# Briggs and Stratton Corporation — Hazardous Materials Safety Interpretation

- **operation:** document
- **citation:** 12-0011
- **title:** Briggs and Stratton Corporation — Hazardous Materials Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 2012-02-28
- **effective on:** Not available
- **summary:** 12-0011 response to Briggs and Stratton Corporation concerning 173.29, 176.905.
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-interpretation-12-0011.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-interpretation-12-0011.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-12-0011
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretations/2012/120011.pdf
**body:**

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U.S. Deportment 1200 New Jersey Avenue SE
of Transportation Washington. DC 20590
Pipeline and Hazardous
Materials Safety
Administration
FEB 2 8 ~~~1
Mr. Don Pucci
Environmental Manager, Engine Operations
Briggs and Stratton Corporation
731 Hwy 142
Poplar Bluff, MO 63901
Reference No.: 12-0011
Dear Mr. Pucci,
This is in response to your January 09,2012 email requesting clarification of the
International Dangerous Goods (IMDG) Code pertaining to the shipment of standalone
internal combustion engines under UN 3166. Your questions are paraphrased and
answered as follows:
01. Special provision (SP) 961 of the IMDG Code provides an exemption for vehicles or
equipment (including standalone internal combustion engines) powered by a flammable
liquid fuel if the fuel tank of the vehicle or equipment is empty and installed batteries are
protected from short circuit. Specifically, you ask for an interpretation of the word
"empty" as it relates to SP 961 in the IMDG Code.
AI. For the purposes of SP 961 of the IMDG Code, empty means that the fuel tank is
empty and the engine cannot be operated due to a lack of fuel. The fuel tank, fuel lines,
and the engine itself do not need to be drained, cleaned, or purged of all flammable liquids
and vapors to be considered exempt. A vehicle or piece of equipment powered by
flammable liquid fuel is considered empty when it is run until it stalls for lack of fuel, the
fuel gauge reads empty, and when the key is turned over the vehicle or equipment does not
start. A standalone internal combustion engine containing only residual fuel in the lines
and tank that is in an amount that is insufficient to allow the engine to operate, and with no
signs of leakage may be considered empty for the purposes of taking the exceptions
provided by SP 961.

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Q2. If residual fuel is allowed, what amount of liquid fuel in the tanks is permissible in
order to meet the definition of empty for SP 961?
A2. See answer AI.
I trust this satisfies your inquiry. Please contact us if we can be of further assistance.
sv2~- ~
Delmer Billings ~
Senior Regulatory Advisor
Standards and Rulemaking Division

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Drakeford, Carolyn (PHMSA)
From: INFOCNTR (PHMSA)
Sent: Monday, January 09, 20124:02 PM
To: Drakeford, Carolyn (PHMSA)
Subject: FW: Request for formal letter of interpretation
Hi Carolyn,
We received the following request for a letter of interpretation.
Thanks,
Victoria
Victoria Lehman
Hazmat Information Center (HMIC)
http://phmsa.dot.gov/hazmat/info-center
(202) 366-1035
From: Pucci, Don [mailto:]
Sent: Monday, January 09, 2012 11:09 AM
To: INFOCNTR (PHMSA)
Subject: Request for formal letter of interpretation
Dear Sirs,
I am requesting a formal letter of interpretation from the International Maritime Organization regarding
regulations contained within the IMDG Code codified in the 2010 EDITION. I Specifically reference recently implemented
regulations regarding vessel transportation of articles containing internal combustion and/or internal combustion
engines themselves.
These have been incorporated in Amendment 35-10. This portions states that vehicle and/or internal combustion
engines will fall within the scope of the IMDG code and must be notified to carriers as dangerous goods, UN 3166, Class
9.
Most of our products have tanks that have not had fuel in them, and so clearly the provisions of Special Provision
961 (SP 961). However one model of product is tested with fuel in the tank. There is typically a residual amount offuel
remaining, which is less than 8 ml. Certainly, the engine cannot run on this amount of fuel and so essentially complies
with criteria codified in 49 CFR 176.905 (i)(l).
SpeCial Provision ( SP961) allows us to ship these products as non Dangerous Goods if the fuel tanks(s) of the
vehicle or equipment powered by a flammable liquid fuel is empty and installed batteries are protected from short
circuit.
Operators are informing us that as long as the fuel tanks have been drained, a small amount of liquid fuel residual
is permitted. However since this is not in line with the long-standing definition from the U.S. Department of
Transportation's regulations codified in 49 CFR we would like you to send a written interpretation as to what the
definition of empty is specific to the verbiage in SP 961 within the IMDG code.
Is a residual amount of fuel allowed? If so, what amount of liquid fuel ( gasoline) in the tanks is permissible in order
to meet the definition of empty for SP 961 purposes?
We would greatly appreciate a response, because these are being shipped as a Dangerous Goods while we await
your written interpretation. An email can be sent to:
pucci.don@basco.com.
Sincerely,
1

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Don Pucci, Environmental Manager, Engine Operations
2
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