Wightlink will today bring St Helen back into limited service.
The upper deck of the ferry collapsed last week, injuring four people.
Investigations have been taking place to find out what happened as Wightlink is carrying out its own investigation.
The mezzanine deck which collapsed will not be in use as it resumes service from Portsmouth to Fishbourne.
Chief Operating Officer John Burrows said:
The safety of our customers is always our priority at Wightlink. Bringing the St Helen back into limited service, with her mezzanine decks safely secured out of use, will help us to get as many people to and from the Isle of Wight as possible. All of our ships undergo regular, planned maintenance and, even though St Helen’s mezzanine deck is of a different design to our other vessels, we have taken the precaution of having all our mezzanine decks independently inspected and we will continue to check them daily.