# Health, Environment, and Safety Arkema — Hazardous Materials Safety Interpretation

- **operation:** document
- **citation:** 13-0055
- **title:** Health, Environment, and Safety Arkema — Hazardous Materials Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 2013-09-19
- **effective on:** Not available
- **summary:** 13-0055 response to Health, Environment, and Safety Arkema concerning 173.31.
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-interpretation-13-0055.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-interpretation-13-0055.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-13-0055
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/2013/130055.pdf
**body:**

<<<PAGE 1>>>

U.S. Department
of Transportation
Pipeline and Hazardous
Materials Safety
Administration
1200 New Jersey Avenue, SE
Washington, D.C. 20590
SEP 1 9 2013
Christina Kurtz
Manager of Regulations and Packaging
Health, Environment, and Safety
Arkema
900 First Ave.
Building #2
King ofPrussia, PA 19406-1308
Ref. No. 13-0055
Dear Ms. Kurtz:
This responds to your February 25, 2013 e-mail to the Hazardous Materials Information Center
(HMIC) requesting clarification of the Hazardous Materials Regulations (HMR; 49 CFR Parts
171-180) applicable to tank car loading and unloading. I apologize for the delay in responding
and any delay it may have caused. Specifically, you ask when the pre-loading and pre-
unloading functions prescribed in§ 173.31(g)(l), (g)(2), and (g)(3) must be fulfilled, prior to
actual loading or unloading, or at the time of tank car placement at the site where it will
eventually be loaded or unloaded. Additionally, you ask if it is the carrier's or consignee's
responsibility to perform the pre-unloading functions prescribed in § 173.31 (g)( 1 ), (g)(2), and
(g)(3) at the time the tank car is placed at the unloading site by the carrier.
The underlying requirement in§ 173.31(g)(l), (g)(2), and (g)(3) of the HMR is that adequate
protection and warning be given to train and engine crews operating within a shipper or
consignee facility, such as posting warning signs, setting hand brakes, and blocking the wheels
of hazardous materials tank cars placed for loading and unloading. Further, the Federal
Railroad Administration (FRA) and PHMSA want to assure that, at the point of physical
interface between the general system of rail transportation and the facility rail system, rail crews
do not make inappropriate assumptions about the status of a particular rail car or series of rail
cars and attempt to move cars that are attached to facility storage tanks or manufacturing
processes, thereby endangering rail crew safety or adversely affecting movement along the
general system of rail transportation. Such functions must be completed prior to the actual
loading or unloading of the tank car by either the consignor or consignee, as appropriate.
Additionally, these requirements apply whether or not the carrier is present during the loading
or unloading operation.
To summarize, these requirements are not necessarily the result of a tank car being loaded or
unloaded incidental to movement but rather it's because the unloading of a tank car has the
potential to affect the safety of rail carrier personnel. Although it's not explicitly stated in the

<<<PAGE 2>>>

HMR, the protection of facility operators is a natural outcome of compliance with 173.31 (g).
Once the tank car(s) is accepted by the consignor or consignee (which could also be considered
placement for loading or unloading), the consignor or consignee must implement measures that
prevent entrance to the track on which the cars are standing, display warning signs, and prevent
the cars from moving.
I trust this satisfies your inquiry. Please contact us if we can be of further assistance.
Sincerely,
!UnJ~-
l t' T. Glenn Foster
]} Chief, Regulatory Review and Reinvention Branch
Standards and Rulemaking Division

<<<PAGE 3>>>

Drakeford, Carolyn (PHMSA)
From:
Sent:
To:
Subject:
INFOCNTR (PHMSA)
Tuesday, February 26, 2013 5:10 PM
Drakeford, Carolyn (PHMSA)
FW: §173.31 Use of tank cars
18 -ooS5
Hi Carolyn,
This caller asked for her e-mail to be forwarded as a formal letter of interpretation.
Thanks,
Victoria
From: Christina KURTZ [mailto:christina.kurtz@arkema.com]
Sent: Monday, February 25, 2013 3:54PM
To: INFOCNTR (PHMSA)
Subject: §173.31 Use of tank cars
§173.31 Use of tank cars
(g) Tank car loading and unloading. When placed for loading or unloading and before
unsecuring any closure, a tank car must be protected against movement or coupling as
follows:
Dear Sir/Madam:
Arkema Inc. is seeking clarification of the wording "placed for loading or unloading and before
unsecuring any closure"
Question:
At what point does § 173. 31(g)(l)-(3) actually become effective? When physical unloading of the car
actually begins or when the car is placed at the unloading site, regardless if unloading doesn't take
place until days later?
If the answer is "at the time the car has been placed at the unloading_ site," would it be the carrier's
responsibility if they are the ones who place the car to .the site wher~ unloading would eventually take
place? ·
Regards,
Christina KURTZ
Manager of Regulations and Packaging
Health, Environment, and Safety
610-205-7417
1

<<<PAGE 4>>>

900 First Ave.
Building #2
19406-1308 King of Prussia, PA
USA
christina.kurtz@arkema.com
2
- **truncated:** false
- **body characters:** 4685
