
Sincerely,
Office of Hazardous Materials Standards
Chief, Standards Development

<<<PAGE 3>>>

03/30/2006 12:42 FAX
509 628 0972
Regulatory Resources Inc
2002/003
Leary
Regulatory
$173.22
Kennewick, WA 99338
240 Joshua Road
¡ Resources..
5173-13666)
volce: 509-528-1020
fax: 509-628-0972
The source You Come Back to d
Shipper's Responsibility
wade@regulatoryresources.net
www.regulatoryresources.net
06-0076
March 30, 2006
....
Mr. Edward T. Mazzullo
"==
Director, Office of Hazardous Materials Standards
U.S. DOT/PHMSA (PHH-10)
Washington, D.C. 20590-0001
400 7t Street S.W.
Dear Mr. Mazzullo.
Regulatory Resources, Inc. (RRI) Is a consulting and training company serving clients sublect to the
Agency (EPA) solid and hazardous waste management regulation. As provided In 49 CFR 173.136(b), RRI
Department of Transportation (DOT) Hazardous Materlals Regulations (HMRs) and the Environmental Protection
We do not believe that the materlal, as presented for transport, poses a risk In transportation.
Is requesting a determination for the classification of a product with limited amounts of a Class 8 corrosive.
Each product to be shipped contains one or more of the following active constituents:
• 1-methylpyrolidine (flammable and corrosive llauld) - aluminum corrosion
• 1-methylplperazine (corrosive and flammable liquld) - aluminum corrosion
• 1-ethylpiperazine (flammable Ilquid)
• 1-methylpiperldine (flammable and corrosive llquid) - aluminum corrosion
• piperidine (corrosive and flammable llquid) - aluminum corrosion
The actives above are absorbed in a vacuum environment Into very porous MP-100 polyethylene pellets
• ==
(e.g.. no free liquid available). These pellets are placed onto a small plastic boat dish and the entire
assembly is heat sealed in individual metalized polyethylene packets. The metalized polyethylene is
constructed of a thin aluminum foll surrounded on both sides by a polyethylene film; it Is the same metalized
1.65 grams of aluminum avallable per packet. Once heat sealed, a small 2-3mm hole is made in one
polyethylene used for military MRI ratlons (Marvelseal 470, MIL-B-131J, Type 1, Class 1). There Is approximately
surface of the packet and covered and sealed with metallzed self-adhesive tape. The entire packet, when
completed, welghs approximately 2.75 grams.
future to up to two grams per packet. During testing. 0.7 grams active reacted in the packet configuration
Each sealed packet contains between 0.7 to 1 gram of absorbed active. This amount may Increase in the
only 1,000 grate luminum avalable in contact with the dete 2 mill would rake apront o
87.5 times more active to react with the available aluminum (1.65 grams). Hence, in the urlikely event the
transport, there needs to be 98.86% more active In each packet to react with the aluminum of just one
polyethylene liner were to be breached, given the amount of active and configuration of the product for
The package configuration for transport will consist of 16-32 Individual packets. The packet assembly Itself
Is capable of withstanding, without leakage, standard pressure at 130°F.

<<<PAGE 4>>>

03/30/2006 12:43
FAX
509 628 0972
Regulatory Resources Inc
2003/003
Regulatory Resources, Inc.
Kennewick, WA 99338
240 Joshua Road
Voice: 509-628-1020
ww. regulatoryresources.
Fax: 509-628-0972
March 30, 2006
Mr. Mazzullo
Page 2
..•..
concurrence in our classification determinatlon.
RRI belleves that the actives as presented for transport do not pose a risk in transportation. We seek your
Thank you. Please call if you have any questions or need further Information.
For Regulatory Resources, Inc.,
WANTS
President
Wade A. Winters, CET, CHMM
WAW/lom
... ....
..=

## Provenance

- Official: Yes
- Source: <https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/2006/060076.pdf>
- Source ID: `phmsa`
- SHA-256: `f241fbebfdb65d5c43678a44eddada99a88b18dbcd2036b3db0a958dbcf7424c`
- Retrieved: 2026-08-20T00:59:31.977Z
- Exported: 2026-08-22T13:50:25.383Z
- Document slug: `phmsa-interpretation-06-0076`

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