The Kip Rating for each boat is based on a static bollard pull test or modeling done based on the hull design, drive configuration, and static bollard test. Modeling vessels show the breaking force in a dynamic condition. The modeling is submitted to and approved by OSPR.
Default Matrix
From section 851.9(a) of the Tank Vessel Escort Regulations: Default Matrix Option for Matching Tugs to Tankers
The tug or tugs used for an escorted transit shall be able to provide sufficient braking force to stop the escorted tanker from a speed of 5 knots through the water. The braking force of the tug(s) shall match the tanker’s displacement, as indicated in the following matrix:
As of: May 13, 2025
| Tug | Boat ID | LOA (ft) | Propulsion System | Number of Rudders | Flanking Rudders | Kips Zones 1 & 2 |
Kips Zones 4 & 6 |
Certification Expires |
|---|---|---|---|---|---|---|---|---|
| AmNav Maritime Services | ||||||||
| DELTA BILLIE | ANDB | 100 | Z-Drive | 2 | 0 | 266.00 | 264.00 | ETIP |
| INDEPENDENCE | ANIN | 78.7 | Z-Drive | 2 | 0 | 118.14 | 118.14 | ETIP |
| LIBERTY | ANLB | 95.2 | Z-Drive | 2 | 0 | 79.47 | 79.47 | ETIP |
| MICHELLE SLOAN | ANMS | 76.3 | Z-Drive | 2 | 0 | 129.80 | 129.80 | ETIP |
| PATRICIA ANN | ANPA | 78.7 | Z-Drive | 2 | 0 | 124.40 | 124.40 | ETIP |
| PATRIOT | ANPT | 91.86 | Conventional | 2 | 2 | 65.98 | 65.98 | ETIP |
| REVOLUTION | ANRV | 73.4 | Z-Drive | 2 | 0 | 135.56 | 135.56 | ETIP |
| SANDRA HUGH | ANSH | 73.4 | Z-Drive | 2 | 0 | 127.62 | 127.62 | ETIP |
| SARAH AVERICK | ANSA | 100 | Z-Drive | 2 | 0 | 256.00 | 256.00 | ETIP |
| TERESA BRUSCO | ANTB | 81.59 | Z-Drive | 2 | 0 | 123.56 | 123.56 | ETIP |
| Z-THREE | ANZ3 | 95 | Z-Drive | 2 | 0 | 102.46 | 102.46 | ETIP |
| Z-FOUR | ANZ4 | 95 | Z-Drive | 2 | 0 | 101.08 | 101.08 | ETIP |
| Z-FIVE | ANZ5 | 87.7 | Z-Drive | 2 | 0 | 104.62 | 104.62 | ETIP |
| JAMIE RENEA | ANJR | 98 | Z-Drive | 2 | 0 | 161.88 | 161.88 | ETIP |
| Baydelta Maritime | ||||||||
| DELTA AUDREY | BDAD | 100 | Z-Drive | 2 | 0 | 176.80 | 176.80 | ETIP |
| DELTA CATHRYN | BDCN | 100 | Z-Drive | 2 | 0 | 266.00 | 264.00 | ETIP |
| DELTA DEANNA | BDDE | 105 | Z-Drive | 2 | 0 | 268.00 | 268.00 | ETIP |
| DELTA LINDA | BDLN | 105 | Z-Drive | 2 | 0 | 262.30 | 261.30 | ETIP |
| DELTA TERESA | BDDT | 91.86 | Z-Drive | 2 | 0 | 177.36 | 177.36 | ETIP |
| Centerline Logistics | ||||||||
| KESTREL | CLKS | 94 | Conventional | 2 | 2 | 43.88 | 43.88 | ETIP |
| MILLENNIUM FALCON | CLMF | 99 | Z-Drive | 2 | 0 | 99.46 | 99.46 | ETIP |
| MILLENNIUM STAR | CLMS | 105 | Z-Drive | 2 | 0 | 116.47 | 116.47 | ETIP |
| Crowley Marine Services | ||||||||
| ARTEMIS | CMAR | 82 | Z-Drive | 2 | 0 | 263.00 | 260.00 | ETIP |
| ATHENA | CMAA | 77 | Z-Drive | 2 | 0 | 257.00 | 248.00 | ETIP |
| APOLLO | CMAP | 77 | Z-Drive | 2 | 0 | 242.00 | 231.00 | ETIP |
| VALOR | CMVR | 91.86 | Z-Drive | 2 | 0 | 249.10 | 244.10 | ETIP |
| Foss Maritime | ||||||||
| ALTA JUNE | FMAJ | 73.4 | Z-Drive | 2 | 0 | 188.00 | 179.00 | ETIP |
| ARTHUR FOSS | FMAR | 99.4 | Cycloidal | 2 | 0 | 188.00 | 153.00 | ETIP |
| BRYNN FOSS | FMBF | 96 | Cycloidal | 2 | 0 | 140.00 | 134.00 | ETIP |
| JAMIE ANN | FMJA | 105 | Z-Drive | 2 | 0 | 250.00 | 250.00 | ETIP |
| KEEGAN FOSS | FMKF | 110 | Conventional | 2 | 4 | 73.31 | 73.31 | ETIP |
| LEISA FLORENCE | FMLE | 100 | Z-Drive | 2 | 0 | 270.00 | 270.00 | ETIP |
| LYNN MARIE | FMLM | 98 | Z-Drive | 2 | 0 | 210.00 | 200.00 | ETIP |
| MARSHALL FOSS | FMMF | 98 | Z-Drive | 2 | 0 | 210.00 | 200.00 | ETIP |
| RACHAEL ALLEN | FMRA | 100 | Z-Drive | 2 | 0 | 261.00 | 261.00 | ETIP |
| Starlight Marine Services, Inc. | ||||||||
| JOHN QUIGG | STJQ | 76.3 | Z-Drive | 2 | 0 | 91.05 | 91.05 | ETIP |
| ROBERT FRANCO | STRF | 100 | Z-Drive | 2 | 0 | 256.00 | 254.00 | ETIP |
| TIM QUIGG | STTQ | 80 | Z-Drive | 2 | 0 | 90.35 | 90.35 | ETIP |
| Westar Marine Services | ||||||||
| BEARCAT | WSBC | 69 | Conventional | 2 | 2 | 18.79 | 18.79 | ETIP |
| ORION | WSOR | 100 | Conventional | 2 | 2 | 43.79 | 43.79 | ETIP |
| SAGITTARIAN | WSSA | 79 | Conventional | 2 | 2 | 42.33 | 42.33 | ETIP |
| SCORPIUS | WSSC | 124 | Conventional | 2 | 4 | 74.94 | 74.94 | ETIP |
| TAURUS | WSTS | 69 | Conventional | 2 | 2 | 25.04 | 25.04 | ETIP |
