# Currie Associates — Hazardous Materials Safety Interpretation

- **operation:** document
- **citation:** 18-0011
- **title:** Currie Associates — Hazardous Materials Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 2018-06-29
- **effective on:** Not available
- **summary:** 18-0011 response to Currie Associates concerning 173.4.
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-interpretation-18-0011.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-interpretation-18-0011.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-18-0011
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/docs/standards-rulemaking/hazmat/interpretations/58661/180011.pdf
**body:**

<<<PAGE 1>>>

U.S. Department
of Transportation
1200 New Jersey Avenue, SE
Washington, DC 20590
Materials Safety
Pipeline and Hazardous
Administration
JUN
2 9 2018
Barbara Konrad
Technical Consultant
Currie Associates
10 Hunter Brook Lane
Queensbury, NY 12804
Reference No. 18-0011
Dear Ms. Konrad:
This letter is in response to your January 19, 2018, letter and subsequent phone conversations
requesting clarification of the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180)
applicable to small quantities of hazardous materials. You state that your client ships machine
parts that may still have hazardous materials residue. You describe your client's
decontamination and packaging procedures for the different machine parts, noting that while
certain parts may only have surface residue, others could contain up to 1 gram or 1 milliliter of
hazardous materials. Specifically, you ask if machine parts shipped with potential hazardous
materials residue on their surface and/or inside would fall under the requirements of the HMR.
Whether these shipments fall under the purview of the HMR will depend on several factors,
including the type of material and the nature of the relationship between the material and the
parts being shipped. If the decontamination process eliminates all the hazardous materials on the
surface of the machine parts, or cleans the parts to a point where the material would no longer
meet the definition of a hazardous material, then those parts would no longer fall under the
requirements of the HMR. Machine parts containing hazardous material on the inside may be
shipped under the De Minimis exception if the shipment meets the requirements in § 173.4b.
Further, it may be possible to ship these materials as dangerous goods in equipment, machinery,
residue in components of equipment or machinery may be considered integral if the residue is
or apparatus provided the hazardous materials are integral to the equipment. Please note that
necessary to the function of the equipment, its removal would cause damage to the equipment, or
it performs some other function necessary to the equipment such that it cannot be removed from
the equipment while it is in transportation.
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
Standards and Rulemaking Division

<<<PAGE 2>>>

wolcaft
1B45
January, Ikeya CTR (PHMSA)
Exceptions
From:
INFOCNTR (PHMSA)
18-0011
Sent:
Friday, January 19, 2018 4:57 PM
To:
Subject:
Hazmat Interps
and Spare Parts
FW: Interpretation Request - Applicability of HMR to Return Shipment of Equipment
Attachments:
CurrieAssociatesLetterofinterpretation.pdf
Hello All,
Please see the below and attached request for interpretation.
Regards,
-Breanna
From: Chris Yakush [mailto:Chris@currieassociates.com]
Sent: Friday, January 19, 2018 2:53 PM
To: Kelley, Shane (PHMSA) <shane.kelley@dot.gov>; PHMSA HM InfoCenter <PHMSAHMInfoCenter@dot.gov>
Cc: Barbara Konrad <Barbara@currieassociates.com>; Tom Ferguson <Tom@currieassociates.com>
Subject: Interpretation Request - Applicability of HMR to Return Shipment of Equipment and Spare Parts
Dear Shane and HMIC,
Attached please find an interpretation request on behalf of our client, a large manufacturer of semiconductor
manufacturing equipment and spare parts. Specifically, we would like an interpretation on the applicability of the
materials which may contain trace quantities (milliliters or milligrams) of hazardous materials contamination.
Hazardous Materials Regulations (HMR) to the return shipment of equipment and spare parts exposed to hazardous
Feel free to contact us if you have any questions.
Chris
Best regards,
Christine Yakush
Currie Associates, Inc.
Vice President
10 Hunter Brook Lane, Queensbury, NY 12804
Phone: 518/761-0668 * Fax: 518/792-7781
http://www.currieassociates.com
Online Training - www.dgcomplianceonline.com
chris@currieassociates.com
Your Compliance Solution to Hazardous Materials/Dangerous Goods Transportation Services & Support
CONFIDENTIAL: UNAUTHORIZED USE OR DISCLOSURE IS STRICTLY PROHIBITED.
This information is intended to provide interpretative and authoritative information in regard to the subject matter covered
do not guarantee the accuracy or completeness of any such interpretation or information, however, nor do we warrant that
as a service to our clients and has been answered to the best of our ability based on the information provided to us. We
compliance with any advice we provide will guarantee compliance with any legal or regulatory requirements. Our
statements or opinions do not convey legal interpretation and government authorities or legal counsel should be contacted
for such a response.
1

