# Veolia ES Technical Solutions, L.L.C. — Hazardous Materials Safety Interpretation

**Citation:** 07-0024  
**Type / status:** guidance / guidance  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2007-03-20

07-0024 response to Veolia ES Technical Solutions, L.L.C. concerning 172.101, 173.12, 173.22.

## Document text

<<<PAGE 1>>>

U.S. Depanment
of Transportation
400 Seventh Street, S.W.
Washington, D.C. 20590
pipeline and
Administration
Hazardous Materials Safety
MAR 20 2007
Ms. Jennifer Eberle
Ref. No. 07-0024
Veolia ES Technical Solutions, L.L.C.
One Eden Lane
Flanders, NJ 07836
Dear Ms. Eberle:
requirements in the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180)
This is in response to your February 6, 2007 letter requesting clarification of the
related to 1) the appropriate hazardous materials description for a lab pack of waste
materials prepared in accordance with § 173.12(b); and 2) the classification of subsidiary
hazards for hazardous materials that do not have those subsidiary hazards listed in
Column 6 of the § 172.101 Hazardous Materials Table (HMT) in association with the
appropriate hazardous materials description.
Your questions are paraphrased and answered as follows:
Q1. Does the prohibition for packaging a Division 6.1 Packaging Group I material under
§ 173.12(b)(3) apply to a waste material that has a Division 6.1 Packing Group I
subsidiary hazard (e.g., Waste Hydrofluoric acid, 8 (6.1), UN1790, PG I)?
Al. Yes. Section 173.12(b)(3) lists waste materials that may not be packaged or
described under paragraph (b) including a Division 6.1 Packing Group I material.
Regardless of the waste material classification as primary or subsidiary, a waste material
meeting the definition of Division 6.1 Packing Group I is prohibited from being packaged
or described under paragraph (b).
Q2. Is it assumed that the packing group assignment for the subsidiary hazard(s) listed in
Column 6 of the HMT is the same as the packing group for the primary hazard of the
material?
A2. In accordance with the precedence of hazard table in § 173.2a(b), the most stringent
Backs. For pasped to and or he masa a peden over this pickined,
as Class 3 PG I.
accordance with § 173.12(b) that contains multiple waste materials of the same hazard
Q3. May one hazardous materials description be used to describe a lab pack prepared in
class (e.g., "Waste flammable liquid, toxic, corrosive, n.o.s., 3, (6.1, 8), UN3286, PG II"
172.10/
070024
173.12 (b)
173.22

<<<PAGE 2>>>

used to describe a lab pack containing "Waste flammable liquids, n.o.s., 3, UN1993, PG
II:" "Waste flammable liquids, toxic, n.o.s., 3 (6.1), UN1992, PG II;" and "Waste
flammable liquids, corrosive, n.o.s., 3 (8), UN2924, PG II")?
A3. A generic description from the HMT may be used in place of specific chemical
names, when two or more chemically compatible waste materials in the same hazard
class are packaged in the same outside packaging. Chemically compatible materials
having the same primary hazard class, but different subsidiary hazard classes, and not
otherwise prohibited by § 173.12(b)(3), may be packaged together in the same outside
packaging.
The generic description, "Waste flammable liquid, toxic, corrosive, n.o.s., 3 (6.1, 8),
UN3286, PG II," is an acceptable generic description for materials shipped in a lab pack
when all the subsidiary hazards are present. However, when materials being shipped in a
lab pack have only the toxic or corrosive subsidiary hazards present, the generic
descriptions, "Waste flammable liquids, toxic, n.o.s." or "Waste flammable liquids,
corrosive, n.o.s." must be selected, as appropriate. Note that only those waste materials
includes the word "waste."
defined as hazardous waste in § 171.8 may be described with a proper shipping name that
Q4. May additional subsidiary hazards be included in the shipping description even
though the hazards are not shown in Column 6 of the HMT for a particular hazardous
materials description?
subsidiary hazard that is not shown in Column 6 of the HMT for a hazardous material:
44. If it is specifically determined that a material meets the defining criteria for a
description, the subsidiary hazard class or division number must be identified on the
shipping paper in accordance with § 172.202(a)(2).
Q5. Is it correct to include a Class 7 subsidiary hazard in the shipping description for a
radioactive material?
material that meets the definition of multiple hazards including a limited quan ity Class 7
A5. Yes. See A4.
Q6. When classifying a material with more than one hazard in accordance with § 173.2a,
should subsidiary hazards be considered?
A6. In accordance with § 173.22, it is the shipper's responsibility to properly classify a
hazardous material and assign it a proper shipping name from the HMT. Section
172.101(c)(12)(iii) states that if a material meets the definition of more than one hazard
class and is not specifically identified by name in the HMT, then the hazard class of the
material must be determined using the precedence criteria specified in § 173.2a. To
properly class a mixture containing hazardous components, you must analyze and test the

<<<PAGE 3>>>

entire mixture to determine its primary hazard class and if it poses any subsidiary
hazards. Please note that the mixture you describe in your letter may or may not exhibit
the hazards of one or all of its components.
Sincerely,
PARIA
ohn A Cale
office of Hazardous Materials Standards

