# Arcimoto, Inc. — Hazardous Materials Safety Interpretation

- **operation:** document
- **citation:** 21-0050
- **title:** Arcimoto, Inc. — Hazardous Materials Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 2021-06-10
- **effective on:** Not available
- **summary:** 21-0050 response to Arcimoto, Inc. concerning 173.185, 173.220.
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-interpretation-21-0050.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-interpretation-21-0050.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-21-0050
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/docs/standards-rulemaking/hazmat/interpretations/75371/210050.pdf
**body:**

<<<PAGE 1>>>

U.S. Department
of Transportation
Pipeline and Hazardous
Materials Safety
Administration
June 10, 2021
1200 New Jersey Avenue, SE
Washington, DC 20590
Mr. Pete Z
Director of Global Regulatory Compliance
Arcimoto, Inc.
2034 W 2nd Ave
Eugene, OR 97402-7105
Reference No. 21-0050
Dear Mr. Z:
This is in response to your May 6, 2021, email requesting clarification of the Hazardous
Materials Regulations (HMR; 49 CFR Parts 171-180) applicable to lithium batteries in electric
vehicles. Your questions are paraphrased and answered as follows:
Q1: You ask whether a lithium ion battery contained in an electric vehicle and securely
fastened to the battery holder must comply with all of the requirements in § 173.185.
A1: An electric vehicle powered by a lithium-ion battery that is transported with the battery
installed should be classed as “UN3171, Battery-powered vehicle, 9” and offered for
transportation and transported in accordance with § 173.220 of the HMR. A battery in an
electric vehicle shipped in accordance with § 173.220 must be: (1) securely fastened in its
holder/compartment; (2) protected in such a manner as to prevent damage and short
circuits; and (3) of a type that successfully passed tests in the United Nations (UN)
Manual of Tests and Criteria as specified in § 173.185.
Q2: You ask whether a lithium ion battery—one that is removed from an electric vehicle and
packed separately from the vehicle—must comply with the requirements in § 173.185.
A2: When a lithium-ion battery is removed from an electric vehicle and packed separately,
the battery must be shipped as “UN3480, Lithium ion batteries, 9” and prepared in
accordance with the applicable requirements specified in § 173.185.
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 2>>>

Andrews
21-0050
From: DerKinderen, Dirk (PHMSA)
To: Hazmat Interps
Subject: FW: Arcimoto -- 49 CFR § 173.185 -- Request PHMSA Office of Chief Counsel guidance
Date: Monday, May 10, 2021 11:03:55 AM
Attachments: image004.png
Interp request forwarded from counsel.
Thanks,
Dirk Der Kinderen
Chief, Standards Development Branch
PHMSA
202-366-4460
From: Horsley, Adam (PHMSA)
Sent: Monday, May 10, 2021 11:00 AM
To: DerKinderen, Dirk (PHMSA) <Dirk.DerKinderen@dot.gov>
Cc: Tsaganos, Vasiliki (PHMSA) <vasiliki.tsaganos@dot.gov>; Tackett, Christina (PHMSA)
<christina.tackett@dot.gov>; Ross, Robert (PHMSA) <robert.ross@dot.gov>
Subject: FW: Arcimoto -- 49 CFR § 173.185 -- Request PHMSA Office of Chief Counsel guidance
Hi Dirk,
Thanks,
- Adam
Can you please treat the questions below as a request for an interpretation?
Adam Horsley
Deputy Assistant Chief Counsel, Office of Chief Counsel
US Department of Transportation
Pipeline and Hazardous Materials Safety Administration
1200 New Jersey Avenue, S.E., Washington, D.C. 20590
Office: 202.366.8000 ◊ Facsimile: 202.366.7041
PHMSA Home | LinkedIn | Twitter | HAZMAT | OPS
PRIVILEGED & CONFIDENTIAL: This e-mail, including any attachments, is confidential, intended
only for the named recipient(s) above and may contain information that is privileged, confidential,
attorney work product or otherwise legally protected. If you have received this message in error, or are
not the named recipient(s), please immediately notify me and permanently delete this e-mail message and
any attachments from your workstation and/or network mail system.
From: Pete Z [mailto:petez@arcimoto.com]
Sent: Thursday, May 6, 2021 7:35 PM
To: Chief Counsel, PHMSA (PHMSA) <phmsachiefcounsel@dot.gov>
Cc: Regulatory Affairs <regulatory@arcimoto.com>; Gerrit Hurenkamp <gerrith@arcimoto.com>
Subject: Arcimoto -- 49 CFR § 173.185 -- Request PHMSA Office of Chief Counsel guidance

