# Justin Lacy — Hazardous Materials Safety Interpretation

- **operation:** document
- **citation:** 22-0020
- **title:** Justin Lacy — Hazardous Materials Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 2022-08-04
- **effective on:** Not available
- **summary:** 22-0020 concerning 171.8, 173.120, 173.22.
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-interpretation-22-0020.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-interpretation-22-0020.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-22-0020
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/docs/standards-rulemaking/hazmat/interpretations/76696/220020.pdf
**body:**

<<<PAGE 1>>>

1200 New Jersey Avenue, SE
Washington, DC 20590
U.S. Department
of Transportation
Pipeline and Hazardous
Materials Safety
Administration
August 4, 2022
Mr. Justin Lacy
336 S. Taylor Ave.
Essex, MD 21221
Reference No. 22-0020
Dear Mr. Lacy:
This letter is in response to your March 25, 2022, email requesting clarification of the Hazardous
Materials Regulations (HMR; 49 CFR Parts 171-180) applicable to the placarding of hazardous
materials. In your email, you state that you work for an environmental cleanup company that
pumps out fuel tanks at various customer sites for residential properties and businesses. You
also state that after you pump out and clean these customer fuel tanks, you often transport—in a
vacuum truck—mixtures of either gasoline or diesel fuel mixed with water used to clean out the
fuel tanks.
You ask whether these return loads—gasoline or diesel fuel mixed with water—are considered
hazardous materials and require placarding. You further state that it has been your company's
practice not to placard these types of return loads because they have been considered “recycled
waste” or “gassy water.” Lastly, you state that the maximum capacity of the tank on your
vacuum truck is more than 119 gallons—therefore meeting the definition of a “bulk packaging”
in § 171.8 of the HMR. You ask whether these return loads—of either gasoline or diesel fuel
mixed with water—are considered hazardous materials and require placarding.
In accordance with § 173.22 of the HMR, the shipper must properly class and describe a
hazardous material. This Office does not perform the function of classifying or describing a
hazardous material. However, it is the opinion of this Office that the recovered return materials
(i.e., “recycled waste” or “gassy water”) you describe in your email may continue to meet the
defining criteria of a Class 3 flammable liquid, in accordance with § 173.120.
The gasoline and/or diesel fuel does not mix with water and may retain their physical properties
that make them hazardous materials under the HMR—including the respective flash points of
gasoline and diesel fuel. In addition, the capacity of the tank on your vacuum truck is more than
119 gallons—therefore meeting the definition of a “bulk packaging” in § 171.8 of the HMR. In
this scenario, the recovered return materials would be subject to the placarding requirements of
Subpart F of Part 172 of the HMR. Since the recovered return materials may require placarding,

<<<PAGE 2>>>

as described under this scenario, the motor vehicle driver would need a commercial driver’s
license that is properly endorsed in accordance with 49 CFR 393.93 of the Federal Motor Carrier
Safety Regulations.
I hope this information is helpful. Please contact us if we can be of further assistance.
Sincerely,
T. Glenn Foster
Chief, Regulatory Review and Reinvention Branch
Standards and Rulemaking Division

