Passengers travelling to the Channel Islands from the UK or France now have to show they've tested negative for COVID-19 before being allowed on board.
The same rule has also been brought in for passengers wanting to travel to Guernsey from Jersey.
Condor Ferries' Goodwill vessel is also returning to carrying only unaccompanied freight, as it did for a time last year.
The company's Operations Director, Elwyn Dop, says it's stepping up its safety protocols to protect passengers and to make sure freight supplies aren't disrupted:
"We fully understand that the changes may be inconvenient to some but are working in the best interests of the Islands as a whole and feel this is the best option available to us.
"These are, once again, unprecedented times for our industry and these prudent measures ensure lifeline freight and passenger services are safeguarded. It is crucial that all the right steps are taken and we are in direct dialogue with both the States of Guernsey and Government of Jersey on this."
'Momentous' week in Jersey's States
Plans to charge wealthiest patients for medical travel
Railway Walk reopens 'several weeks' ahead of schedule
New bar opening at former Rojo and X site to evolve Jersey's nightlife
Former Chief Minister seeks re-election
Château Vermont to become home to new music campus
St Saviour break and entry suspect pictured posing on motorbike
'Overstretched' neurology department following under-experienced managers