<<<PAGE 3>>>

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.
Hello PHMA Chief Counsel,
Thanks for speaking with me earlier today!
I'm doing some research to confirm or reject that fully battery-electric motor vehicles (EV)
will need to comply with 49 CFR § 173.185.
Here's my research so far:
PHMSA's Interim Final Rule (IFR) became effective on March 6, 2019, see attached
PDF "FedReg PHMSA 49 CFR 172-173 HazMat Enhanced Safety Li-ion 2019_03_06"
Test summaries of demonstrated compliance are required starting Jan 1, 2022, see
attached PDF "FedReg PHMSA 49 CFR 171-180 HazMat Harmonization With Intl Stds
2020_05_11"
EV batteries are typically shipped contained within new vehicles, but also shipped
separately to repair partners for service, warranty, and part sales. UNECE Transport of
Dangerous Goods regulations for ground, air, & marine transport, such as UN
38.3 is relevant, and was "harmonized" by above PHMSA regulations.
Typical EV battery-packs are 20,000+ Watt-hours and weigh hundreds of pounds.
For some EV, each battery contains cells or a series of cells that are connected in
parallel, all battery control mechanisms like BMS, contactors, major fuses, etc are
external to the batteries, and there are no means inside the battery of preventing reverse
current flow.
Per 173.185(a)(3), “Beginning January 1, 2022 each manufacturer and subsequent
distributor of lithium cells or batteries manufactured on or after January 1, 2008, must
make available a test summary.” The test summary requirements are listed 173.185(a)
(3)(i) to (x).
Per 173.185(a)(4), there is no stated phase-in date, so it appears that for subject cells and
batteries, “each lithium cell or battery must: (i) Incorporate a safety venting device or be
designed to preclude a violent rupture, (ii) Be equipped with means of preventing
external short circuits; and (iii) Be equipped with a means of preventing dangerous
reverse current flow (e.g., diodes or fuses) if a battery contains cells, or a series of cells
that are connected in parallel.”
Per 173.185(c) and (c)(1), “smaller cells or batteries” may be exempt if the “Size limits”
is met where “The Watt-hour (Wh) rating may not exceed 20 Wh for a lithium ion cell
or 100 Wh for a lithium ion battery.”
Per 173.185(c)(1), “After December 31, 2015, each lithium ion battery subject to this
provision must be marked with the Watt-hour rating on the outside case.”
Per 173.220(d), "Where the lithium battery is removed from the vehicle and is packed
separate from the vehicle in the same outer packaging, the package must be consigned
as “UN 3481, Lithium ion batteries packed with equipment” or “UN 3091, Lithium
metal batteries packed with equipment” and prepared in accordance with the
requirements specified in §173.185."
I've completed an iSearch.NHTSA.gov review, found three letters from NHTSA Chief
Counsel that are relevant to PHMSA 173.185, please see attached PDF.
Questions for PHMSA:

<<<PAGE 4>>>

If a Li-ion battery is intended for a motor vehicle and is not "smaller," then is
compliance to 49 CFR 173.185 required for either or both of the following conditions?
1. Where the Li-ion battery is contained in the vehicle and securely fastened in the
battery holder of the vehicle;
2. Where the Li-ion battery is removed from the vehicle and is packed separate
from the vehicle.
If PHMSA has already provided guidance to other EV motor vehicle OEM (such as
Ford, GM, Toyota, etc) in response to same/ similar questions, then can you share this
guidance with me so we don't unnecessarily cover the same ground?
I look forward to speaking with you at your very earliest convenience. Please feel free to call
me anytime.
Thank you,
Pete Z
Director of Global Regulatory Compliance
Arcimoto, Inc.
mobile 541-846-8198

