# Gayston Corporation — Hazardous Materials Safety Interpretation

- **operation:** document
- **citation:** 18-0054
- **title:** Gayston Corporation — Hazardous Materials Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 2018-11-15
- **effective on:** Not available
- **summary:** 18-0054 response to Gayston Corporation concerning 173.115.
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-interpretation-18-0054.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-interpretation-18-0054.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-18-0054
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/docs/standards-rulemaking/hazmat/interpretations/70046/180054.pdf
**body:**

<<<PAGE 1>>>

U.S. Department
1200 New Jersey Avenue, SE
of Transportation
Washington, DC 20590
Materials Safety
Pipeline and Hazardous
NOV 1 5 2018
Administration
Dave Schmitz
Director of Sales & Product Development
Gayston Corporation
721 Richard Street
Miamisburg, OH 45342
Reference No. 18-0054
Dear Mr. Schmitz:
This letter is in response to your April 6, 2018, email requesting clarification of the Hazardous
Materials Regulations (HMR; 49 CFR Parts 171-180) applicable to U.S. Department of
Transportation (DOT) specification pressure vessel requirements. Specifically, you ask for
confirmation that your client's proposed cylinder as described below does not require DOT
specification packaging or marking.
You provide the following information:
• The cylinder is permanently affixed to the device and can only be disassembled using
special tools at the place of manufacturing.
• The device will only be shipped when the cylinder is empty.
• The cylinder is never sold or shipped separately from the device.
• When the device is filled by the consumer, it will only be filled with air or nitrogen.
• The cylinder will be marked with the manufacturer's "M" code.
Provided the cylinder is shipped with a gauge pressure less than 29 psig, the device would not
meet the definition of a Division 2.2 material in § 173.115(b). If the device does not meet the
definition of a hazardous material, it would not be subject to the requirements of the HMR,
including those for specification packaging or marking. However, if the cylinder is filled and in
commerce it would be subject to the requirements of the HMR including specification packages,
marking, and labeling.
I hope this information is helpful. Please contact us if we can be of further assistance.
Sincerely,
T. Menn Taster
T. Glenn Foster
Chief, Regulatory Review, and Reinvention
Standards and Rulemaking Division

<<<PAGE 2>>>

INTERPRETATION LETTERS
Requester
David Schmitz
Date Received:
4/9/2018
Company
Gayston Corporation
Tracking
18-0054
Phone
937-530-8261
Revision Date:
4/9/2018
Date Assigned
04/09/2018
Date of Letter
04/06/2018
Staff
Wolcott
First Draft Due:
4/30/2018
Section
First Draft Date
Subject
Cylinders
Concurrence
Status
PHH-10-Specialist
Status Date
4/9/2018
Sign Date
Signor
Comment
HBP
Copy to Docket
Copy to DHM-60

<<<PAGE 3>>>

Culinders
January, Ikeya CTR (PHMSA)
18-0054
From:
INFOCNTR (PHMSA)
Sent:
To:
Friday, April 06, 2018 4:51 PM
Hazmat Interps
Subject:
FW: Interpretation
Attachments:
InterpretationLetter_040518.pdf
Importance:
High
Hi Alice & Ikeya,
Attached is a request for a letter of interpretation. Mr. Schmitz spoke with Jonathon regarding his request. Let me know
if you have any questions.
Thank you,
Jodi
From: David Schmitz [mailto:david.schmitz@gayston.com]
Sent: Friday, April 06, 2018 11:46 AM
To: INFOCNTR (PHMSA) < INFOCNTR.INFOCNTR@dot.gov>
Subject: Interpretation
Importance: High
Shane,
Attached, please find our letter of interpretation that we would like your review and advise on.
Please acknowledge and confirm receipt.
Best Regards,
Dave Schmitz
Director of Sales & Product Development
GAYSTON
CORPORATION
721 Richard Street
Miamisburg, OH 45342
P: (937) 530-8261
C: (937) 902-9474
david.schmitz@gayston.com

<<<PAGE 4>>>

GAYSTON
CORPORATION
April 05, 2018
Standards Division - PHH-10
PHMSA
Office of Hazardous Materials Standards
ATTN: Director Shane Kelly
East Building
1200 New Jersey Ave., SE
Washington, D.C.20590-0001
202.366.4488
info.cntr@dot.gov
David Schmitz
Gayston Corporation
721 Richard St.
Miamisburg, OH 45342
937.902.9474
dschmitz@gayston.com
Subject: Interpretation
Shane,
Gayston is a manufacturer of cylinders under "M" code 4625. We are working with a customer on a new
cylinder opportunity and that customer has determined that the cylinder in question does not require
DOT certification because it is not going to be a transportable item. It is a CFFC cylinder and will be
holding compressed air or nitrogen.
Our customer's arguments for not requiring certification are as follows:
1.) The cylinder is permanently affixed to the device and not to be removed by consumers
2.) The cylinder can only be disassembled at the factory using special tools
3.) The equipment is only shipped with the cylinder empty of air
4.) The cylinder is never sold or shipped separately, it is to be a permanent fixture to the equipment
and sold as one unit
5.) The cylinder will be marked accordingly and will include our manufacturers code - M4625
I am including pictures of the assembly which shows the cylinder and the item to which it is affixed.
Can you please confirm this interpretation is correct?
Regards,
David Schmitz
Program Director
Gayston Corporation

<<<PAGE 5>>>

GAYSTON
CORPORATION
- **truncated:** false
- **body characters:** 4726
