# MISTRAS Group, Inc. — Hazardous Materials Safety Interpretation

- **operation:** document
- **citation:** 19-0073
- **title:** MISTRAS Group, Inc. — Hazardous Materials Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 2019-08-27
- **effective on:** Not available
- **summary:** 19-0073 response to MISTRAS Group, Inc. concerning 171.8, 175.75.
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-interpretation-19-0073.json
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- **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-19-0073
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/docs/standards-rulemaking/hazmat/interpretations/72171/190073.pdf
**body:**

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INTERPRETATION LETTERS
Requester
David Boudreaux
Date Received: 6/6/2019
Company
MISTRAS Group, Inc.
Tracking
19-0073
Phone
985.262.4630
Revision Date: 6/6/2019
Date Assigned
6/6/2019
Date of Letter
6/6/2019
Staff
Edmonson
Eirst Draft Due:
6/27/2019
Section
First Draft Date
Subject
Concurrence
Status
PHH-10-Specialist
Status Date
6/6/2019
Sign Date
Signor
Comment
HBP
Copy to Docket
Copy to DHM-60

<<<PAGE 2>>>

Edmonson
Dodd, Alice (PHMSA)
19-0073
Sent:
From:
Edmonson, Eileen (PHMSA)
Thursday, June 06, 2019 2:55 PM
To:
Dodd, Alice (PHMSA)
Subject:
FW: Interpretation Response #17-0114
Hello Alice,
Please process this letter for response and assign it to me.
Thank you,
Eileen Edmonson
Transportation Regulations Specialist
U.S. Department of Transportation/PHMSA
(w) 202-366-4481
(f) 202-366-7041
(email) eileen.edmonson@dot.gov
(Hazmat Info Center) 800-467-4922
(website) https://www.phmsa.dot.gov/
From: David Boudreaux <David.Boudreaux@mistrasgroup.com>
Sent: Thursday, June 6, 2019 2:51 PM
To: Edmonson, Eileen (PHMSA) <eileen.edmonson@dot.gov>
Subject: Interpretation Response #17-0114
Ms. Edmonson,
I am contacting you for an expanded interpretation to Response #17-0114, in particular, Q2 and A2.
In Q.2 it states: You ask if §175.75(e)(3) allows for an x-ray technician and his or her assistant to accompany a
piece of x-ray equipment shipped as "UN2916, Radioactive Material, Type B(U) package non-fissile-excepted"
by cargo-only aircraft.
In response, A2 stated: The answer is no. The provisions of $175.75(3)(3) only apply to the transportation of
hazardous materials carried on a single pilot cargo-only aircraft in which no person is carried on the aircraft
other than the pilot, an FAA inspector, the shipper or consignee of the material, a representative of the
shipper or consignee so designated in writing, or a person necessary for the handling the material. Based on
the scenario that you describe, PHMAS does not believe that the provisions of §175.75(e)(3) would apply to
the X-ray technician and his or her assistant.
As the question is written I believe the interpretation was correct, but not all the pertinent information was
given in the question.
The "X-Ray Technician and his or her assistant" are part of an Industrial Radiography Crew that utilized
Radioactive Materials to conduct services for our offshore clients. These personnel hand-carry the Radioactive
Materials in a Type B(U) package which is approved by the Nuclear Regulatory Commission (NRC). The
1

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Industrial Radiography Crew presents the package and Shippers Declaration of Dangerous goods paperwork to
the Heliport Dispatchers to be able to board a helicopter. Also, due to license conditions imposed either by
the NRC or an Agreement State (Louisiana DEQ), the licensee shall comply with the regulations for the physical
protection of radioactive materials. So the crew must have Unescorted access deemed by security clearance
background checks to possess and transport Radioactive Materials over a certain activity. So due to this
information, I believe that our personnel would meet the criteria of §175.75(e)(3) in two ways.
#1) Our company (MISTRAS) would be the shipper and as an employee of MISTRAS they are supplying the
Shippers Declaration of Dangerous Goods, signed by one of the personnel on the Industrial Radiography Crew,
so then by definition, they are a representative of the shipper or consignee so designated in writing as per
§175.75(e)(3).
#2) Due to the license conditions imposed either by the NRC or an Agreement State (Louisiana DEQ) for
physical protection of radioactive materials the Industrial Radiography Crew would also meet the definition of
a person necessary for handling the material.
Responthe in -omation is helpful in getting an expanded interpretation for 5175.75 te/3) in interpretation
Regards,
David
David Boudreaux
QA/QC Manager / Radiation Safety Officer
P: 985.262.4630
M: 985.414.4628
F: 985.262.4793
David.Boudreaux@mistrasgroup.com
MISTRAS
108 Lois Rd - Houma - LA 70363
MISTRAS Group, Inc.
www.mistrasgroup.com
O
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<<<PAGE 5>>>

