From Planes, to Ubers to Trains: Here’s How the New Mask Mandate Ruling Will Affect Your Travels Posted byEntrepreneur Staff April 19, 2022 Leave a comment on From Planes, to Ubers to Trains: Here’s How the New Mask Mandate Ruling Will Affect Your Travels The CDC’s mask mandate for public transportation that went into effect in February 2021 was ruled “unlawful” in a hearing on Monday.