# Dangerous Good of America — Hazardous Materials Safety Interpretation

- **operation:** document
- **citation:** 13-0033
- **title:** Dangerous Good of America — Hazardous Materials Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 2013-04-16
- **effective on:** Not available
- **summary:** 13-0033 response to Dangerous Good of America concerning 171.23, 171.24, 172.202.
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- **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-13-0033
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/2013/130033.pdf
**body:**

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U.S. Department of Transportation
Pipeline and Hazardous Materials
Safety Administration
1200 New Jersey Ave, S.E.
Washington, D.C. 20590
AP~ l 6 1013
Fred A Romero
Dangerous Good of America
1651 NW 681 h St., Cargo Building 706
Suite 211
Miami, FL 33152-0487
Reference No. 13-0033
Dear Mr. Romero:
This is in response to your January 11, 2013 letter to the Pipeline and Hazardous Materials
Safety Administration (PHMSA) requesting clarification of the Hazardous Materials
Regulations (HMR; 49 CPR Parts 171-180), applicable to the use of the letter "G" on shipping
papers. In your letter, you note that§ 172.202(a)(6)(vi) states that for items where "No Limit"
is shown in Column (9A) (Quantity limitations for passenger aircraft/rail) or (9B) (Quantity
limitations for cargo aircraft only) of the Hazardous Materials Table (HMT), the quantity
shown must be the net mass or volume of the material. For articles (e.g., UN2800 and
UN3166), the quantity must be the gross mass, followed by the letter "G." You also note that
in the International Civil Aviation Organization Technical Instructions (ICAO TI), as well as
the International Air Transport Association Dangerous Goods Regulations (IAT A DGR), the
letter "G" is no longer required on the shipping paper or the shippers declaration. You ask if
you must include the gross mass followed by the letter "G" as required by the HMR, or may
you exclude the letter "G" on the shipping paper as indicated in the ICAO TI and lATA
regulations.
The provisions of§§ 171.23 and 171.24 of the HMR authorize the use of the ICAO TI for
packaging, marking, labeling, classifying, and describing hazardous materials which are
transported by air and by motor vehicle either before or after being transported by air.
Therefore, if your shipment is being transported in accordance with the ICAO TI as authorized
by the HMR, the letter "G" would not be required on the shipping paper.
I hope this satisfies your request.
Sincerely,
T. Glenn Foster
Chief, Regulatory Review and Reinvention Branch
Standards and Rulemaking Division

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DANGEROUS GOODS OF AMERICA®
PO BOX 520487 + MIAMI, FL 33152-0487 USA
Phone (305) 871-3313 + Fax (305) 871-1388
E-mail: info@.dga4u.com
Web: www.dga4u.com
January 11, 2013
U.S. Department of Transportation
Associate Administrator for Hazardous Materials Safety
Pipeline and Hazardous Materials Safety Administration
1200 New Jersey Ave., SE
East Building, Second Floor
Washington, DC 20590 USA
Dear Rulemakers;
According to § 172.202 (6)(iii)(vi) For items where "No Limit" is shown in Column (9A) or
(98) of the § 172.101 table, the quantity shown must be the net mass or volume of the
material. For articles (e.g., UN2800 and UN3166) the quantity must be the gross mass,
followed by the letter "G";
In the International Civil Aviation Organization (ICAO) Technical Instructions as well as
in the International Air Transportation Association (lATA), the letter "G" is no longer
required on the shipping paper or shipper's declaration.
My question to you is if I must include the gross mass followed by the letter "G' or may I
not include the letter "G" as indicated in the ICAO and lATA regulations without
consequences?
-
~,\
Thank you for )1our prompt reply to this matter.
Sincerelyt·· .c ::··
't 1 t .
.. V1tU;,k.
L--Free(ARomer~ :%~~~uctor
Office & Warehouse Facility • 1651 NW 68TH Ave • Cargo Bldg. 706 • Suite 211
Miami International Airport • Miami, FL 33126
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