# State of Utah Department of Environmental Quality — Hazardous Materials Safety Interpretation

**Citation:** 09-0206  
**Type / status:** guidance / guidance  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2010-03-26

09-0206 response to State of Utah Department of Environmental Quality concerning 173.403, 173.443.

## Document text

<<<PAGE 1>>>

U.S. Deportment of Transportation 1200 New Jersey Ave. S.E.
Washington. D.C. 20590
Pipeline and Hazardous Material
Safety Administration
MAR 2 6 20m
Mr. Dane Finerfrock
Director
State ofUtah
Department of Environmental Quality
168 North 1950 West
Salt Lake City, Utah 84114-4850
Ref. No.: 09-0206
Dear Mr. Finerfrock:
This responds to your letter dated August 31, 2009, regarding the requirements for radioactive
contamination control in §1 73.44 3( c) and (d) under the Hazardous Materials Regulations (HMR;
49 CFR Parts 171-180), as they apply to the definition of"exclusive use" found in §1730403.
According to the information you provided, Energy Solutions, Inc., operates a low-level;
radioactive waste (LLRW) disposal facility at Clive, Utah, and has a radioactive materials
license issued by the State of Utah. You indicate that Energy Solutions, Inc., receives LLRW
from many States. You state that in most instances, Utah Radiation Control Rules mirror
regulations of the Nuclear Regulatory Commission and in cases involving transportation, you
have adopted by reference, the HMR. Your questions are paraphrased and answered as follows:
Ql. Are the provisions of § 173A43(d) ofthe HMR applicable to a lidded railcar (a closed
transport vehicle) that does not transport a Class 7 (radioactive) material?
A I. The answer is no. The provisions of § 173 A43(d) of the HMR are applicable when the
railcar is "used solely for" the transportation ofClass 7 (radioactive) material packages.
The phrase "used solely for" the transportation ofradioactive material packages does not
mean such packages always must be present on the railcar.
Q2. Are the provisions of § 1 73.443(d) ofthe HMR applicable to an empty railcar when a
company designates the railcars as "sole use" to return them to the generator, either
anticipating reuse for Class 7 (radioactive) or non-Class 7 (radioactive) material?
A2. The provisions of § 173 0443(d) ofthe HMR are applicable as long as the railcar is to be
''Used solely for" the transportation of Class 7 (radioactive) material packages, even if
occasionally no packages are on the conveyance. However, if it is known that the railcar
will no longer be ''Used solely for" the transportation of Class 7 (radioactive) material
packages, then the provisions of § 1 73.443(d) are not applicable.

<<<PAGE 2>>>

Q3. Can a railcar be designated as "sole use" during initial transport to a LLR W generator?
A3. The provisions of § I 73.443(d) ofthe HMR including the "For Radioactive Material Use
Only" marking are applicable as long as the railcar is to be ''Used solely for" the
transportation ofClass 7 (radioactive) material packages, even during initial transport to a
LLR W generator.
Q4. Ifthe railcar is marked in accordance with § 173.443(d)(2), where, when, and by whom
can and/or must the marking be removed?
A4. When the railcar is no longer ''used solely for" the transportation of Class 7 (radioactive)
material packages or does not meet the requirements of
§ I 73.443(d), the marking must either be removed or covered prior to being offered for
transportation. Removing or covering the marking is the responsibility of the offeror.
Class 7 (radioactive) material packages must be in conformance with all other applicable
requirements ofthe HMR.
Q5. Should the dose rate conversion for the survey required by §173.443( c) take into
account the contribution from any beta component?
A5. The answer is yes. The contribution from all types of ionizing radiation must be
included in the radiation dose rate determination.
Q6. Should the appropriate detection instrument selection be based on gamma emitters (deep
dose) and the beta emitters (shallow dose) or the gamma emitters only?
A6. See the answer to Question 5 above. Appropriate instrumentation must be
selected so as to include the contribution for both gamma and beta radiation.
I hope this satisfies your inquiry. Ifwe can be of further assistance, please contact us.
Sincerely,
JC0U5
Charles E. Betts
Chief, Standards Development
ftice ofHazardous Materials Standards

