The Blue Puttees is back to regular service after two crew members tested positive for COVID-19.
The ferry was removed from rotation while its crew was tested for the virus, and to allow for a deep cleaning of the vessel.
The Blue Puttees rejoins the schedule today, departing North Sydney at noon.
Marine Atlantic says all employees currently working on the vessel received negative results, and have been cleared for work.
The investigation into the source of the confirmed cases, as well as contact tracing, now rests in the hands of Public Health.