# Mr. Andrew Abrams — Hazardous Materials Safety Interpretation

- **operation:** document
- **citation:** 08-0205
- **title:** Mr. Andrew Abrams — Hazardous Materials Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 2008-10-21
- **effective on:** Not available
- **summary:** 08-0205 concerning 173.315.
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-interpretation-08-0205.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-interpretation-08-0205.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-08-0205
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/080205R.pdf
**body:**

<<<PAGE 1>>>

U.S. Department
of Transportation
Pipeline and Hazardous Materials
Safety Administration
OCT 2 7 2008
1200 New Jersey Ave.. SE
Washington, DC 20590
Mr. Andrew Abrarns
76 1 West Sproul Road Unit 208
Springfield, PA 19064
Ref. No.: 08-0205
Dear Mr. Abrams:
This is in response to your August 7, 2008 letter requesting clarification of the emergency
discharge control equipment requirements provided in § 173.3 15(n) of the Hazardous
Materials Regulations (HMR; 49 CFR Parts 17 1 - 1 80). Specifically, you request
clarification of the roles performed by the Design Certification Engineer and Registered
Inspector during the assembly and installation of Smart-Hose Passive Devices. Your
questions are restated and answered as follows:
Q1: Section 1 73.3 1 5(n)(2)(ii) requires the design of the equipment to be certified by a
Design Certifying Engineer. Does the Design Certifying Engineer need to be present to
review each component of the Smart-Hose System?
A1 : No. The Design Certifying Engineer is only required to certify that the design of the
emergency discharge control equipment conforms to the performance standard in
§ 173.3 15(n)(2). There is no requirement to review each component throughout the
manufacturing process.
42: Paragraph (n)(2)(iii) requires the installation of emergency discharge control
equipment to be performed under the supervision of a Registered Inspector. Does this
mean that a registered inspector must be present during the installation and testing of the
emergency discharge control equipment (e.g. Smart-Hose)?
A2: Generally, emergency discharge control equipment must be installed under the
supervision of a Registered Inspector. "Under the supervision of' means the Regstered
Inspector must be present during installation and testing. Note, however, that
173.3 15(n)(2)(iii) includes an exception for "equipment that is installed and removed as

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part of regular operation (e.g., a hose)." A Smart-Hose is attached to a cargo tank motor
vehicle in the same way as an ordinary hose; thus, supervision of such installation by a
Registered Inspector is not necessary.
I hope this information is helpful. Please contact us if you require additional assistance.
Sincerely,
,,,,"A ' A" b
Susan Gorsky
Acting chief, Standards Development
Office of Hazardous Materials Standards

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Andrew Abrams
761 West Sproul Road Unit 208
Springfield, PA 19064
Thursday, August 07,2008
Mr. Charles Hochman
Director
Office of Hazardous Materials Technology
US Department of Transportation PHMSA
1200 New Jersey Avenue, SE Building 2"d Floor
Washington, DC 20590
Re: Letter of Interpretation -- 49 CFR 173.315
Dear Mr. Hochman
I am writing in connection with the above captioned inquiry to ask for an interpretation of
the regulations as it relates to the role of a DCE and Registered Inspector in the assembly
and installation of certain passive devices.