<<<PAGE 3>>>

Larson
22-0020
From: Foster, Glenn (PHMSA)
To: Subject: Date: Dodd, Alice (PHMSA); Hillman, Kenetha CTR (PHMSA)
FW: Fw: J. J. Keller & Associates - Placarding
Wednesday, March 30, 2022 9:19:00 AM
Alice and Kenetha,
Can one of you have the below inquiry checked in as a request for a LOI and assign it to the next
Specialist in the rotation, please?
Thanks,
Glenn
From: Bomgardner, Paul (FMCSA) <paul.bomgardner@dot.gov>
Sent: Wednesday, March 30, 2022 8:01 AM
To: Foster, Glenn (PHMSA) <Glenn.Foster@dot.gov>
Subject: FW: Fw: J. J. Keller & Associates - Placarding
Hi Glenn:
I think that this question needs to go through PHMSA for an official answer. See below from Justin
Lacy. In my mind, I think that the short response is that Justin’s concerns are justified, and whether
or not the waste that they are transporting is hazardous or not depends on the flashpoint of the
mixture. They would have to test the materials according to 49 CFR Sections 173.120 and 173.121.
Plus, they need to check on the exceptions for Class 3 materials in Section 173.150.
But, I might be off the mark, so I thought that I would send to you guys.
Regards,
Paul
From: Williams, Crystal (FMCSA) <Crystal.Williams@dot.gov>
Sent: Wednesday, March 30, 2022 7:44 AM
To: Bomgardner, Paul (FMCSA) <paul.bomgardner@dot.gov>
Subject: FW: Fw: J. J. Keller & Associates - Placarding
Hi Paul!
Please see the question below. It’s about placarding and I think may belong to you guys. please let me know – thanks!!
If not
Crystal
From: Baczara, Bohdan (OST) <Bohdan.Baczara@dot.gov>

<<<PAGE 4>>>

Sent: Friday, March 25, 2022 10:47 AM
To: Williams, Crystal (FMCSA) <Crystal.Williams@dot.gov>; Price, Bryan (FMCSA)
<bryan.price@dot.gov>
Subject: FW: Fw: J. J. Keller & Associates - Placarding
Good morning,
I think this belongs to FMCSA. If so, can you forward to the appropriate office for response? Thx.
From: Justin Lacy <justinvlacy@gmail.com>
Sent: Friday, March 25, 2022 10:22 AM
To: ODAPCWebMail <ODAPCWebMail@dot.gov>
Subject: Fwd: Fw: J. J. Keller & Associates - Placarding
CAUTION: This email originated from outside of the Department of Transportation (DOT). Do not click on links or
open attachments unless you recognize the sender and know the content is safe.
I am forwarding this email to provide understanding my questions regarding these circumstances. I
have reached out to a few different reputable resources but have not been able to get a
response that addresses this. This circumstance is a very normal and popular procedure within the
industry so my inquiry comes from an honest and desire to understand fully what the protocol
should be. I am now reaching out to this agency because it handles transportation issues and
regulations. We are located in the Maryland / DC area if this helps.
---------- Forwarded message ---------
From: Justin Lacy <jlay1@yahoo.com>
Date: Wed, Mar 23, 2022, 6:44 AM
Subject: Fw: J. J. Keller & Associates - Placarding
To: Justin Lacy <justinvlacy@gmail.com>
----- Forwarded Message -----
From: Justin Lacy <jlay1@yahoo.com>
To: J. J. Keller & Associates <support+id1721@jjkeller.zendesk.com>
Sent: Wednesday, March 23, 2022, 06:43:12 AM EDT
Subject: Re: J. J. Keller & Associates - Placarding
Has there been any follow up to my more recent attempt at clarification on these
matters?
On Saturday, March 19, 2022, 08:53:31 AM EDT, Justin Lacy <jlay1@yahoo.com> wrote:
Thank you for your quick response, I am sorry but it didn't really answer my
questions. I am a CDL driver who works for an environmental company. We do a lot
of spill clean up and fuel transfers. Often times we are called to pump out homeowner

