# North Central Laboratories — Hazardous Materials Safety Interpretation

**Citation:** 99-0190  
**Type / status:** guidance / guidance  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 1999-08-04

99-0190 response to North Central Laboratories concerning 171.8.

## Document text

<<<PAGE 1>>>

of Transportation
U.S. Department
400 Seventh Street, S.W.
Washington, D.C.
20590
Research and
Special Programs
Administration
AUG 4 1999
Ms. Pat Albrecht
Ref. No. 99-0190
North Central Laboratories
P.O. Box 8
Birnamwood, WI
54414
Dear Ms. Albrecht:
This is in response to your letter dated July 14, 1999,
requesting clarification of the definition for materials of trade
under the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-
180). Specifically you ask if hazardous materials transported
between your company's facilities may be considered materials of
trade.
One criteria for a material of trade is that a hazardous material
is transported by a private carrier in direct support of its
principal business which may not be transportation by motor
vehicle.
If the hazardous materials transported between your
company's facilities are used to, support the business, and
provided all condition of § 173.6 are met, the materials of trade
exception may be applied to your scenario.
I hope this satisfies your request.
Sincerely,
Transportation Regulations Specialist
Office of Hazardous Materials Standards
990190
118
SEA...

<<<PAGE 2>>>

FROM : NO OF WISCONSIN INC.
PHONE NO.: 17154492454
Jul.
14 1992
NCL north central laboratories
PO. Box 8 Birnamwood. Wl 54414 715-449-2673
TAX TRANSMISSION
8173.6
99-0190
DATE: 07/14/99
To: Mr. Edward I. Mazzullo
From: Pat Albrecht
Director, Office of Hazardous
North Central Labs
Material Standards
FAX#: 1-715-449-2454
FAX#: 202-366-3012
Phone: 1-715-449-2693
Dear Mr. Mazzullo,
I need to obtain a letter from your office in regards to an email
question that was answered via a call back by your office.
My question was pertaining to transporting Hazardous materials,
class 3, 8, 5.1 and 6.1 in 20L or 2.5kg or less amounts packing
group Il and III from our manufacturing lab to our shipping
building located about 1/8 mile away via public roads.
I was told by your office that we could transport our products
between our two buildings under CFR 173.6: 'Materials of Trade
Exceptions".
Could you please fax written confirmation of this so we may have
it on file?
Thank you,
Pat allows
Pat Albrecht
NCL of Wisconsin, Inc.

## Provenance

- Official: Yes
- Source: <https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/1999/990190.pdf>
- Source ID: `phmsa`
- SHA-256: `00b44c5499dadae7cb8a1a76b722a58aefcef26cd01aa77f6bfdff2e8445c509`
- Retrieved: 2026-08-20T00:59:31.977Z
- Exported: 2026-08-24T01:00:48.392Z
- Document slug: `phmsa-interpretation-99-0190`

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