# Olin Corporation — Hazardous Materials Safety Interpretation

**Citation:** 22-0087  
**Type / status:** guidance / guidance  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2024-03-28

22-0087 response to Olin Corporation concerning 180.509, 180.513.

## Document text

<<<PAGE 1>>>

U.S. Department
of Transportation
Pipeline and Hazardous
Materials Safety
Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
March 28, 2024
Mr. Daniel T. Stein
Fleet Equipment Lead
Olin Corporation
490 Stuart Road, NE
Cleveland, TN 37312-4918
Reference No. 22-0087
Dear Mr. Stein:
This letter is in response to your August 19, 2022, letter requesting clarification of the Hazardous
Materials Regulations (HMR; 49 CFR Parts 171-180) applicable to ownership of equipment
when performing repairs, alterations, conversion, and modifications of rail tank cars and service
equipment.
We have paraphrased and answered your questions as follows:
Q1. You ask whether the intent of § 180.513(b)—Responsibilities of Tank Car Facility—
pertains to obtaining the permission of an equipment owner in a scenario where there are
multiple owners of the assets (e.g., tank cars, liners, or service equipment).
A1. Under § 180.513(b),
“A tank car facility must obtain the permission of the equipment
owner before performing work affecting alteration, conversion, repair, or qualification of
the owner’s equipment.” If the tank car and/or the tank car service equipment have
multiple owners, the tank car facility would need permission from all owners of said
asset, or the owner of the affected equipment.
Q2. You ask whether the service equipment owner or the tank car owner is responsible for
establishing the interval for service equipment inspection and testing.
A2. Under § 180.509(k)(1), “Each tank car owner must ensure the qualification of tank car
service equipment at least once every ten (10) years.” As this is a minimum requirement,
any service equipment inspection and test interval that is less than 10 years is allowed
and may be initiated by the service equipment owner or the tank car owner. If either
party—the service equipment owner or the tank car owner—is aware of inspection and

<<<PAGE 2>>>

test results that indicate that the design level of reliability and safety of the service
equipment will not be met for a given inspection and test frequency, this information
must be shared between the parties involved and an appropriate inspection and test
frequency selected.
I hope this information is helpful. Please contact us if we can be of further assistance.
Sincerely,
Steven Andrews
Acting Chief, Regulatory Review and Reinvention Branch
Standards and Rulemaking Division

<<<PAGE 3>>>

Pollack
22-0087
From: INFOCNTR (PHMSA)
To: Hazmat Interps
Subject: FW: Interpretation Request: 49 CFR Part 180 Subpart F Equipment Owner Duty Clarifications
Date: Wednesday, August 24, 2022 12:51:24 PM
Attachments: image001.png
USDOT-PHMSA Request for Interpretation.pdf
See attached/below request for interpretation.
Thanks,
Jonathon, HMIC
From: Stein, Daniel T CLEV <DTStein@olin.com>
Sent: Friday, August 19, 2022 10:59 AM
To: INFOCNTR (PHMSA) <INFOCNTR.INFOCNTR@dot.gov>
Subject: RE: Interpretation Request: 49 CFR Part 180 Subpart F Equipment Owner Duty Clarifications
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 should have noted, my original message did not go through to the interpretations mailbox, so
appreciate your help in routing this request.
Daniel Stein
Fleet Equipment Lead
C: (859) 240-1753
DTStein@Olin.com
From: Stein, Daniel T CLEV
Sent: Friday, August 19, 2022 10:57 AM
To: INFOCNTR.INFOCNTR@dot.gov
Subject: FW: Interpretation Request: 49 CFR Part 180 Subpart F Equipment Owner Duty
Clarifications
Please see below & attached. Thank you.
Daniel Stein
Fleet Equipment Lead
C: (859) 240-1753
DTStein@Olin.com

<<<PAGE 4>>>

From: Stein, Daniel T CLEV
Sent: Friday, August 19, 2022 10:51 AM
To: 'hazmatinterps@dot.gov' <hazmatinterps@dot.gov>
Cc: Baxter, Christopher M MCIN <CMBaxter@olin.com>; Mills, Michael K CLEV <MKMills@olin.com>;
Vain, Brian D HOUS <BDVain@olin.com>; Castle, Angela M HOUS <AMCastle@olin.com>
Subject: Interpretation Request: 49 CFR Part 180 Subpart F Equipment Owner Duty Clarifications
Hello,
Please find the attached inquiry, and thank you in advance for your time.
Daniel Stein
Fleet Equipment Lead
(O) 423.336.4206
DTStein@Olin.com
The information contained in this e-mail message is intended only for the personal and confidential
use of the recipient(s) named above. If the reader of this message is not the intended recipient or an
agent responsible for delivering it to the intended recipient, you are hereby notified that you have
received this message and any attachments in error and that any review, dissemination, distribution,
copying or alteration of this message and/or its attachments is strictly prohibited. If you have
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## Provenance

- Official: Yes
- Source: <https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/2024-05/220087.pdf>
- Source ID: `phmsa`
- SHA-256: `eb784d3e5d97ff42b05a416d1f7ab95d03ca9b278d1d79081ef9ec325b65bc10`
- Retrieved: 2026-08-20T00:59:31.977Z
- Exported: 2026-08-23T11:54:37.568Z
- Document slug: `phmsa-interpretation-22-0087`

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