# International Compliance Center — Hazardous Materials Safety Interpretation

**Citation:** 98-0546  
**Type / status:** guidance / guidance  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 1998-01-29

98-0546 response to International Compliance Center concerning 173.187.

## Document text

<<<PAGE 1>>>

of Transportation
U.S.Department
Washington, D.C.
400 Seventh Street, S.W.
20590
Special Programs
Research and
Administration
JAN 2 g 1998
Mr. Dwight Baker
Chemical Engineer
International Compliance Center
205 Matheson Blvd E. Unit 7'
L4Z 1X8
Mississauga, Ontario, Canada
Dear Mr. Baker:
This is in response to your letter dated October 22, 1997, requesting clarification on the
Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180). Specifically, you ask if a
"RingLok" (a plastic circular ring) used to reinforce the seal of a paint can lid meets the
requirement for a positive (not friction) means of closure as specified in § 173.187(a) of the
HMR.
Based on the photographs and sample paint can with a "RingLok" you provided, it is the
opinion of this Office that the "RingLok" meets the requirement for a positive (not friction)
means of closure as specified in § 173.187(a).
I hope this answers your inquiry. If you need additional assistance, do not hesitate to contact
uS.
Sincerely,
Dilme Hilling's
Delmer F. Billings
Office of Hazardous Materials Standards
Chief, Regulations Development
...-

<<<PAGE 2>>>

INTERNATIONAL COMPLIANCE CENTER LTD.
December 9, 1997
DEBBIE BOOTHE
Research Special Programs
Materials Standards
Administration, Office Hazardous
DHM-10
400 7th St, Southwest
Washington, D.C. 20590
D. Boothe,
As per our conversation during Dec 9 th, 97, I am seeking a written interpretation for a passage
of the 49 CFR.
I wish to know if a RingLok ( a plastic circular ring) used to reinforce the seal that a paint can lid
has with a can, meets the definition of a positive means of closure as per part 173.187 (a) of the
49 CFR.
The information you requested, and that which is enclosed, are photographs of our paint can with
the RingLok seal. The pictures go back to 1994 and deal with official third party UN package
performance tests (Distribution Dynamics Labs), as well as ISTA tests.
Your earliest attention is deeply appreciated!
From the Desk of,
Dwight Baker
Chemical Engineer
Intexnational Compliance Center
205 Matheson Blvd E. Unit 7
L4Z 1X8
Mississauga, Ont, Canada.
ONTARIO:
NOVA SCOTIA:
QUEBEC:
HOUSTON:
NEW YORK:
Tel.: (713) 722-0023 Fax: (713) 722-0026
Tel.: (716) 283-0002 Fax: (716) 283-0119

<<<PAGE 3>>>

Boothe
File: 1731187(9)
50: 341
INTERNATIONAL COMPLIANCE CENTER LTD.
)ctober 22, 1997
DIANE LAVALLE
Research Special Programs
Administration
400 7th St, Southwest
Washington, D.C. 20590
D. Lavalle,
As per our conversation during the week of Oct 14 th, 97, I am seeking a written interpretation
for a passage of the 49 CFR.
I wish to know if a RingLok ( a plastic circular ring) used to reinforce the seal that a paint can lid
has with a can, meets the definition of a positive means of closure as per part 173.187 (a) of the
49 CFR.
As per our earlier conversation you had indicated that it does meet the definition.
Your earliest attention is deeply appreciated!
From the Desk of,
Dwight Baker
Chemical Engineer
205 Matheson Blvd E. Unit 7
International Compliance Center
L4Z 1X8
Mississauga, Ont, Canada.
ONTARIO:
NOVA SCOTIA:
QUEBEC:
el.: (905) 890-7227 Fax: (905) 890-70
el.: (514) 636-8146 Fax: (514) 636-35
HOUSTON:
NEW YORK:
Tel.: (902) 468-8885 Fax: (902) 468-8886
el.: (716) 283-0002 Fax: (716) 283-011
el.: (713) 722-0023 Fax: (713) 722-002

