Masks Are Required for Alaska Ferry Travellers 
The Federal mask mandate requires Alaska ferry travellers to wear a mask for the duration of their presence both on vessels and while in a terminal building or on terminal premises.
Beginning February 1, 2021 and in compliance with the federal mandate, Alaska ferries will require persons two years and older to wear proper face coverings while using facilities and travelling on vessels. 
To the extent possible, reasonable accommodation for passengers unable to wear a face covering due to a disability, will be made.
The CDC order makes refusal to wear a face covering a violation of federal law.