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Table 2b. Number of U.S. flag Vessels by Vessel Type and Estimated Ballast Capacity
Sub Type
Count
Ballast
Capacity of
<1500m3
Ballast
Capacity of
1500-5000m3
Ballast
Capacity of
>5000m3
Barges
9
0
0
9
Bulk Carriers
73
0
0
73
Container Ship
87
0
0
87
Crude Oil Tanker
17
0
0
17
Chemical Tanker
5
0
0
5
Chemical/Oil Products Tanker
100
0
0
100
General Cargo Ship
89
0
62
27
Fishing Vessels
334
332
2
0
LNG Tanker
0
0
0
0
LPG Tanker
0
0
0
0
OSVs
121
103
0
18
Passenger (Cruise) Ship
31
0
31
0
Passenger-Passenger/Cargo (Ro-Ro)
104
103
1
0
Passenger Ship
114
113
1
0
Refrigerated Cargo Ship
71
0
71
0
Ro-Ro Cargo Ship
62
0
15
47
Livestock Carrier
0
0
0
0
Vehicle Carrier
22
0
0
22
TOTAL
1239
651
183
405
Vessel Size
We further sorted the Lloyds data by deadweight tonnage to develop a more comprehensive view
of the various-sized vessels in what we consider to be the world merchant fleet subject to ballast-
water regulations (Table 3). Again, in the case of fishing vessels, only those of 300 gross tons or
more were included in our analysis. More than 92% of our estimated 8,001 fishing vessels
subject to IMO ballast water regulations are less than 1000 DWT. Given the slim operating
profit margins of smaller fishing vessels, it is unlikely that they will be able to afford the types of
BWTS that are the focus of our research, or will have room aboard to accommodate them. Our
assumption is that these smaller fishing vessels will need to find some other way to comply with
IMO ballast water regulations.