# AirTran Airways — Hazardous Materials Safety Interpretation

**Citation:** 07-0190  
**Type / status:** guidance / guidance  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2007-10-29

07-0190 response to AirTran Airways concerning 171.8, 173.6.

## Document text

<<<PAGE 1>>>

U.S. Department
of Transportation
1200 New Jersey Avenue, SE
Washington, D.C. 20590
ipeline and Hazardol
Administration
aterials Safel
OCT 2 9 2007
Maintenance Environmental/
Mr. Brian Badger
Reference No. 07-0190
Safety Program Manager
Hartfield Atlanta International Airport
AirTran Airways
P.O. Box 45320
Atlanta, GA 30320
Dear Mr. Badger:
staff and your September 27, 2007 letter concerning the Materials of Trade (MOTs) definition
This is in response to your September 24, 2007 telephone conversation with a member of my
and exceptions prescribed in §§ 171.8 and 173.6, respectively, of the Hazardous Materials
Regulations (HMR; 49 CFR Parts 171-180). You ask if the MOTs exception applies when your
public road in company-owned and employee-owned motor vehicles, and by aircraft if your
employees transport hazardous materials and equipment containing hazardous materials by
will be used to maintain or repair AirTran Airways aircraft and equipment. We have
employees accompany these materials to their destination. You state these materials and parts
paraphrased your questions and answered them in the order provided.
Q1. May our employees use company-owned and employee-owned motor vehicles to
transport hazardous materials and airplane parts that contain hazardous materials from an
off-site location to an airport hangar or gate under the MOTs exceptions prescribed in
items to their destination, do they qualify for the MOTs exception?
§ 173.6? If we transport these materials by aircraft and our employees accompany these
Al.
The MOTs exception applies to transportation in commerce by motor vehicle only on
public roads and highways. It does not apply to hazardous materials offered or intended
for transportation by aircraft. Therefore, provided all applicable provisions in §§ 171.8
materas and eguipment omaming awardous matrias in company-owned anardous
employee-owned motor vehicles.
When transporting these materials by aircraft, your company must package and transport
them in conformance with the HMR's general requirements for transportation by aircraft
prescribed in § 173.27, requirements for carriage of hazardous materials by aircraft
171.8
070190
1736

<<<PAGE 2>>>

prescribed in Part 175, and any additional applicable requirements specific to the
hazardous material. In addition, the HMR authorizes, with certain exceptions,
Instructions for the Transport of Dangerous Goods by Air if the hazardous material is
compliance with the International Civil Aviation Organization's (ICAO's) Technical
offered or intended for transportation by aircraft, and by motor vehicle either before or
after being transported by aircraft. These provisions are contained in new Subpart C of
Part 171 [72 FR. 25161, 5/3/07, Docket No. PHMSA-2005-23141(HM-215F)]. This
subpart incorporates and revises the HMR's provisions for the use of international
standards that were previously contained in §§ 171.11-171.12a.
Q2.
In § 171.8 of the HMR, paragraph (3) in the definition of a MOT includes a "hazardous
material, other than a hazardous waste, that is carried in a motor vehicle by a private
motor carrier (including vehicles operated by a rail carrier) in direct support of a principal
business that is other than transportation by motor vehicle." Does this mean that AirTran
Airways is considered a private motor carrier when its employees transport MOTs in
accordance with the HMR in company-owned and employee-owned motor vehicles?
A2.
The answer is yes.
I hope this satisfies your request.
Sincerely,
Hattie L. Mitchell, Chief
Office of Hazardous Materials Standards
Regulatory Review and Reinvention

<<<PAGE 3>>>

Edmonson
$ 171-8
§ 173.6
Definitions, MOTe
September 27, 2007
07-0190
Mr. Edward Mazzullo, Director
Hazardous Material Standards
1200 New Jersey Avenue, South East
U.S. DOT PHMSA
Washington, DC 20590
Subject: Interpretation of Material of Trade Exception (49 CFR, Section 173.6) and
Definition of Material of Trade (49 CFR, Section 171.8),
Dear Mr.: Mazzullo:
our maintenance operations.
Le une al, here erin of a core sed to comp a un at al rade are is Hazard
1) ip any dote mazalous aterialt Wall a be dons parted laned by a rained epiye boot
cate priy to placing the material or the rear this perso were come art are or a re
abbreviations, Material of trade means a hazardous material, other than a hazardous waste, that is
2) Also, in Section 171.8 General Information, Regulations and Definitions, Definitions and
airline industry?
regulation.
Please provide an interpretation for us that would ensure that we are complying with the intent of this
If you have any questions or need additional information please contact me at 678-254-6299.
Sincerely
Panband
AirTran Airways
Maintenance Environmental /Safety Program Manager
AirTran Airways
Hartsfield Atlanta International Airport
P.O. Box 45320
Atlanta, GA 30320

## Provenance

- Official: Yes
- Source: <https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/2007/070190.pdf>
- Source ID: `phmsa`
- SHA-256: `9d79a9731dc6043abbccea2a4e59f97b2e8822567f5e096f269ab9ea4fa1a3b9`
- Retrieved: 2026-08-20T00:59:31.977Z
- Exported: 2026-08-23T22:04:39.712Z
- Document slug: `phmsa-interpretation-07-0190`

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