# United Airlines — Hazardous Materials Safety Interpretation

- **operation:** document
- **citation:** 10-0050
- **title:** United Airlines — Hazardous Materials Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 2010-04-21
- **effective on:** Not available
- **summary:** 10-0050 response to United Airlines concerning 175.75.
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-interpretation-10-0050.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-interpretation-10-0050.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-10-0050
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretations/2010/100050.pdf
**body:**

<<<PAGE 1>>>

U.S. Department of Transportation Pipeline and Hazardous Materials
Safety Administration
APR 21 2010
. 1200 New Jersey Ave, SE
Washington, D.C. 20590
Ms. Nancy Finkenkeller
Staff Specialist - Dangerous Goods
United Airlines
1200 East Algonquin Road
Elk Grove, IL 60007
Ref. No. 10-0050
Dear Ms. Finkenkeller:
This responds to your February 22, 2010 email requesting clarification of the Hazardous
Materials Regulations (HMR; 49 CFR Parts 171-180) regarding quantity limitations and cargo
location for carriage by aircraft under § 175.75 and United States (U.S.) Variation 13 in the
International Civil Aviation Organization (ICAO) Technical Instructions. Specifically, you
request clarification on the 75 kg net weight limitation of Division 2.2 materials stowed in an
inaccessible manner as it applies to articles.
For each package containing a hazardous material acceptable for carriage aboard passengercarrying
aircraft, no more than 25 kg (55 pounds) net weight of hazardous material may be
loaded in an inaccessible manner. In addition to the 25 kg limitation above, an additional 75 kg
(165 pounds) net weight of Division 2.2 (non-flammable compressed gas) may be loaded in the
same compartment. In the case of articles containing a Division 2.2 material, the 75 kg net
weight limit applies to the amount of hazardous material contained in the article.
I hope this answers your inquiry. If you have further questions, please do not hesitate to contact
this office.
Charles E. Betts
hief, Standards Development
ofHazardous Materials Standards

<<<PAGE 2>>>

Drakeford. Carolyn (PHMSA)
From: Leary, Kevin (PHMSA)
Sent: Wednesday, March 03, 2010 8:04 AM
To: Drakeford, Carolyn (PHMSA)
Subject: FW: NRT experiencing difficulty 016-12271092 RNG 2.2
Attachments: RNG 2.2 NET-wt MAX restriction01.pdf; RNG 2.2 TTL NET exceeds MAX.JPG
Importance: High l-etf[i
t3~11.~
Please this for an interp. The email and the attachments.
Kevin tjllZ ,1-of
Message ----From:
Finkenkeller, Nancy [WHQQA] .Finkenkeller@united.com> 
 5h1(Jfi I11Pare ($
To: Kel Shane (PHMSA)
Cc: Finkenkeller, Nancy [WHQQA] <Nancy.Finkenkeller@united.com> 
 Sent: Tue Mar 02 08:32:55 2010
I () - (}()$()
ect: RE: NRT experiencing di 016-12271092 RNG 2.2
~/7z.lo~
I don't have much more information for you, but NRT sent the below.
I can't the attachment to send but it is just an invoice with the same gross weight
Let me know what you find out.
We contacted Shipper "KOMATSU LTD" in this evening and obtained list,
summary sheet of said UN3l64 package and MSDS documents as attached.
But unfortunately, we could not find exclusive Net wt of Non Flammable gas contained in
this Articles.
Each pa ttl 24pcs Gross wt is shown on "ATTACHED SHEET"
far in the right corner shows ttl gross wt of contents articles.
But it is not the exclusive Net wt of Non Flammable gas I believe.
Home page of STABILUS GMBH is shown on MSDS documents.
Finkenkeller
Sr Staff Auditor
Goods
847 700-5641
From: shane.kelley@dot.gov
Sent: Tue 2/23/2010 5:58 PM
To: Finkenkeller, Nancy [WHQQA]
Subject: RE: NRT experiencing difficulty 016-12271092 RNG 2.2
Nancy,
1

<<<PAGE 3>>>

I have raised the issue to our Standards and Tech folks. The issue is whether the term
"net weight of hazardous materials" would apply to the gas or to the pneumatic articles.
Could you find out from the shipper the total content in grams of the gas only? I am
hopeful that we can resolve this by agree that the gas content is the net weight we
are concerned with likely the net weight of gas is < 75 kg. In my view the clear
intent of the Regulations is to limit the quant of material and not count the package
weight - for example a shipment of Nitrogen in cylinders would be limited based on the
net weight of Nitrogen. I'll let you know as I progress in obtaining a consensus here.
-Shane
From: Finkenkeller, Nancy [WHQQA]
Sent: Tue 2/23/2010 6:54 PM
To: Finkenkeller, Nancy [WHQQA]i Ke1 Shane (PHMSA)
Subject: RE: NRT experiencing difficulty 016-12271092 RNG 2.2
Shane,
Any advice on the UN3164 and gross weight?
thanks
Nancy
Nancy Finkenkeller
Sr Staff Rep- Auditor
Dangerous Goods
847 700-5641
From: Finkenkeller, [WHQQA]
Sent: Mon 2/22/2010 1:59 PM
To; shane.kelley@dot.gov
Cc; Finkenkeller, Nancy [vmQQA]
ect: FW: NRT experiencing difficulty 016-12271092 RNG 2.2
Shane,
Here is the shippers dec.
We are concerned with the gross/ net weights and USG 13
Nancy Finkenke1:er -OPCQA
United Airlines
Sr. Staff Auditor- Quality Assurance Airline Operations
t. 847-700-5641 7: 847-700-1684
* . .com
2

