# Thermofisher — Hazardous Materials Safety Interpretation

- **operation:** document
- **citation:** 11-0165R
- **title:** Thermofisher — Hazardous Materials Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 2017-11-28
- **effective on:** Not available
- **summary:** 11-0165R response to Thermofisher concerning 173.27, 173.4.
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-interpretation-11-0165r.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-interpretation-11-0165r.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-11-0165r
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/docs/standards-rulemaking/hazmat/interpretations/56491/110165r.pdf
**body:**

<<<PAGE 1>>>

Thermofisher
4481 Campus Drive
Kalamazoo, MI 49008
Reference No. 11-0165R
Dear Ms. Russell:
This is a revised response to your July 14, 2011 email requesting clarification of the Hazardous
Materials Regulations (HMR; 49 CFR Parts 171-180) applicable to the term "positive means of
closure." Specifically, in your email you asked what is the additional "positive means" of
closure requirement to the tape, wire, and shrink-wrap prescribed as examples in the HMR
(e.g., §8 173.4a(e)(2) and 173.27(d)) for a cap that has a tamper-evident seal ("non-backoff"
cap). You stated that the tamper-evident cap has a break-away ring such as the cap on a 20-
ounce bottle of soda or on a gallon of milk. You also stated that the non-backoff cap locks the
closure to a container to avoid unwanted loosening.
The HMR provides a non-exhaustive list of methods of applying a positive means of closure.
Upon further review, we agree that the break-away ring closure securement described in your
July 14, 2011 email could satisfy the additional or secondary positive means of closure
requirements. Thus, we are rescinding and replacing our October 18, 2011 interpretation
(11-0165) and apologize for any inconvenience this may have caused.
I hope this information is helpful. Please contact us if you have any further questions.
Sincerely,
Shane Kelley
Acting Director,
Standards and Rulemaking Division

<<<PAGE 2>>>

Figure 2A
Would this be considered "positive menas of closure"?
I have a FAA inspector that has indicated that more is required and used PHMSA Letter of Interpretation No.
11-0165 as reference.
Your assistance would be greatly appreciated.
Kind Regards,
Jay Johnson, DGSA | Regulatory Compliance Manager
SAFPAK®
Inmark$i
AN Inmark COMPANY
EXAKT-PAK®
DO SUPPLIES
AN EEN COMPANY
AN INMARK BRAND
675 Hartman Road, Suite 100 Austell GA 30168
0 770-373-3300 | d 770-373-3356 | m770-377-0205 | f 770-373-3357 | e jayi@inmarkpackaging.com
Follow us at:

<<<PAGE 3>>>

Victoria
Victoria Lehman
Hazmat Information Center (HMIC)
http://phmsa.dot.gov/hazmat/info-center
(202) 366-1035
-----Original Message-----
From: PHMSA-Feedback [mailto: PHMSA-Feedback]
Sent: Thursday, July 14, 2011 4:04 PM
To: PHMSA HM InfoCenter; PHMSA Webmaster
Subject: Hazmat Information Center Feedback: Shippers-General Requirements for Shipments
Packagings (Sections 173.1 &ndash; 173.476)
Good afternoon Mr. Charles E. Betts,
We are trying to make a determination in regards to 'postive means of closure'. I understand
that all closures (mine specifically is a screw-type/threaded) need to be secured is such a
way to prevent loosening due to vibration
or change in temperature. This can be done w/ tape,
wire, shrink wrap, etc.
What is the additional 'positive closure' requirement for a cap that has a tamper evident
seal or a cap that is classified as 'non-backoff'. The tamper evident cap has a break-away
ring like the cap on a 20oz bottle of soda or on a gallon of milk. The non-backoff cap locks
Please let me know. Thanks in advance!!
Name: Melissa Russell
Email: melissa.russell@thermofisher.com
Phone: 269-544-5632
-

<<<PAGE 4>>>

Thermofisher
4481 Campus Drive
Kalamazoo, MI 49008
Reference No. 11-0165
Dear Ms. Russell:
This is in response to your e-mail requesting clarification of the Hazardous Materials
Regulations (HMR; 49 CFR Parts 171-180) applicable to the term "positive means of
closure." Specifically, you ask what is the additional "positive means" of closure
requirement to the tape, wire and shrink-wrap as specified in the HMR (e.g., §§ 173.4a(e)(2)
and 173.27(d)) for a cap that has a tamper-evident seal ("non-backoff" cap). You state that
the tamper-evident cap has a break-away ring such as the cap on a 20-ounce bottle of soda or
on a gallon of milk. You also state that the non-backoff cap locks the closure to a container
to avoid unwanted loosening.
In addition to tape, wire and shrink-wrap, the HMR does not specify other methods of a
positive means of closure. However, it is the opinion of this Office that the tamper-evident
cap you reference does not meet the HMR positive means of closure requirement. To ensure
that the closures are held securely in place during transportation, you may wish to contact
the packaging manufacturer for additional methods to those given as examples in the HMR.
I hope this information is helpful. Please contact this office should you have additional
questions.
Sincerely,
TAlian Tista
T. Glenn Foster
Chief, Regulatory Review and Reinvention
Standards and Rulemaking Division
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