The 200-thousand dollar risk assessment found that out of 40 categories, the Superferry did poorly in three areas.

First, 23-percent of vehicles were not inspected for banned agricultural items. That covers everything from plants and seeds, to rocks and coral.

They also need to improve inspections of car wheel wells. Also, many muddy vehicles were allowed. That D.O.T. says that could be risky because seeds and other things could be in the soil.

Finally, the assessment says the Superferry needs to screen more passengers. It found 17-percent of those without vehicles were not asked if they were carrying prohibited items.

The Superferry says it will make those improvements as it looks to expand service to other islands.

“We are going to meet or exceed these standards because we believe it's important that we protect our community from invasive species,” said Superferry CEO, Admiral Tom Fargo.

The Superferry plans to sail to the Big Island by next summer. It doesn't know when it'll service Kauai again.

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