<<<PAGE 4>>>



<<<PAGE 5>>>

ISTA PASSEA
NO LEAKAGE
NS Gale
ICC

<<<PAGE 6>>>

PROFORMA INVOICE
MAME AND ADDRESS OF EXPARTER
PROFOBMA INVOICE-
(I.S. Customs Clearance By
FORM 1007
Icc La.
205 Mathesin Shird. E., # 7
HEL
REFERENCE NO.
Carr
Quality Worldwide Logistics
Mississanga, Ontario, L42 1x8.
1600 W. Lafagette. Detroit, Mh,18216 (313) 965-1540
CORPORATE HEADQUARTERS
PAGE
SOIR TO (IF DIFFERENT FROM SHIP TO)
/
OF
PAGES
/
Rehe Haged again endearin
i.
DHM-lo, 400 7tn St. SouthWest
Washingten, DE, 0590.
ORIGIN (COUNTRY/PROVINCE)
Attu:- Debbie Asotte.
canada Ontario
DESTINATION (COUNTRY/STATE)
TERMS OF SALE - DELIVERY - PAYMENT, ETC.
USA/PC
FAMIY ANT
DE TINATION
PIL PUSTOMS CHIARS TO
1 oR
I CAL CARRIE!!
US
CONSIGNEE
UPS
NOTIFY
BAT TO THE HER ACTIN NE,
• FINDS
INTCOM205
FORE N
RENTSO I
COND
SART
FRIES CARER
COMTRY
US RETURNED GOODS
INVOICE DATE
(CEE DECI ARATION BELOW • J OTHER
A'
PORT OF ENTr.
12/09/97
DATE OF SALE
IMPOSED
COUNIRY
GI: *
FOI U.S CUITOMS CLEARANCE
EXC INGE RATE
CURRENCY OF SALE
12/09/97
ORKC-11
MARKS AND NIMBERS NUMBIR ANI KIND OF LICKAGES, DESCRIPTION OF SHIPMENT
Box.
GROSS WEIGHT
D SUBAGE
HEÇES/PACKATES
-
DE RIPTION
2
ebs.
USA.
/ GALLON CAIN-
WEKHT
INV UNIT OTY.
POICE UNT PRIC
INVOICE TOTAL T
METAL CAN SLID
WITH A
RINGLOK.
10-00.
GOODS
DilLY SENT FOR
TESTING
PURPOSE ONLY.
VALUE SHIWN IS ONLY
FOR
CUSTOM PURPOSES.
EXP # M -0859 DIAID. 29
BIN / SHIPPER #
515-
30
DECLARATION BY FOREIGN
SHIPPER
ABOVE FICES INFARPE
BROKERAGE
FREIGHT
er manufacture of the United States: That the/•
-declare hal the articles herein
alug exceeds ($1200.00)
19
that they are relur d wi hout fing been advanced in value or
exported from the United Sial from W*S 1 of
ay knowledge and betel be growth, produce
SIGNATURE
rIGHT CHARGISS -
TOTAL
"HIPPER
improved in condilion. by any process of manulacture or olhey means.
wand oor about
COLICE
LEWER
NGEXPRESS
INDE OF TRANSPORTATION FROM PI INT (FE • E•11
MCLI" • 1'
CHANTED
CONTI
NON DOC
STARTING
YES J
select UPSUE
paruan.
IXPORT
UPS 3 Day Select™
3433
5915 798
MATE -
MESTIC
BRIGHT
CONTAINER
lasdeep
ILARGrS
ASSISTS
AruT
INTRANCE
INVOICE
TOTAL
i,.

<<<PAGE 7>>>

P.CTE.
MADE IN BELGIUM
01,9-
20%
XR=9A
0 151-J
a15ZE
53.-
62
1 -888-442-928
zira
L0166-
01752-
017001
A=
3.7-
307
_R=35
R:15~
2,6:
26 MAR '97 18:32 PLASTUNI NY SA
19,4
12,2.~
R:20
JATÚM: 26-3-97
/SCHAAL: 16
PROJECT
GEWIC+T:42 gr. MATER E: L
PLAN NP : 397384

<<<PAGE 8>>>

Distribution Dynamics Labs, Inc.
Drop Test (continued)
*: İ.C.C. (TOR-80)
1x1 Gallon Paint Can
DDL # 960725
..SIDE DROP
Procoon 735/50%
1.8 METERS
• R T
1: :
LONG SIDE DROP
• DDL# 96072
.C.C. (TOR-80
1x1 Gation Paint Can
1.8 METERS
END DROP
Proconitoning 7397/150%
!
SHORT SIDE DROP (END)
12
Report #960725

