# Woodside Inc. — Hazardous Materials Safety Interpretation

- **operation:** document
- **citation:** 03-0174
- **title:** Woodside Inc. — Hazardous Materials Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 2003-07-23
- **effective on:** Not available
- **summary:** 03-0174 response to Woodside Inc. concerning 173.22.
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- **markdown:** https://regulus.evalyn.ai/document/phmsa-interpretation-03-0174.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-03-0174
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/2003/030174.pdf
**body:**

<<<PAGE 1>>>

U.S. Department
of Transportation
JUL 2 3 2003
Nashington, D.C. 20590
100 Seventh St., S.W
Andrew Woodside Ph.D.
Woodside Inc.
Ref. No. 03-0174
300 Hanna Dr.
Ponca City,
OK
74604
Dear Dr. Woodside,
applicabilite pose azad us Material gutter sardi cR
Parts 171-180) to tricresyl phosphate, with less than 3 percent
ortho isomer.
classify a hazardous material.
Under § 173.22, it is the shipper's responsibility to properly
required to be verified by this office.
Such determination are not
However, "Tricresyl
phosphate with more than 3 percent ortho isomer,
PG II" is not an
appropriate proper shipping name if your product
6.1, UN 2574,
has less then 3 percent ortho isomer.
states that a material shall be described by an appropriate
Section 172.101 (c) (12) (i)
proper shipping name listed in association with the correct
for the material. If your material does not meet the criteria of
hazard class, packing group, hazard zone, or subsidiary hazard
a Division 6.1 and does not meet any other hazard class, it is
not subject to the HMR.
I hope this satisfies your request.
Sincerely,
Office of Hazardous Materials Standards
| 13,22
030174

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InfoCutr
BAH
sor the atached
Andrew Woodside Ph. D.
email interp request
$/13.132
Woodside Inc.
Ponca City, Oklahoma 74604.
300 Hanna Drive
Applicability
580-765-8683
03-0174
To Whom it May Concern,
the following question:
Per CFR 49 Section 105.20 "Guidance and Interpretations" I am requesting a formal response to
Is tricresyl phosphate (UN 2574) containing less than 3% of the ortho isomer considered to be a
hazardous material for shipping purposes?
this is incorrect, please correct me and provide an explanation. This chemical called tricresy!
Based on my chemical knowledge and my interpretation of the regulations in CFR 49, it is not. If
phosphate is a lead scavenger for internal combustion engines. It has been used by piston
technical grade of TCP. The technical grade of this chemical contains less than 1% of the ortho
engine aircraft operators for fifty years. I plan to make a business of buying and re-selling the
isomer which is the isomer that is considered highly toxic. The table in CFR 49, part 172 lists TCP
than 3% of the ortho isomer is not considered hazardous and thus may be shipped without regard
with greater than 3% of the ortho isomer as being hazardous. May I infer then, that TCP with less
to the hazardous material regulations?
Thank you for your formal guidance.
Kind Regards,
Andrew B. Woodside Ph.D.
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