<<<PAGE 5>>>

tanks, fuel stations, dealership tanks, found storage tanks on lots being excavated.
My question is for placarded loads over 119 gallons. The popular consensus that
seems to run throughout the industry is that recovered diesel is considered a recycled
"waste" and therefore does not need to be placarded. An example of this scenario
would be I get a call to pump a 1000 gallon diesel tank at a car dealership and we
have to pressure wash and clean it, all in the same load so that the tank can be
removed and terminated. At the end of the day, my vac truck has 700 gallons of
diesel and 152 gallons of wash water mixed. Total 852 gallons. My question is, does
this load need to be placarded. When I raise this concern, I am always told that we do
not need to placard such loads because they are being classified recycled waste. I
believe the reason being is that this could pose an issue for the non haz drivers who
transport these materials.
The other half of my question was similar but for gasoline. We often pump and
transport loads of gasoline from fuel stations. Many times it could be mostly water but
some gas mixed in. I could pump 100 gallons of water and then 50 gallons of gas. In
this case the popular consensus is to transport it as "gassy water" to avoid the
placarding. All of these loads are also carried under a "non hazard" waste manifest
for transport, to which I have also raised questions about. My arguments have always
been to placard these loads because oils separate to the top of the loads and the
volume is just the same. Beings that the vapors emit from the top of the load still,
resulting in the same circumstances. I know this is a lengthy response but I have
been concerned about this practice since I have been in the industry when I started
more than 15 years ago. I really appreciate your time and consideration towards my
concerns. I have asked around within the industry and most answers come from
people who do not know the nuances of the regulations or have an interest in the
company's side of continuing doing business the way they have always done it.
On Friday, March 18, 2022, 09:21:11 AM EDT, Heather N. (J. J. Keller & Associates)
<support@jjkeller.zendesk.com> wrote:
Hi jlay1,
Our subject matter experts have responded to your Expert Help request; you can find the response
below. If you have follow-up questions or comments, please feel free to reply to this email.
Heather N. (J. J. Keller & Associates)
Mar 18, 2022, 8:21 AM CDT
Hi Justin,
Thanks for your question.
A container or a tank is non-bulk if the capacity is 119 gallons or less. A
container or a tank is considered bulk if its capacity is greater than 119

<<<PAGE 6>>>

gallons.
For the gasoline, it will depend on the capacity of the tank and whether it has
been "sufficiently cleaned of residue and purged of vapors to remove any
potential hazard" as required in 172.514. This PHMSA interpretation speaks to
what that means. If in bulk and it has been cleaned and purged, no placards
required. If not, then it is treated as if it was full and would require placards.
If in non-bulk, then there are two exceptions that might come into play -
172.504(d), which says, "(d) Exception for empty non-bulk packages. Except
for hazardous materials subject to § 172.505, a non-bulk packaging that
contains only the residue of a hazardous material covered by Table 2 of
paragraph (e) of this section need not be included in determining placarding
requirements." And also the general placarding exception in 172.504(c), which
says that placards aren't required for Table 2 materials less than 1,001 pounds
gross weight. Placards likely not required in this situation.
Here's the regulation regarding placarding and whether a bulk package
requires placards if it contains residue--
§ 172.514 Bulk packagings.
(a) Except as provided in paragraphs (c) and (d) of this section, each person
who offers for transportation a bulk packaging which contains a hazardous
material, shall affix the placards specified for the material in §§ 172.504 and
172.505.
(b) Each bulk packaging that is required to be placarded when it contains a
hazardous material, must remain placarded when it is emptied, unless it -
(1) Is sufficiently cleaned of residue and purged of vapors to remove any
potential hazard;
(2) Is refilled, with a material requiring different placards or no placards, to
such an extent that any residue remaining in the packaging is no longer
hazardous; or
(3) Contains the residue of a hazardous substance in Class 9 in a quantity
less than the reportable quantity, and conforms to § 173.29(b)(1) of this
subchapter.

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Regarding the diesel, diesel in a bulk package (a container with a capacity that
exceeds 119 gallons) requires placards. If diesel is in a non-bulk container
(119 gallons or less), it may be able to be reclassified as a combustible liquid.
Combustible liquids in non-bulk packagings are exempt from all hazardous
materials regulations. This article we have helps explain diesel fuel
requirements - When does diesel fuel require placards?
I hope this information helps clarify the requirements! Please let me know if
you have any other questions.
Heather - J. J. Keller Subject Matter Expert
This email is a service from J. J. Keller & Associates. Delivered by Zendesk
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