[ Sign up for our Health IQ newsletter for the latest coronavirus updates ]Masks may also be removed when taking part in certain athletic or fitness activities and in situations where wearing a mask impedes the activity.“Even when wearing a mask, please continue to observe physical distancing as much as possible, as a mask is not a substitute for this practice,” Ono wrote.“For those who are not able to wear a mask, for medical or other reasons, please be careful to maintain a safe distance for the protection of yourself and those around you.”Masks’ policies have been evolving across British Columbia.Transit riders were originally encouraged to wear masks but in August both TransLink and BC Transit switched to a mandatory mask policy.