<<<PAGE 4>>>

From: Kelley, Shane (PHMSA)
Sent: Monday, February 22,2010 4:40 PM
To: Leary, Kevin (PHMSA)
Cc: pfund, Duane (PHMSA)
Subject: FW: NRT experiencing difficulty 016-12271092 RNG 2.2
Importance: High
Here's what I got from United who was referred to us by the info center. Your insights as to whether the net weight of the
article or the net weight of the gas applies would be appreciated. It seems that our intent has always been to limit the
weight of the actual material - but for listed articles it gets a bit muddy.
Shane C. Kelley
International Transportation Specialist
Office of Hazardous Materials International Standards
Pipeline and Hazardous Materials Safety Administration
U.S. Dep~ent of Transportation
Voice: 202-366-4359
FAX: 202-366-5713
From: Finkenkeller, Nancy [WHQQA] [mailto:Nancy.Finkenkeller@united.com]
Sent: Monday, February 22, 2010 2:59 PM
To: Kelley, Shane (PHMSA)
Cc: Finkenkeller, Nancy [WHQQAJ
Subject: FW: NRT experiencing difficulty 016-12271092 RNG 2.2
Importance: High
Shane,
Here is the shippers dec.
We are concerned with the grossl net weights and USG 13
Nancy Finkenkeller -OPCQA
United Airlines
Sr. Staff Auditor- Quality Assurance Airline Operations
~: 847-700~5641~: 847'700-1684
[Bl: nancyJinkenkeller@umted.com
3

<<<PAGE 5>>>

~ Shipper ~ :,~';~i~Ybill Np. 016-1227 109t NEC-1:l11 92~ •
~ ~~3~r:~~:~ MINATO-KU ' Page 1\ of 2 Pages ,.~.
:~ TOKYO, JAPAN Shipper's Ref.ottO,. Number ~
____________________~ I:
__________________~
_______.~~EF(O~ltiO_n_~_)
I: I--_~_:_~_' ~_r_:_~_;_~_·~~_~_~_~_~_~~:.,.::~'~~I:...\'_~c_~E_2~_· ~_~_80_N
__+-_.. '_'-_ •.•. _._C_:_·___
_,_'_;'_"_. ...._'_ A_ ._l 3_'_l_:_:_]~ ~
.. , •.
___
1_'_' __
;~ Two completed and signed copies.ii~ws Declaration must WARNING • ~
.~ be handed to the operator: • ~
TRANSPORT DETAILS Failure to comply in all respectS with the applicable -':~'.
Dangerous GOGds Regulations may be in breach of ~.
This shipment is within the Airport of Departure the appliuble law. subject tQ'legal penalties.
limitations prescribed for:
(delete non - applicable)
PASSENGER AND CARGO
AIRCRAFT
B;
XX'
~~c_o_~_~_:_~e_~_O_._0_3-_5_5_6~1-_2_8_39
~
NARITA
Airport of Destination : ATLANTA
Shipment type: (d~/ete/'1o/'1- applica.ble )
.1 NON· RADIOAC1IVE'l~1
NATURE AND QUANTITY OF DANG ERQUS GOODS (see sub-Section 8. 1 oflATA Dangerous Goods Regulations)
.................................................................................................. " ............ ,."" ..................................................." .... ~ ~# ............... " ........ ~ ~ ....... ~ ........ ,. ...... ~ ..... __ .... ,. .......... " ••••• " .......................... ..
· ..
· ..
· .
Dangerous Goods Identification
UN3164 ARTICLES,PRESSURIZED. 2.2
PNEUMATIC
.
,~ I hereby declare that the contentsQf this consignment are ~lIy and N LTitJe f S' mrv
.~ accurately described above .. by the proper shipping name, and are at1'~KISHr/%AWR~ER~ ~
classifiedI packaged I markeCI and labelled I placarded. and are in all PI~b~~,~~~AN FEB.12,201 0 ~
.
respects in p.rQper condition for transport according to applicable S.·g·natu.re ~
:~ international and na!ional govermmental regulations. I declare that (... warning abo",) ~ . 10..'
~
~ all of the app;licable air transport requirements have been met. c'R'"V' •

<<<PAGE 6>>>

Attachmate Accessory Manager - [UNIMATIC-1]
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AIR WAYBILL
HAZ PT ITM
PART 1 OF 1
HAZAWB/ 016NRT12271092 / RNG/ 1/ 2/
24 HOUR PHONE / 11-81-3-3583-04340/ EXT:
UN/ID
UN 3164 / RNG / NONFLAMMABLE GAS
PSN-TECH NAME
ATRICLES, PRESSURIZED, PNEWMATIC
CLASS/DIV
/ 2.2 / TI/
/ HEIGHT/
SUB RISK
/ NA
PACKING GROUP / NA
DRILL CODE
/ 2L
NUMBER OF PCS / 1
NET / GROSS WT/ 938
LBS GROSS
DESTINATION / IAD
/ SP/ NA
REMARKS
/ OVERPACK USED
ERR: RNG TOTAL WEIGHT EXCEEDS MAXIMUM
Pg=1 Row= 1 Col= 1
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