of Transportation
U.S. Department
1200 New Jersey Avenue, SE
Washington, DC 20590
Pipeline and Hazardous
Administration
Materials Safety
AUG 2 7 2019
Mr. David Boudreaux
QA/QC Manager and
Radiation Safety Officer
MISTRAS Group, Inc.
108 Lois Road
Houma, LA 70363
Reference No. 19-0073
Dear Mr. Boudreaux:
This letter is in response to your June 6, 2019, email requesting clarification of the Hazardous
Materials Regulations (HMR; 49 CFR Parts 171-180) applicable to transporting radioactive
materials aboard cargo aircratt only. Specitically, you ask for additional clarification of question
"Q2" and answer "A2" in Letter of Interpretation Reference No. 17-0114 issued by the Pipeline
and Hazardous Materials Safety Administration (PHMSA) on February 27, 2018. We have
paraphrased your background discussion and answered your questions in the order you provided.
You state question "Q2" in Ref. No. 17-0114 concerns whether § 175.75(e)(3) permits an x-ray
technician and his or her assistant to accompany a piece of x-ray equipment shipped as
"UN2916, Radioactive material, Type B (U) package non-fissile or fissile-excepted" by cargo
aircraft only. PHMSA answered no in answer "A2," with which you agree. However, you state
the x-ray technician and his and/or her assistant are part of a larger Industrial Radiography Crew
that utilizes this equipment to conduct services for offshore clients.
You also state the Nuclear Regulatory Commission (NRC) requires that Industrial Radiographers
obtain appropriate security clearances to have unescorted access to hand-carry equipment that
contains Class 7 (radioactive) material over a certain activity level in Type B(U) packages
approved by the NRC. Further, you state that due to licensing requirements imposed by the NRC
or an Agreement State (e.g., the State of Louisiana's Department of Environmental Quality
(DEQ)), the Industrial Radiographers must comply with requirements to physically protect the
Class 7 materials and present the packages that contain this equipment and applicable shipper's
declaration of dangerous goods to the heliport dispatchers to obtain permission to board a
helicopter.
You ask whether the following two scenarios comply with § 175.75(e)(3):
S1: Our company, MISTRAS, is the shipper. The Industrial Radiography Crew are
employees of MISTRAS. MISTRAS employees supply the shipper's declaration of

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dangerous goods. The shipper's declaration is signed by one of the members of the
declaration in a location other than the certifying signature as persons "necessary for
Industrial Radiography Crew. The members of the crew are listed on the shipper's
handling the material." Is the crew member who signs the shipper's declaration
considered a representative of the shipper "so designated in writing" as prescribed in
§ 175.75(e)(3)(i)? Do the other crew members listed on the shipper's declaration also
meet the criteria for representatives of the shipper so designated in writing as prescribed
in § 175.75(e)(3)(i)?
A1:
The crew member who signs the shipper's declaration is considered a representative of
the shipper "so designated in writing." However, the crew members listed on the
shipper's declaration as necessary for handling the material who do not sign the shipper's
certification on the shipper's declaration do not perform a function of the shipper and,
therefore, are not considered representatives of the shipper so designated in writing.
S2:
Due to the licensing conditions imposed by either the NRC or an Agreement State (e.g.,
Louisiana DEQ) for physical protection of radioactive materials, does the Industrial
Radiography Crew listed on the shipper's declaration also meet the definition of a
"person necessary for handling the material" prescribed in § 175.75(e)(3)(i)?
A2:
The answer is yes, the crew members listed on the shipping paper are considered
"persons necessary for handling the material" and may be transported onboard the aircraft
with the x-ray equipment provided the conditions in § 175.75(e)(3) are met. For
clarification, the conditions for packages of hazardous materials carried on small, single
pilot, cargo aircraft are: (i) no person is carried on the aircraft other than the pilot, an
FAA inspector, the shipper or consignee of the material, a representative of the shipper or
consignee so designated in writing, or a person necessary for handling the material; (ii)
the pilot is provided with written instructions on the characteristics and proper handling
of the materials; and (iii) whenever a change of pilots occurs while the material is on
board, the new pilot is briefed under a hand-to-hand signature service provided by the
operator of the aircraft. The HMR defines "cargo aircraft only" as an aircraft that is used
to transport cargo and is not engaged in carrying passengers. This definition further
states under the HMR the terms "cargo aircraft only," "cargo-only aircraft," and "cargo
aircraft" have the same meaning. See § 171.8.
I hope this information is helpful. Please contact us if we can be of further assistance.
Sincerely,
THen Foot
T. Glenn Foster
Chief, Regulatory Review and Reinvention Branch
Standards and Rulemaking Division
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