# Monsanto Company — Hazardous Materials Safety Interpretation

**Citation:** 00-0025  
**Type / status:** guidance / guidance  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2000-03-10

00-0025 response to Monsanto Company concerning 171.8.

## Document text

<<<PAGE 1>>>

f Transportatio
S. Departmer
Washington, D.C.
Special Programs
Research and
Administration
MAR 1 0 2000
Mr. William J. Briner
lonsanto Company
regulatory Affairs Manage
Ref. No. 00-0025
800 North Lindbergh Blvd.
St. Louis, MO
63167
Dear Mr. Briner:
This is in response to your letter dated January 13, 2000,
Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180).
regarding the definition of a hazardous substance under the
Specifically,
you ask whether a package containing 400 pounds
of a D001 waste, the composition of which is known to be 100%
mineral spirits, would exceed its reportable quantity (RQ) as
stipulated under Appendix A to § 172.101.
The appropriate Rl for a hazardous waste depends on the amount
of information available on the waste stream including the
constituents of
concentrations.
the waste stream and their respective
If the constituent and its exact
the constituent is appropriate.
concentration in the waste stream are known, then the RQ for
RQ of 1000 pounds (454 kg). If Toluene is the only
For example, Toluene has an
constituent and its concentration in a mixture or solution is
known, then the RQ for Toluene is appropriate. However, if
the waste's constituent or its respective concentration is
the waste stream.
unknown, then the appropriate RO is that which is assigned to
and their exact concentration in the mineral spirits,
Therefore, you must know the constituents
ee mineral
otherwise the material is subject to the RO for a
(100
pounds (454 kg)).
. D001 waste
I hope this satisfies your request.
Sincerely,
Transportation Regulations Specialist
Office of Hazardous Materials Standards
000025
1118

<<<PAGE 2>>>

BAt
MONSANTO
Food - Health • Hope
S1718H
Hazardous Substan
ST. LOUIS, MISSOURI 63167
0o NORTH LINDBERGH BOULEVAR
January 13, 2000
00 - 0025
U.S. Department of Transportation
Ottice of Hazardous Materials Standards (DHM-10)
Research and Special Programs Administration
Washington,
400 Seventh Street, S.w.
Attn: Mr. Thomas Allan
20590-0001
Dear Mr. Allan:
I am writing to request a written interpretation concerning 49
Substances and Reportable Quantities.
CFR 172.203 (C) and Appendix A to 172.101 - List of Hazardous
A 55-gallon drum contains a net weight of 400 lbs. of an EPA RCRA
100% mineral spirits, a D001 characteristic hazardous waste.
Ine composition of the waste is known to be
Mineral spirits is not specifically listed as a hazardous
substance in Appendix A to 172.101 - List of Hazardous Substances
and Reportable, Table 1 - Hazardous Substances Other Than
Radionuclides.
Question: Does this drum contain a reportable quantity of the
hazardous
substance D001?
Thank you in advance for providing this interpretation.
If you have any questions, please call me at (314) 694-2999.
Sincerely,
Wiliam If Briner
William J. Briner
Regulatory Affairs Manager
-

## Provenance

- Official: Yes
- Source: <https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/2000/000025.pdf>
- Source ID: `phmsa`
- SHA-256: `1080c73fcf886595347f80cc48a4708c9ea05ce38f0603934c445760b45698a9`
- Retrieved: 2026-08-20T00:59:31.977Z
- Exported: 2026-08-22T19:49:43.820Z
- Document slug: `phmsa-interpretation-00-0025`

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