<<<PAGE 5>>>

Andrews
21-0050
From: DerKinderen, Dirk (PHMSA)
To: Hazmat Interps
Subject: FW: Arcimoto -- 49 CFR § 173.185 -- Request PHMSA Office of Chief Counsel guidance
Date: Monday, May 10, 2021 11:03:55 AM
Attachments: image004.png
Interp request forwarded from counsel.
Thanks,
Dirk Der Kinderen
Chief, Standards Development Branch
PHMSA
202-366-4460
From: Horsley, Adam (PHMSA)
Sent: Monday, May 10, 2021 11:00 AM
To: DerKinderen, Dirk (PHMSA) <Dirk.DerKinderen@dot.gov>
Cc: Tsaganos, Vasiliki (PHMSA) <vasiliki.tsaganos@dot.gov>; Tackett, Christina (PHMSA)
<christina.tackett@dot.gov>; Ross, Robert (PHMSA) <robert.ross@dot.gov>
Subject: FW: Arcimoto -- 49 CFR § 173.185 -- Request PHMSA Office of Chief Counsel guidance
Hi Dirk,
Thanks,
- Adam
Can you please treat the questions below as a request for an interpretation?
Adam Horsley
Deputy Assistant Chief Counsel, Office of Chief Counsel
US Department of Transportation
Pipeline and Hazardous Materials Safety Administration
1200 New Jersey Avenue, S.E., Washington, D.C. 20590
Office: 202.366.8000 ◊ Facsimile: 202.366.7041
PHMSA Home | LinkedIn | Twitter | HAZMAT | OPS
PRIVILEGED & CONFIDENTIAL: This e-mail, including any attachments, is confidential, intended
only for the named recipient(s) above and may contain information that is privileged, confidential,
attorney work product or otherwise legally protected. If you have received this message in error, or are
not the named recipient(s), please immediately notify me and permanently delete this e-mail message and
any attachments from your workstation and/or network mail system.
From: Pete Z [mailto:petez@arcimoto.com]
Sent: Thursday, May 6, 2021 7:35 PM
To: Chief Counsel, PHMSA (PHMSA) <phmsachiefcounsel@dot.gov>
Cc: Regulatory Affairs <regulatory@arcimoto.com>; Gerrit Hurenkamp <gerrith@arcimoto.com>
Subject: Arcimoto -- 49 CFR § 173.185 -- Request PHMSA Office of Chief Counsel guidance

<<<PAGE 6>>>

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.
Hello PHMA Chief Counsel,
Thanks for speaking with me earlier today!
I'm doing some research to confirm or reject that fully battery-electric motor vehicles (EV)
will need to comply with 49 CFR § 173.185.
Here's my research so far:
PHMSA's Interim Final Rule (IFR) became effective on March 6, 2019, see attached
PDF "FedReg PHMSA 49 CFR 172-173 HazMat Enhanced Safety Li-ion 2019_03_06"
Test summaries of demonstrated compliance are required starting Jan 1, 2022, see
attached PDF "FedReg PHMSA 49 CFR 171-180 HazMat Harmonization With Intl Stds
2020_05_11"
EV batteries are typically shipped contained within new vehicles, but also shipped
separately to repair partners for service, warranty, and part sales. UNECE Transport of
Dangerous Goods regulations for ground, air, & marine transport, such as UN
38.3 is relevant, and was "harmonized" by above PHMSA regulations.
Typical EV battery-packs are 20,000+ Watt-hours and weigh hundreds of pounds.
For some EV, each battery contains cells or a series of cells that are connected in
parallel, all battery control mechanisms like BMS, contactors, major fuses, etc are
external to the batteries, and there are no means inside the battery of preventing reverse
current flow.
Per 173.185(a)(3), “Beginning January 1, 2022 each manufacturer and subsequent
distributor of lithium cells or batteries manufactured on or after January 1, 2008, must
make available a test summary.” The test summary requirements are listed 173.185(a)
(3)(i) to (x).
Per 173.185(a)(4), there is no stated phase-in date, so it appears that for subject cells and
batteries, “each lithium cell or battery must: (i) Incorporate a safety venting device or be
designed to preclude a violent rupture, (ii) Be equipped with means of preventing
external short circuits; and (iii) Be equipped with a means of preventing dangerous
reverse current flow (e.g., diodes or fuses) if a battery contains cells, or a series of cells
that are connected in parallel.”
Per 173.185(c) and (c)(1), “smaller cells or batteries” may be exempt if the “Size limits”
is met where “The Watt-hour (Wh) rating may not exceed 20 Wh for a lithium ion cell
or 100 Wh for a lithium ion battery.”
Per 173.185(c)(1), “After December 31, 2015, each lithium ion battery subject to this
provision must be marked with the Watt-hour rating on the outside case.”
Per 173.220(d), "Where the lithium battery is removed from the vehicle and is packed
separate from the vehicle in the same outer packaging, the package must be consigned
as “UN 3481, Lithium ion batteries packed with equipment” or “UN 3091, Lithium
metal batteries packed with equipment” and prepared in accordance with the
requirements specified in §173.185."
I've completed an iSearch.NHTSA.gov review, found three letters from NHTSA Chief
Counsel that are relevant to PHMSA 173.185, please see attached PDF.
Questions for PHMSA:

<<<PAGE 7>>>

If a Li-ion battery is intended for a motor vehicle and is not "smaller," then is
compliance to 49 CFR 173.185 required for either or both of the following conditions?
1. Where the Li-ion battery is contained in the vehicle and securely fastened in the
battery holder of the vehicle;
2. Where the Li-ion battery is removed from the vehicle and is packed separate
from the vehicle.
If PHMSA has already provided guidance to other EV motor vehicle OEM (such as
Ford, GM, Toyota, etc) in response to same/ similar questions, then can you share this
guidance with me so we don't unnecessarily cover the same ground?
I look forward to speaking with you at your very earliest convenience. Please feel free to call
me anytime.
Thank you,
Pete Z
Director of Global Regulatory Compliance
Arcimoto, Inc.
mobile 541-846-8198

<<<PAGE 8>>>

Andrews
21-0050a
From: DerKinderen, Dirk (PHMSA)
To: Dodd, Alice (PHMSA)
Subject: FW: Arcimoto -- 49 CFR § 173.185 -- Request PHMSA Office of Chief Counsel guidance
Date: Tuesday, May 11, 2021 11:12:52 AM
Attachments: FedReg PHMSA 49 CFR 172-173 HazMat Enhanced Safety Li-ion 2019_03_06.pdf
FedReg PHMSA 49 CFR 171-180 HazMat Harmonization With Intl Stds 2020_05_11.pdf
iSearch.NHTSA.gov - Letter from NHTSA DD.Kinderen to DHL DRV.Franco - 2020_09_15.pdf
iSearch.NHTSA.gov - Letter from NHTSA TG.Foster to TerraTrike L.Permesang - 2020_05_06.pdf
iSearch.NHTSA.gov - Letter from NHTSA DD.Kinderen to Honda PowerEquip S.Gregory - 2017_11_01.pdf
FYI….for sharing with whomever this letter got assigned to.
Thanks,
Dirk Der Kinderen
Chief, Standards Development Branch
PHMSA
202-366-4460
From: Tsaganos, Vasiliki (PHMSA) On Behalf Of Chief Counsel, PHMSA (PHMSA)
Sent: Tuesday, May 11, 2021 11:09 AM
To: DerKinderen, Dirk (PHMSA) <Dirk.DerKinderen@dot.gov>
Cc: Horsley, Adam (PHMSA) <adam.horsley@dot.gov>
Subject: FW: Arcimoto -- 49 CFR § 173.185 -- Request PHMSA Office of Chief Counsel guidance
Dirk: Adam confirmed you are logging this in. Just want to make sure you have all the
attachments. Many thanks!
Vasiliki Tsaganos
Deputy Chief Counsel, Office of Chief Counsel
US Department of Transportation
Pipeline and Hazardous Materials Safety Administration
1200 New Jersey Avenue, S.E., Washington, D.C. 20590
Office: 202.366.0639 ◊ Facsimile: 202.578.9223
PHMSA Home | LinkedIn | Twitter | HAZMAT | OPS
PRIVILEGED & CONFIDENTIAL: This e-mail, including any attachments, is confidential, intended
only for the named recipient(s) above and may contain information that is privileged, confidential,
attorney work product or otherwise legally protected. If you have received this message in error, or are
not the named recipient(s), please immediately notify me and permanently delete this e-mail message and
any attachments from your workstation and/or network mail system.
From: Pete Z [mailto:petez@arcimoto.com]
Sent: Thursday, May 6, 2021 7:35 PM
To: Chief Counsel, PHMSA (PHMSA) <phmsachiefcounsel@dot.gov>
Cc: Regulatory Affairs <regulatory@arcimoto.com>; Gerrit Hurenkamp <gerrith@arcimoto.com>
Subject: Arcimoto -- 49 CFR § 173.185 -- Request PHMSA Office of Chief Counsel guidance
CAUTION: This email originated from outside of the Department of Transportation (DOT). Do not click on links or

