# Browning Bushman P.C — Hazardous Materials Safety Interpretation

- **operation:** document
- **citation:** 02-0236
- **title:** Browning Bushman P.C — Hazardous Materials Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 2002-12-11
- **effective on:** Not available
- **summary:** 02-0236 response to Browning Bushman P.C concerning 173.315.
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-interpretation-02-0236.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-interpretation-02-0236.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-02-0236
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/2002/020236.pdf
**body:**

<<<PAGE 1>>>

U.S. Department
of Transportation
400 Seventh St., S.W.
Washington, D.C. 20590
Special Programs
Research and
Administration
DEC 1 1 2002
Mr. Loren G. Helmreich
Ref. No. 02-0236
Browning Bushman P.C.
5718 Westheimer
Suite 1800
Houston, TX 77057-5771
Dear Mr. Helmreich:
This is in response to your August 29, 2002 letter regarding automatic shut off devices on cargo tanks
• under § 173.315 in the Hazardous Materials Regulations (HMR; 49 CFR. Parts 171-180).
Specifically, you ask if a shut off system that is certified by a Design Certified Engineer per
§ 173.315(n)(2)(ii) and installed in the hose must be installed under the supervision of a Registered
Inspector as per § 173.315(n)(2)(iii).
. The answer is yes. The device you describe requires modifications to a hose beyond regular operation
as that term is tised in § 173.315(n)(2)(iii) : Therefore, the shutoff device must be installed under the
supervision of a Registered Inspector. Once installed in the hose, however, the hose may be attached
and unattached from the cargo tank without supervision:
I hope this satisfies your request.
Sincerely,
Delmer F. Billings
Chief, Standards Development
Office of Hazardous Materials Standards'
173.315
020236
parate senses ase.

<<<PAGE 2>>>

BROWNING BUSHMAN P.C.
3173.315
C. JAMES BUSHMAN
RALPH K. BROW. G (1905-19:9)
"H'TREIMER, CUTTE 1800
LOREN G. HELMREICH
TELEPHONE (713) 266-5593
H JUSTON, TX 77057-5771
CARLOS A. TORRES
ni COUNSEL:
E-MAIL: bblgh@sbcglobal.net
FACSIMILE (713) 266-5169
MARVIN B. EICKENROHT
EUGENE N. RIDDLE
TIM COOK
INCLUDING PATENT, TRADEMARK, COPYRIGHT LAW,
DITELLECTUAL PROPERTY LAW
UNFAIR COMPETITION AND RELATED MATTERS
August 29, 2002
Director
Mr. Edward T. Mazzulo
Office of Hazardous Material Storage
U.S. DOT/RSTA/DHM10
400 7" Street Southwest
Washington, D.C.
20290
Re:
Our File: PGI-114
Passive-R4 System
Dear Mr. Mazzulo:
We represent Precision International Limited (PI), the manufacturer of a
product marketed by Squibb Taylor as the Passive-R4 System. Attached is a one-page
advertisement entitied Passive-R4 - A Look Inside, and another two-page sheet entitled
Passive-R4-D.O.T. Hose Safety. System.
the R4 System must have installation periormed under the supervision of a Registèred
Third parties have been advised by a competitor that customers that purchase
Inspector pursuant to Section 173.315(n) of the Regulations Governing Transportation
and Unloading of Liquified Compressed Gas. We are convinced this representation is
untrue, since the Passive-R4 System design is certified by a Design Certifying Engineer
under Section 173.315(n)(2)(ii), and since the equipment is instailed and removed as
part of regular operation, e.g., a hose, it is thus exempted from the installation
certification requirement of (iii). PGI has been manufacturing and selling this highly
reliable system for over 4 months in full compliance with both the letter and the spirit of
the Regulations.

<<<PAGE 3>>>

Mr. Edward T. Mazzulo
Page - 2
August 29, 2002
that the installation of the Passive-R4 System satisfies the requirements of Section
PGI requests that the Department of Transportation provide a letter indicating
173.315(n)(2). Please advise if any further information or documentation is required.
Thank you for your cooperation.
Best regards,
Loren G. Haireich
Enclosures
L.GH/rt
CC:
Spence Nimberger, PG!
Pat Hodges, Squibb Taylor (Via Fax No. (214) 357-5723
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