<<<PAGE 4>>>

Andrew Abrams
761 West Sproul Road Unit 208
Springfield, PA 19064
(iil The design for the means to automatically shut off product flow must
be certified by a Design Certifying Engineer. The certification must
consider any specifications of the original component manufacturer and
must explain how the passive means to shut off the flow of product
operates. It must also outline the parameters (e.g., temperature,
pressure, types of product) within which the passive means to shut off
the flow of product is designed to operate. All components of the
discharge system that are integral to the design must be included in the
certification. A copy of the design certification must be provided to the
owner of the cargo tank motor vehicle on which the equipment will be
installed.
(iii) Installation must be performed under the supervision of a
Registered Inspector unless the equipment is installed and removed as
part of regular operation (e.g., a hose). The Registered Inspector must
certify that the equipment is installed and tested, if it is possible to
do so without damaging the equipment, in accordance with the Design
Certifying Engineer's certification. The Registered Inspector must
provide the certification to the owner of the cargo tank motor vehicle.
-
Issue: Since the Smart-Hose System consists of the installation of a "passive device" into
the internal section of a standard hose assembly, can a Design Certifying Engineer issue a
single "one-time" certification for the system without reviewing the specific components
of each hose assembly?
We submit that this is not the intention of the DCE Certification as it relates to a
completely integrated system requiring no infield installation since the Smart-
Hose system is both designed and installed by the manufacturer. An example of
this premise would be if a Smart-Hose system were installed into an LPG hose
that is installed into NH3 service, it will not function properly as a "passive
device" due to potential product incompatibility issues yet the system could be
certified without evaluating these issues if the regulations were interpreted
otherwise.
-
Issue: Since the Smart-Hose system (or any fully installed passive device) is both
manufactured and installed by the same entity, is the intent of the regulations to require
the installation "under the supervision of a Registered Inspector" to require the
Registered Inspector to look carefully at or over; view closely and critically or examine
formally or officially the installation of the passive device and therefore must this
function be performed contemporaneously with the installation of the system? More
succinctly, can this function be performed by someone who is not present during the
installation?

<<<PAGE 5>>>

Andrew Abrams
761 West Sproul Road Unit 208
Springfield, PA 19064
Thank you for your consideration.
Sincerely,
Andy Abrams

<<<PAGE 6>>>

/ /-.-.
SMART HOSE
TECHNOLOGIES
New Hose
Test Certification
The ~mart-HoaeO" technology is a pmven hose technology designed to
counteract the hazardous effect of hose rupture or failure during fluid or gaseous
transfer operations. A11 smart-I4osetm designs, Smart-Hose'" I, smart-~ose'"l
with breakaway, SmartSfoseh II and ~rnart-~ose~"' Ill utilize the unique,
patented and patent pending designs which elbmlnates the potential for disaster
through the use of an internal cable connected to specially designed, normally
unseated valve "wedges or plungers" located on each end of the cable. In the event
of hose separation, stretching to the point of an unsafe condition or coupling-to-
separation, the valve 'kedges or plungers or flappers" are released and
antly seat stopping the flow In both dlrectlons. (Operating temp. 4 a U ~ to 1 8 0 0 ~ 1
.---._---
I certify that this hoee aseembly meets all the requlremenb of the DOT and when installed
on any MC330, MC331 or authorized non-specificatian compressed gas cargo tank will
satlsfy the requirements for the passive shut dawn feature requlred for these cargo tanks
by 49CFR 173.31 5 US DOT.
Certified By: Smart-Hose Technologies CT# 7953
- - --- .- - - - - . - - -
Design certi$rng Eng:
On the above date. Smart-Hose Technologies has inspected and tested the hose
assembly listed by serial number below.
Visual Inspection: Accepted
Test Pressure: TOO PSlG Passed
Working Pressure: 350 PSlG Passed
Hose Type:Hose, NH3- LL 3-2" X 18.6 31 6-SS,FNPT- MNPT
SOW520 Reqlstered l n s p e c t ~ ~ .. .. -
Company Owner of Hose:
Company Representative Signature:
Thls \est only represen& khat the hose has passed the deflned test on lire d a b tested, no other warranty express o r
implied is granted as a result of thii cerSfiwte. It is important that all hose be inspected and tested on a regular basis in
accordan- wirh Sman-Hose Technol "a
les Form #I 9991 'Proper Hose Use. Care and Maintenanm."
2538 S 59 St., Phlladelphia. PA 19143
Toll Free (877) 3566278 Fax (215) 730-0558
Test Cert Form #G9-9 Rev6 (March 2001)
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