# Entegris — Hazardous Materials Safety Interpretation

- **operation:** document
- **citation:** 21-0091
- **title:** Entegris — Hazardous Materials Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 2021-10-19
- **effective on:** Not available
- **summary:** 21-0091 response to Entegris concerning 171.4, 173.24, 173.24a.
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- **markdown:** https://regulus.evalyn.ai/document/phmsa-interpretation-21-0091.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-21-0091
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/docs/standards-rulemaking/hazmat/interpretations/76016/210091.pdf
**body:**

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U.S. Department
of Transportation
Pipeline and Hazardous
Materials Safety
Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
October 19, 2021
Mr. James V. McManus
Entegris
7 Commerce Drive
Danbury, CT 06810
Reference No. 21-0091
Dear Mr. McManus:
This letter is in response to your September 9, 2021, letter requesting clarification of the
Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180) applicable to the transportation
of marine pollutants. Specifically, you ask for clarification of the exceptions provided for marine
pollutants in § 171.4(c)(2) and Chapter 2.10.2.7 of the International Maritime Dangerous Goods
(IMDG) Code when shipping a diluted liquid mixture of potassium permanganate. You state
that the material has been classed and described as “UN3082, Environmentally hazardous
substance, liquid, n.o.s. (contains potassium permanganate), 9, PG III” and prepared for
transportation in packagings containing a net quantity per inner packaging of 5 L or less.
We paraphrased and answered your questions as follows:
Q1. As described, you ask whether the shipment is excepted from the shipping paper
requirements specified in Subpart C of Part 172 of the HMR.
A1. The answer is yes. In accordance with § 171.4(c)(2), single or combination packagings
containing a net quantity per single or inner packaging of 5 L or less for liquids are not
subject to any other requirements of the HMR, provided the packagings meet the general
requirements in §§ 173.24 and 173.24a and the marine pollutant is not a hazardous waste,
a hazardous substance, or meet any other hazard class.
Q2. You ask whether the shipment is excepted from the documentation requirements
specified in Chapter 5.4 of the IMDG Code.
A2. The answer is yes. In accordance with Chapter 2.10.2.7 of the IMDG Code, marine
pollutants packaged in single or combination packagings containing a net quantity per

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single or inner packaging of 5 L or less for liquids or having a net mass per single or
inner packaging of 5 kg or less for solids are not subject to any other provisions of the
IMDG Code relevant to marine pollutants, provided the packagings meet the general
provisions of 4.1.1.1, 4.1.1.2, and 4.1.1.4 to 4.1.1.8.
Q3. You ask whether the shipment is excepted from the marking, labeling, and placarding
requirements of Subparts D, E, and F of Part 172 of the HMR.
A3. The answer is yes. See answer A1.
Q4. You ask whether the shipment is excepted from the marking and labeling of packages,
and placarding and marking of cargo transport units, as specified in Chapters 5.2 and 5.3
of the IMDG Code.
A4. The answer is yes. See answer A2.
I hope this information is helpful. Please contact us if we can be of further assistance.
Sincerely,
Dirk Der Kinderen
Chief, Standards Development Branch
Standards and Rulemaking Division

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Cardez
21-0091
From: INFOCNTR (PHMSA)
To: Hazmat Interps
Subject: FW: Request for Interpretation
Date: Friday, September 10, 2021 3:15:18 PM
Attachments: image001.png
image002.png
Entegris Request for Interpretation-Exceptions for Marine Pollutants.pdf
See Attached Request for Letter of Interpretation.
Thanks,
Jonathon, HMIC
From: Jim McManus <Jim.McManus@entegris.com>
Sent: Thursday, September 9, 2021 5:08 PM
To: INFOCNTR (PHMSA) <INFOCNTR.INFOCNTR@dot.gov>
Subject: Request for Interpretation
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,
In accordance with 49 CFR §105.20, Entegris is submitting the attached letter requesting a letter of
interpretation of the Hazardous Materials Regulations.
Regards,
Jim
Jim McManus
Sr. Principal Engineer
Dangerous Goods Safety Advisor (DGSA)
M 203-482-1606
T 203-207-9307
E jim.mcmanus@entegris.com
7 Commerce Drive
Danbury, CT 06810 USA
CONFIDENTIALITY NOTICE: The contents of this email message and any attachments are intended solely for the addressee(s) and
may contain confidential and/or privileged information and may be legally protected from disclosure. If you are not the intended
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ENTEGRIS PROPRIETARY AND CONFIDENTIAL – INTERNAL

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