<<<PAGE 3>>>

State of Utah
GARY R. HERBERT
Governor
Department of
Environmental Quality
Amanda Smith
Acting Executive Director
DNISION OF RADIA nON CONTROL
Dane L. Finerfmck
Director
Ens ruM.
E§ l13. LJ.Ll3 (g.) ~tp)
~ \13. '1o~
Def;n;tJons
()q- OAJ Olo
August 31, 2009
Office of Hazardous Materials Standards
Pipeline and Hazardous Materials Safety Administration
Attn: PHH-I0
U.S. Department ofTransportation, E Building
1200 New Jersey Ave., SE.
Washington, D.C. 20590-00-1
Dear Sir or Madam:
The State of Utah, Division of Radiation,Control'ljn acco~dance~,i~h ~~ CFR 105.20(a)(2),
requests two interpretations regarding till; t).pplicatioD qf 49 qFR',I}3. A43(c) & (d), ~ they pertain
to the definition of"exclusive use" found in 49 CFR 173 A03.
Background Information: . . . ,".
. 1.,,,,
Ep.ergy$olut,ions, Inc" operates a low-Ieve~ radioactjve w,aste (Hrw) 4~sposal facility ,at Cliye, Utah.
The Company has a radioactive materials licen~y issuedby the State of Utah. In most instances,
Utah Radiation Control Rules mirror regulations from the Nuclear Regulatory Commission and in
cases involving transportation issues, we have adopted, by reference, federal Department of
Transportation regulations. EnergySolutions receives shipments of low-level radioactive wastes
from most of the States.
First Request for Interpretation
Lidded gondola railcar shipments arriving at the facility are emptied of their contents and
sometimes returned to the generator as a "sole use" (marked For Radioactive Materials Use Only)
conveyance.
Specifically:
la) Is it permissible to apply 49 CFR 173A43(d) to a lidded railcar (a closed transport vehicle)
that does not ~arry Class 7 radioactive material. EnergySolutions currently designates the railcars
as "sole use" to return them to the generator, a~ticipating reuse for Class 7 radioactive material or
non-Class 7 radioactive material.
Ib) Likewise, could a railcar be designated as "so]e u~e" by EnergySolutions in order to send it to
a llrw generator for first time use hauling radioactive waste for disposal. .
168 North 1950 West· Salt Lake City, UT
Mailing Address: P.O. Box 144850' Salt Lake City, UT 841144850
Telephone (801) 536-4250' Fax (801) 533-4097' T.D.D. (801) 536-4414
www.deq.lllah.gov
Printed on 100% recycled paper

<<<PAGE 4>>>

Page 2
lc) Can the railcar be marked "For Radioactive Material Use Only"? Ifso marked;
1d) Where, when, and by whom can and/or must the "For Radioactive Material Use Only"
marking be removed?
Second Request for Interpretation
49 CFR 173.443 (c), states in part, that after each use, a transport vehicle must be surveyed "with
an appropriate radiation detection instrument." Further, the regulation requires that a vehicle may
not be returned to service until the dose rate at each accessible surface is "0.5 mrem" per hour or
less ..." For gamma emitters, selection of an instrument, calibration, detection and dose rate
conversion is fairly straight forward. However, that is not the case for beta emitters where there
may be great variation in beta particle energy. Also, converting the dose rate, measured in the
field as mrad per hour, to mrem per hour, is practically challenging.
Specifically:
2a) Should the dose rate conversion take into account the contribution from any beta component?
2b) When selecting an appropriate detection instrument should the surveyor select based on
gamma emitters (deep dose) and the beta emitters (shallow dose) or the gamma emitters only?
We appreciate your assistance. If your need clarification or additional information, please contact
me at 801-536-4250.
Sincerely,
4J~7J.~ I
Dane LF;n;-~ \
Director

## Provenance

- Official: Yes
- Source: <https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretations/2009/090206.pdf>
- Source ID: `phmsa`
- SHA-256: `2fbe0d5ed5beb0de1bc3934e289e51870b2d9a64bb6967040a98ad1d21f3c78e`
- Retrieved: 2026-08-20T00:59:31.977Z
- Exported: 2026-08-22T19:24:08.929Z
- Document slug: `phmsa-interpretation-09-0206`

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