# Core Foam — Hazardous Materials Safety Interpretation

**Citation:** 03-0085  
**Type / status:** guidance / guidance  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2003-06-20

03-0085 response to Core Foam concerning 173.154.

## Document text

<<<PAGE 1>>>

of Transportation
U.S. Department
Washington, D.C. 20590
400 Seventh St., S.W.
Speeia Programs
JUN 2 O 2003
idministration
Mr. Richard Porter
President
Ref. No. 03-0085
Core Foam
P.O. Box 10393
Knoxville, TN 37939
Dear Mr. Porter:
This is in response to your March 25, 2003 letter, and subsequent telephone conversation with
Sandra Webb of my staff requesting clarification as to whether your product described as "Core
Foam Foaming Catalyst Concentrate" offered for transportation by your company may be shipped
under the description "Consumer commodity, ORM-D" under the Hazardous Materials Regulations
(HMR; 49 CFR Parts 171-180).
Your letter refers to your product as consisting of, but not limited to, a liquid blend of acids,
surfactants, and other aryl/alkyl sulfonic acids with no more than 5 percent free sulfuric acid. This
material is packaged in one-gallon containers, packed four (4) per box and is being offered for
transportation as limited quantities under 173.154(b). Also, your letter indicates that the concentrate
is not intended for sale through a retail agency but rather a wholesale distributor and is not consumed
by individuals for purposes of personal care or household use. In the telephone conversation with
Ms. Webb you indicated that your product meets the Packing Group III criteria.
In accordance with 49 CFR 173.22, it is the shipper's responsibility to properly classify a hazardous
material for transportation. This Office does not perform this function. In general terms, a consumer
commodity is a material that is packaged and distributed in a form intended or suitable for retail sale
and personal or household use. This definition includes materials that are suitable for retail sale even
if your company does not specifically intend to do so. Therefore, based on the information
provided in your letter, it is the opinion of this Office that your product "Core Foam Foaming
Catalyst Concentrate" qualifies for the consumer's commodity exception provided under
§ 173.154(c).
I hope this information is helpful. If we can be of further assistance, please contact this Office.
Chief, Standards Development
Office of Hazardous Materials Standards
173.154
030085

<<<PAGE 2>>>

webb
§173.156
FORM
Consumer Commodity /0R42:
Masonry Foam Insulation
03-0085
25 March 25, 2003
Edward Mazzullo
Director of Office of Hazardous Materials Standards
USDOT/RSPA (DHM-10)
400 7" Street SW
Washington, DC 20590
Dear Sir:
"CoreFoam Foaming Catalyst Concentrate," with respect to classification as a Consumer
CoreFoam, Inc. is requesting written clarification on the status of one of its products,
Commodity/ORM-D material.
CoreFoam Foaming Catalyst Concentrate is a liquid blend of acids and surfactants,
namely phosphoric acid and other aryl/alky! sulfonic acids with not more than 5 percent
Exception 173.154 according to the List of Hazardous Substances. The concentrate is
free sulfuric acid. All of the blend constituents meet the criteria for the Limited Quantity
packaged in one gallon containers, packed 4 per box, and is shipped by CoreFoam via
common carrier to customers, typically insulation contractors, who have the specialized
compressed air to produce foam insulation which is injected into concrete masonry walls
equipment and training necessary to combine the concentrate with water, resin and
or other enclosed cavities.
CoreFoam, Inc. currently treats the concentrate as a Hazardous Material with respect to
labeling and shipping papers and also pays a hazardous material surcharge for all
supply similar products in similar packaging to the same customer base via common
shipments of the product. Other competitor(s) in the industry, however, apparently
carrer yet classify these materials as ORM-D/Consumer Commodity goods, which
product(s) seem less hazardous.
allows them to avoid the hazardous material surcharge and, by inference, makes their
In reviewing the definitions of ORM-D/Consumer Commodity goods, the classification
of CoreFoam Foaming Catalyst Concentrate and other competitive products is unclear.
On the one hand the concentrate meets the definition of ORM-D in that a limited hazard
is present during transportation due to its form, quantity and packaging. The concentrate
clearly appears not to be a Consumer Commodity, however, since the intended sales
outlet is through wholesale distribution rather than retail sales, the material requires
specialized training and equipment to use and the material is not consumed by individuals
for purposes of personal care or household use..
P.O. Box 10393 • Knoxville, TN 37939 • 1,800.656.FOAM (3626) • Fax: 865.588.6607 • www.corefoam.com
CoreFoam Inc.

<<<PAGE 3>>>

Can you please clarify whether or not CoreFoam, Inc. can label and ship its Foaming
shipping the goods as a limited quantity of a hazardous material?
Catalyst Concentrate as an ORM-D/Consumer Commodity material or should continue
for addressing this inquiry.
If there are questions, please call Richard Porter at 1-800-656-3626. Thanks in advance
Sincerely,
CoreFoara, Inc.
Richard Porter.
President

## Provenance

- Official: Yes
- Source: <https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/2003/030085.pdf>
- Source ID: `phmsa`
- SHA-256: `04fddc9936d5b8c5ec36975eb9bb619cb90039dbd6a8dd5b0baf73a18e0038c0`
- Retrieved: 2026-08-20T00:59:31.977Z
- Exported: 2026-08-22T02:51:37.420Z
- Document slug: `phmsa-interpretation-03-0085`

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