<<<PAGE 9>>>

open attachments unless you recognize the sender and know the content is safe.
Hello PHMA Chief Counsel,
Thanks for speaking with me earlier today!
I'm doing some research to confirm or reject that fully battery-electric motor vehicles (EV)
will need to comply with 49 CFR § 173.185.
Here's my research so far:
PHMSA's Interim Final Rule (IFR) became effective on March 6, 2019, see attached
PDF "FedReg PHMSA 49 CFR 172-173 HazMat Enhanced Safety Li-ion 2019_03_06"
Test summaries of demonstrated compliance are required starting Jan 1, 2022, see
attached PDF "FedReg PHMSA 49 CFR 171-180 HazMat Harmonization With Intl Stds
2020_05_11"
EV batteries are typically shipped contained within new vehicles, but also shipped
separately to repair partners for service, warranty, and part sales. UNECE Transport of
Dangerous Goods regulations for ground, air, & marine transport, such as UN
38.3 is relevant, and was "harmonized" by above PHMSA regulations.
Typical EV battery-packs are 20,000+ Watt-hours and weigh hundreds of pounds.
For some EV, each battery contains cells or a series of cells that are connected in
parallel, all battery control mechanisms like BMS, contactors, major fuses, etc are
external to the batteries, and there are no means inside the battery of preventing reverse
current flow.
Per 173.185(a)(3), “Beginning January 1, 2022 each manufacturer and subsequent
distributor of lithium cells or batteries manufactured on or after January 1, 2008, must
make available a test summary.” The test summary requirements are listed 173.185(a)
(3)(i) to (x).
Per 173.185(a)(4), there is no stated phase-in date, so it appears that for subject cells and
batteries, “each lithium cell or battery must: (i) Incorporate a safety venting device or be
designed to preclude a violent rupture, (ii) Be equipped with means of preventing
external short circuits; and (iii) Be equipped with a means of preventing dangerous
reverse current flow (e.g., diodes or fuses) if a battery contains cells, or a series of cells
that are connected in parallel.”
Per 173.185(c) and (c)(1), “smaller cells or batteries” may be exempt if the “Size limits”
is met where “The Watt-hour (Wh) rating may not exceed 20 Wh for a lithium ion cell
or 100 Wh for a lithium ion battery.”
Per 173.185(c)(1), “After December 31, 2015, each lithium ion battery subject to this
provision must be marked with the Watt-hour rating on the outside case.”
Per 173.220(d), "Where the lithium battery is removed from the vehicle and is packed
separate from the vehicle in the same outer packaging, the package must be consigned
as “UN 3481, Lithium ion batteries packed with equipment” or “UN 3091, Lithium
metal batteries packed with equipment” and prepared in accordance with the
requirements specified in §173.185."
I've completed an iSearch.NHTSA.gov review, found three letters from NHTSA Chief
Counsel that are relevant to PHMSA 173.185, please see attached PDF.
Questions for PHMSA:
If a Li-ion battery is intended for a motor vehicle and is not "smaller," then is
compliance to 49 CFR 173.185 required for either or both of the following conditions?

<<<PAGE 10>>>

1. Where the Li-ion battery is contained in the vehicle and securely fastened in the
battery holder of the vehicle;
2. Where the Li-ion battery is removed from the vehicle and is packed separate
from the vehicle.
If PHMSA has already provided guidance to other EV motor vehicle OEM (such as
Ford, GM, Toyota, etc) in response to same/ similar questions, then can you share this
guidance with me so we don't unnecessarily cover the same ground?
I look forward to speaking with you at your very earliest convenience. Please feel free to call
me anytime.
Thank you,
Pete Z
Director of Global Regulatory Compliance
Arcimoto, Inc.
mobile 541-846-8198
- **truncated:** false
- **body characters:** 19795
