# Monsanto Company — Hazardous Materials Safety Interpretation

**Citation:** 00-0107  
**Type / status:** guidance / guidance  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2000-05-16

00-0107 response to Monsanto Company concerning 171.8.

## Document text

<<<PAGE 1>>>

U.S. Department
of Transportation
Special Programs
Research and
Administration
APR 1 3 2000
Mr. William J. Briner
Ref. No. 00-0107
Regulatory Affairs Manager
Monsanto Company
800 North Lindbergh Blvd.
St. Louis, MO
63167
Dear Mr. Briner:
This is in response to your letter dated April 6, 2000,
regarding the definition of a hazardous substance under the
Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180).
Specifically, you ask whether a package containing 400 pounds
of a D001 waste
known to be 100 percent ethanol would meet the
definition of a hazardous substance under $ 171.8.
The answer is yes. The appropriate RQ for a hazardous waste
(e.g., D001) made up entirely of a material not specifically
listed under Appendix A to S 172.101 is that which is assigned.
to the waste (e.g., D001) •
Therefore, waste ethanol is
subject to the RQ for a D001 waste (100 pounds (454 kg)).
I hope this satisfies your request.
Sincerely,
John A. Gale
Transportation Regulations Specialist
Office of Hazardous Materials
Standards
000107
1118

<<<PAGE 2>>>

04/06/00
15:31
2314 694 4327
MONSANTO MFG SVC
чу мия
BAH
MONSANTO
Food - Health - Hope
8171.8 Haz
MONSANTO COMPANY
Sr. LOUIs, MISSOURI 03167
http://www.monsanto.com
PHONE (314) 694-1000
April 6, 2000
00-0107
u.S. Department of Transportation
Research and Special Programs Administratior
office of Hazardous Materials Standards
(DHM-10)
400 Seventh Street, S..
Washington, D.C. 20590-0001
Attn:
Mr.
Edward Mazzullo
FAX: (202) 366-3012
Dear Mr. Mazzullo:
I am writing to request a written interpretation concerning 49
CER 172.203 (c)
and "Appendix A
to 172.101 - List of Hazardous
Substances and Reportable Quantities.
A 55-gallon drum contains a net weight of 400 lbs. of an EPA RCRA
hazardous waste.
The composition of the waste is known to be
100% ethanol, a D001 characteristic hazardous waste.
Ethanol 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,
William I. Briner
Wílliam J. Briner
Regulatory Affairs Manager

## Provenance

- Official: Yes
- Source: <https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/2000/000107.pdf>
- Source ID: `phmsa`
- SHA-256: `33119078a2a016c551906a199e72d72e076a18829755fd0ddfc8fdea3a4d297b`
- Retrieved: 2026-08-20T00:59:31.977Z
- Exported: 2026-08-23T13:52:16.771Z
- Document slug: `phmsa-interpretation-00-0107`

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