<<<PAGE 4>>>

Derkinderen
•VEOLIA
ENVIRONMENTAL SERVICES
3172101
February 6, 2007
§173.12(b)
waste / hab Facks
Office of Hazardous Materials Standards
Mr. Edward T. Mazzullo, Director
07-0024
400 7th Street, SW
USDOT/PHMSA (DHM-10)
Washington D.C. 20590-0001
Dear Mr. Mazzullo,
receive clarification related to 1) selecting the proper generic description for a packaging prepared in
Please accept this letter as a request for a formal interpretation from your office. Veolia wishes to
assignment of additional subsidiary hazards to a shipping description when those hazards are not
accordance with the lab pack exception for waste materials provided under 173.12(b) and, 2) the
otherwise indicated in column 6 of the §172.101 Hazardous Materials Table (HMT).
Currently, Division 6.1, PG I waste materials are prohibited from being packaged under the lab pack
Question 1:
exception provided under §173.12(b).
Does this restriction also apply when the 6.1 PG I is present as a subsidiary hazard?
Example: Waste Hydrofluoric acid, 8, (6.1), UN1790, PG I
Does this material qualify for the relief provided under 173.12(b) for waste materials in lab pack
- When an entry is listed in the Hazardous Materials Table with more than one hazard, is it
packagings?
assumed that the packing group for the subsidiary hazards) is the same as the packing group
identified for the primary hazard?
A lab pack prepared in accordance with §173.12(b) contains 3 separate inner packagings. Each of the
Question 2:
follows:
inner packagings contains a different material. The proper shipping descriptions for the raterials are as
Waste flammable liquids, toxic, n.o.s., 3, (6.1), UN1992, PG II
Waste flammable liquids, n.o.s., 3, UN1993, PG II
Waste flammable liquids, corrosive, n.o.s., 3, (8), UN2924, PG II
all 3 waste materials contained within the lab pack?
Is it compliant with the HMR to assign the following single shipping description to the package to describe
Waste flammable liquid, toxic, corrosive, n.o.s., 3, (6.1, 8), UN3286, PG IL
Is it permitted to include additional hazard labels/subsidiary hazards to a hazardous materials description
Question 3:
that are otherwise not shown in Column 6 of the HMT for a shipping description, if you believe those
additional hazards to be present in the hazardous material? If so, is there a limit to the number of
Velia ES Technical Solutions, L.L.C.
1 Eden Lane

<<<PAGE 5>>>

• VEOLIA
ENVIRONMENTAL SERVICES
material?
additional hazard labels/subsidiary hazards added as long as they are applicable to the hazardous
A shipper has a single hazardous waste mixture consisting of monochloroacetic acid and carbon
Example 1 (additional hazards present in a single mixture):
tetrachloride. Because this mixture is not specifically listed by name in the HMT, he selects a generic
n.o.s. description that most accurately describes the material, 'Flammable liquid, toxic, corrosive, n.o.s..
Based on his knowledge of the waste mixture, he strongly believes this mixture also exhibits dangerous
when wet properties, therefore, he includes Division 4.3 as an additional label/subsidiary hazard to the
follows:
shipping description. The shipping description is then indicated on the packaging and shipping papers as
4.3), UN3286, PG II
Waste Flammable liquid, toxic, corrosive, n.o.s. (Monochloroacetic Acid, Carbon Tetrachloride), 3, (6.1, 8,
Example 2 (additional hazards present in a lab pack container):
material. The proper shipping descriptions for the materials are as follows:
A lab pack contains two separate inner packagings. Each of the inner packagings contains a different
Waste water-reactive liquid, corrosive, n.o.s., 4.3, (8), UN3129, PG II
Waste water-reactive liquid, toxic, n.o.s., 4.3, (6.1), UN3130, PG II
within the lab pack and indicate all subsidiary hazards present even when they are not indicated in
Is it compliant with the HMR to assign a single shipping name to describe both waste materials contained
Column 6 of the HMT for the shipping description?
Waste water-reactive liquid, corrosive, n.o.s., 4.3, (8, 6.1), UN3129, PG II
Example 3 (limited quantity radioactive materials):
material, is it correct to indicate class 7 as a subsidiary hazard in the shipping description? For example:
When describing a hazardous material that also meets the definition of a limited quantity Class 7
Waste Flammable liquid, toxic, corrosive, n.o.s., 3 (6.1, 8, 7), UN3286, PG II, Limited quantity radioactive
material
In reference to §173.2a, should subsidiary hazard classes be considered when determining the proper
Question 4:
classification of a material having more than one hazard?
Example
A hazardous waste mixture in a single packaging contains the following materials:
: 50% acmeta (43er 7, phazard casand as and aboliar hazary azard, PC I1)
mixture should be:
After using the precedence table in §173.2a(b), Veolia believes the shipping description assigned to the
Waste water-reactive solid, self-heating, n.o.s. (zinc powder, cadmium powder), 4.3, (4.2), UN3135, PG
Would it be incorrect to add 4.1 and 6.1 to the shipping description as additional subsidiary hazards?
Veolia ES Technical Solutions, L.L.C.

<<<PAGE 6>>>

OVEOLIA
ENVIRONMENTAL SERVICES
When additional subsidiary hazard labels are required for a package in accordance with 3172.402, should
Question 5:
the additional hazard(s) be included in the proper shipping name as a subsidiary hazard?
Thank you in advance for providing clarification to the questions included in this letter. Please feel free
to contact me at 973-448-4209 or jennifer. eberle@veoliaes.com if additional information is required.
Sincerely,
Jennifer Eberle
Manager, Transportation Compliance
1 Eden Lane
Veolia ES Technical Solutions, L.L.C.
jenn fer.eberle@veoliaes.com
Flanders, NJ 07836
(973) 448-4209

## Provenance

- Official: Yes
- Source: <https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/2007/070024.pdf>
- Source ID: `phmsa`
- SHA-256: `9c21ec42b5ab1b9edb390ac6b24182e7d7cd648e1fef3d1e0f727aed44c33ed6`
- Retrieved: 2026-08-20T00:59:31.977Z
- Exported: 2026-08-23T03:40:23.339Z
- Document slug: `phmsa-interpretation-07-0024`

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