<<<PAGE 9>>>

INTERNATIONAL COMPLIANCE CENTER LTD.
M001/003
Attention: DEBORAH BOOTH
Co. Name:ICC
FAX No. (202) 366-8700
From:DWIGHT BAKER
Date: Nov21, 97
MISSISSAUGA
No. of pages including cover sheet: 3
Message:
MERE IS A SPEC.
SHEET ON THE RINGLOK, AS WELL.
AS A PICTURE SHOWING REPRESENTATION
ON ONE OF OUR PACHAGES
11/21/97
•IF YOU DO NOT RECEIVE ALL THE PAGES CALL (905) 890-7227
*ONTARIO:
QUEBEC:
NEW YORK:
NOVA SCOTIA:
TEXAS:
Niagara Falls, NY
Tel.: (802) 468-8885
Tel.: (716) 283-0002 Fax: (719 243-0119

<<<PAGE 10>>>

11/21/97
15:14
28058907070
ICC MISSISSAUGA
2002/003
:.
:
6x100
DOLE
TOP DROP
LC.C. (TÓR-30)
4x 1 Gelon Pai Cans
DOL # 900725
SOTTOM DROF
Preconditioning @7395150%
1.2 METERS
... ; -
183... ".. "
BOTTOM DROP
11
Report #960725B

<<<PAGE 11>>>

"..
#003/003
01445.
MADE IN BELGIUM
0169-
20 %g
r.á'c
0151-
a1525
53
62 .
1-888-44/2-2658
0 166 -
ICC MISSISSAUGA
BacK
MLASTU1I ISY SA
20'%
-Aals»
29058907070
1,h.
*yr 18:37
15:15
26 MAR
JATUM:26-3-97
SCHAI
11/21/97
PROJECT
GEWICHT:42 g.e
MATER
PLAN NR: 397366

<<<PAGE 12>>>

INTERNATIONAL COMPLIANCE CENTER LTD..
J:
Attention: DEBORAH BOOTH
I. C. C.
Co. Name:ICC
FAX No. (202) 366-8700
From: DWIGHT BAKER
Date: Nov21,97
7070
No. of pages including cover sheet: 3
890
Message:
MERE SÀ SPEC
905
SHEET ON THE RINGLOK ,AS WELL
AS A PICTURE SHOWiNG REPRESENTATION
ON ONE OF OUR PACHAGES
38
15:
11/21
IF YOU DO NOT RECEIVE ALL THE PAGES CALL (905) 890-7227
205. Matheson Bud E, 57, Mississauga, Ontacio. LAZ 1XB. Tol: (005) 000-7227 Fax: 19857-896-7070-
86 Lindsay Avonue,
Quebec
HOP 2T8 Tel: (514) 836-8145 Fax: (514) 836-3522
•2150 Libeity Drive,
10620 Stabbins Circle, Sude D. Houston,
T7o43 Tel: (13 22-0022 Fax: (713 7220025

<<<PAGE 13>>>

MADE IN BELGWM
0163-
P.zi2
20%
0151.
CUStE
I. C.C. LTD
62 .
zir3
7070
1-888-442-0
890
905
11753-
PLASTUNI MY SA
30°.
62-
Ral5
R.35.
19.6
12.
'97 11/21 15:39
18:32
26 MAR
JATÚM: 26-3-93
SCHAA
PROJECT
GEWICHT:424
MATER!
PLAN.NR: 797364

<<<PAGE 14>>>

'97 11/21 15:41
* 985 898 7078
I. C.C. LTD
03
**..
::
Drop
4x1 Gel
1.2%
TOP
TOP DROP
I.C.C. (TOR-80
DDL # 800725
BOTTOM DRON
onditioning @79*F150%
1.2 METERS
BOTTOM DROP
11
:
Report #960725B

## Provenance

- Official: Yes
- Source: <https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/1998/980546.pdf>
- Source ID: `phmsa`
- SHA-256: `423274946ad8fae5c73af4b904aa227cbbc4690b758a5e03cac68d772b5d4c68`
- Retrieved: 2026-08-20T00:59:31.977Z
- Exported: 2026-08-22T02:51:24.646Z
- Document slug: `phmsa-interpretation-98-0546`

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