<<<PAGE 3>>>

Currie Associates, Inc.
The Global Compliance Professionals
Training - Auditing - Consulting
January 19, 2018
US Department of Transportation
PHMSA Office of Hazardous Materials Standards
ATTN: PHH-10 East Building
Washington, DC 20590-0001
1200 New Jersey Avenue, SE
Via email: Phmsa.hm-infocenter@dot.gov
Dear Hazardous Materials Information Center,
Currie Associates, Inc. is making this request for interpretation on behalf of our Client, a large
interpretation on the applicability of the Hazardous Materials Regulations (HMR) to the return shipment of
manufacturer of semiconductor manufacturing equipment and spare parts. Specifically, we would like an
equipment and spare parts exposed to hazardous materials which may contain trace quantities (milliliters
or milligrams) of hazardous materials contamination.
Many of the parts meet the requirements of the de minimis exception in 49 CFR 173.4b and can be
shipped in that manner. However, certain parts have been exposed to hazardous materials which are not
eligible for this exception because they are in packing group I or, for transportation by aircraft, are not
authorized on a passenger aircraft.
The equipment and spare parts in question vary in design and have been classified by our Client
engineers into two broad categories:
(1) Parts which include sealed ampoules or which include an internal reservoir or chamber into
trapped; These are identified by our client as "high risk parts".
which up to 1 gram or 1 ml of hazardous material process chemical contamination may be
(2) Parts which do not include any sealed ampoules or chambers and which are highly unlikely to
contain any hazardous material contamination. Examples of these types of products include
Electrostatic Chucks and Manometers. These are identified by our client as "low risk parts".
Regardless of the category of the Part, we believe that the decontamination procedures in place for the
parts and the standard packaging used eliminate the presence of any appreciable quantity of hazardous
that these parts are not subject to the Hazardous Materials Regulations when prepared for shipment as
materials and consequently any unreasonable risk in transportation. We therefore request confirmation
outlined herein.
Decontamination Procedure
Equipment and spare parts are routinely maintained, repaired or replaced by Client Field Service
ind decontaminated using the following Standard Operating Procedure (SOP). It is our belief that thi
ngineers (FSEs). In the event a part must be replaced, the original part is removed from the equipmen
procedure ensures the removal of any appreciable quantity of hazardous materials residue or
contamination:
Certified
WBENC
Women's Business Enterprise.
10 Hunter Brock Line Cumensbury, NY 12804• Phone (518) 761-0668 • Fax (51฿) 782-T781 « mail@@cumieassocialescom + www.curfeassociates.com

<<<PAGE 4>>>

Procedure for Low Risk Parts
• Solid chemical residues are removed by brushing or scraping
• All accessible surfaces of the parts are wiped with deionized water or solvent
• Parts are dried with clean dry air or clean wipe
Additional Procedure for High Risk Parts
• Wipe tests are conducted to determine level of residual contamination (ion, pH and HF)
• All gas lines are purged with an inert gas as specified in the appropriate Product Service
• All liquid bearing lines and tanks (especially acid or base) are flushed with deionized
or Technical Manuals, but in no case for less than 30 pump and purge cycles.
water until neutral pH is verified; then the lines are emptied of remaining water.
• All liquid bearing lines are capped.
Following the decontamination procedure, the FSE checks for any visible or tangible signs of hazardous
material contamination and repeats the decontamination process if necessary until all visible or tangible
signs of hazardous material are absent.
In some cases, a customer will request a Failure Analysis of the part and it therefore cannot be
decontaminated as noted above and must be returned "as is".
purge the part with inert gas, drain all free liquid from the part and cap any outlets before it is shipped.
. In these situations, the FSE will simply
These parts are more likely to contain hazardous material residue. The exact quantity is impossible to
determine but is generally regarded as being not more than a few milligrams or milliliters.
Packaging Procedure
this packaging adequately protects the parts and meets the drop and compressive load standards in 49
All parts returned to the Client are packaged for shipment using three layers of containment. We believe
movement and are packed in:
CFR 173.4b(a)(5). All parts are cushioned (which also acts as an absorbent), protected against
1. A primary container which is sturdy, resistant to any chemical contamination that may be
present and which is capable of preventing any leakage of chemicals into the secondary
or outer packaging.
2. A secondary packaging which is typically a poly bag and
An outer packaging, typically a good quality strong fiberboard box or crate.
Hazard Communication
Every package containing a return part is accompanied by a Return Authorization (RAM) Tag which
identifies the part, all hazardous materials the part has been exposed to during its operation and a
notation regarding whether the part has been decontaminated or not. This RAM Tag is placed inside and
package of the possible trace quantities of hazardous materials that may be present. The Tag would
on the outside of the package to alert anyone coming into contact with the package or opening the
also serve to communicate important information to emergency response personnel in the event a
package is damaged in transportation.
Specific Request for Interpretation:
We believe that all of return parts our client offers for transportation, when prepared and packaged as
described herein, do not pose an unreasonable risk in transportation and therefore are not subject to the
HMR. In support of this position we offer the following information:
As precedent, we refer you to Interpretation No. 04-0285 (attached) in which your Office agreed
that trace quantities of hazardous materials do not necessarily require an item to be classified as
a hazardous material for transportation when packaged in a way to protect the item and prevent
exposure or release.

<<<PAGE 5>>>

• It is our opinion as the offeror of the part that the decontamination procedures outlined herein are
more than adequate to remove all but trace quantities of hazardous material contamination and
therefore that an unreasonable risk in transportation no longer exists for these parts.
• Even if parts are not decontaminated it is unlikely that more than a few milligrams or milliliters of
hazardous material residue would remain in the part when offered for transportation.
• Parts that may contain the residue of a hazardous material not eligible for the de minimis
contain the residue of hazardous materials eligible for the exception.
exception are no more likely to pose an unreasonable risk in transportation than those which
• Because of the multi-layer packaging procedures and of the trace amounts of hazardous
materials potentially present in the package, the potential for any unintentional release during an
incident is very low.
• In the event of package failure during transportation, the release of any detectable quantity of
(milligrams or milliliters) in the parts could cause or contribute to a fire or pose any health risk.
hazardous material is highly unlikely. It is also highly unlikely that the quantity of residue
• We believe that offering these parts as hazardous materials could even be counterproductive to
emergency responders. Marking, labeling and documenting these as hazardous materials on
shipping papers could detract attention from emergency responders and carriers dealing with
lammable fuel residue or other hazardous materials in amounts that could spill or be
packages containing aircraft components, automotive parts and machinery that contain highly
unintentionally released in transportation.
Please feel free to contact us if there are any questions regarding this request. We would be happy to
provide any additional relevant information you may need in order to reach your decision.
Sincerely,
Bachelorial
Technical Consultant
Barbara Konrad
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