# Mr. James La Porte — Hazardous Materials Safety Interpretation

- **operation:** document
- **citation:** 09-0145
- **title:** Mr. James La Porte — Hazardous Materials Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 2009-07-22
- **effective on:** Not available
- **summary:** 09-0145 concerning 173.220, 173.6.
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-interpretation-09-0145.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-interpretation-09-0145.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-09-0145
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretations/2009/090145.pdf
**body:**

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1200 New Jersey Ave., SE
Washington, DC 20590
U.S. Department
of Transportation
Pipeline and Hazardous Materials
Safety Administration
JUL 2 8 2009
Mr. James La Porte
1670 Axtell
Troy, MI 48084
Ref. No. 09-0 145
Dear Mr. La Porte:
This responds to your June 17,2009 inquiry concerning requirements applicable to the
transportation of portable generators containing fuel under the Hazardous Materials
Regulations (HMR; 49 CFR Parts 17 1 - 180). Specifically, you ask if portable generators that
contain fuel are excepted from the HMR under 173.220(b)(4).
The answer is yes. In accordance with provisions in 58 173.220(b)(4) and 173.220(g), a
portable generator containing more than 17 ounces of liquid fuel that is transported by
highway or rail is excepted from HMR requirements provided all the conditions listed in
paragraph (b)(4) are met.
You also ask whether the 440-pound weight limit in the materials of trade (MOTs) exception
in 9 173.6 applies to the shipment of your portable generators containing fuel. A portable
generator transported in accordance with 8 173.220(b)(4) is excepted from all other HMR
requirements. Thus, the 440-pound weight limit for MOTs shipments does not apply.
I hope this answers your inquiry.
Sincerely,
Charles E. Betts
Chief, Standards Development
of Hazardous Materials Standards

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Message Page 1 of 2
§ 173.22 0
Drakeford, Carolyn (PHMSA)
From: INFOCNTR (PHMSA)
Sent: Thursday, June 18,2009 8 23 AM
To: Drakeford, Carolyn (PHMSA)
Subject: FW: Re PHMSA Hazmat Center Inquiry
Carolyn,
Thanks,
Rob
This gentleman would like a written letter of interpretation on the topic discussed below.
From: LA PORTE, JAMES J (ATTSI) [mailto:j17454@att.com]
Sent: Wednesday, June 17, 2009 3:17 PM
To: training (PHMSA)
Subject: FW: Re PHMSA Hazmat Center Inquiry
Was at the regional DOT training in Troy, MI and was told I could request an answer in writing and it should be no
problem:
Would like an e-mail response.
When transporting portable generators that contain fuel under 4.9-CFe173.220Se.ct1-on b14).(e) they are exempted
from the HMR regulations. It states that for quantities of flammable liquid fuel (gasoline) greater than 500 mL (17
ounces) may remain in self-propelled vehicles and mechanical equipment (portable generators) only under the
following conditions:
Transportation by motor vehicle or rail car with the following requirements:
The fuel tank caps, engine components and lines must be securely closed to
prevent leakage of fuel during transport.
Fuel tanks must not be filled to more than 90% of their total capacity
Thoroughly wiped to remove any residue of diesel on the outside of the
generator.
If practical, the generator should be stored away from direct sunlight and
potential ignition sources.
This is also true for diesel fuel (combustible liquid) This only applies to rail and
ground transport.
My question is two fold. Is this true. Second, if transporting generators on a trailer
(let say 10 generators that have 12 gallons of fuel). If these are exempted from
the HMR then does the weight of fuel count if transporting these under the
Materials of Trade and the 440 pound limit?
Please advise,
Jim La Porte

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Message Page 2 of 2
-----Original Message-----
From: victoria.lehrnan@dot.gov [rnailto:victoria.lehrnan@dot.gov]
Sent: Wednesday, June 17, 2009 8:43 AM
To: LA PORTE, JAMES J (ATTSI)
Subject: Re PHMSA Hazmat Center Inquiry
Dear James LaPorte,
We have received your inquiry about the hazardous materials regulations (49 CFR
Parts 171-180). The hazardous materials regulations are available at the following
URL :
A hazardous materials regulatory specialist would be happy to speak with you
regarding your inquiry. You may contact the Hazardous Materials Information
Center, which is staffed with regulatory specialists who can quickly answer your
questions by phone, Monday through Friday, 9 AM - 5 PM EST at (800) 467-4922 or
(202) 366-4488. Alternatively, if you would like a regulatory specialist to
contact you directly, please respond to this e-mail with a telephone number where
you can be reached between 9 AM and 5 PM EST.
Victoria, Hazardous Materials Specialist
An e-mail response from this office is considered informal guidance. Formal
guidance may be requested in accordance with 49 CFR 105.20.
ht%p:/ihazm~t.dot.co~.~/infocerit.htrn . . . . . . . . . . ................ .. ... ...
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