COAST GUARD APPROVED TPOs SUBCHAPTER M FUNCTIONS

COAST GUARD
APPROVED
SUBCHAPTER M
THIRD PARTY
ORGANIZATION
(TPO)

 APPROVED IAW 46 CFR 139.115 TO:

Audit Towing Safety
Management
Systems
(TSMS)

Issue TSMS
certificate to an
owner or managing
operator

Survey towing
vessels to verify
compliance with
Subchapter M 
Issue survey reports
detailing the results
of towing vessel
surveys 

International Register of Shipping (IRS)
4770 Biscayne Blvd. Suite No. 800
Miami, FL 33137

MISLE ID: 2482759
Date Approved: 26 October 2022
Approval Expires: 27 October 2027

X X X X
Gallagher Marine Systems (GMS)
305 Harper Dr.
Moorestown, NJ  08057

MISLE ID: 1710853
Date Approved: 21 JUN 2021
Approval Expires: 31 JUL 2026
X X X X

Inland Towing Operators Working
Together (ITOW)

ITOW
P.O. Box 1342
Henderson, KY42419-1342

(270) 212-2026
info@inlandtowingoperators.com

MISLE ID: 2505660
Date Approved: 21 June 2024
Approval Expires: 30 June 2029

X X X X

Quality Management International, Inc.
(QMII)
44081 Pipeline Plz, Ste 115
Ashburn, VA  20147

MISLE ID: 7067195
Date Approved: 01 April 2021
Approval Expires: 30 April 2026

X X X X

Sabine Surveyors
2424 Edenborn Ave.
Suite 620
Metaire, LA  70001

(504) 831-9100

http://sabinesurveyors.com

MISLE ID: 2307671
Date Approved: 01 JUN 2022
Approval Expires: 30 JUN 2027

 X  X  X  X

Towing Vessel Inspection Bureau
15201 East Freeway
Suite 213
Channelview, TX  77530

(832) 323-3992

www.thetvib.org

MISLE ID: 2309836
Date Approved: 30 APR 2022
Approval Expires: 30 APR 2027

 X  X  X  X

WaveCrest Inc.
21366 Provincil Blvd
Katy, TX  77450

MISLE ID: 2311574
Date Approved: 31 JAN 2022
Approval Expires: 31 JAN 2027

 X  X  X

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