Metrolinx has announced it will be enacting a policy requiring face masks or coverings to be worn while using GO Transit or UP Express amid the ongoing coronavirus pandemic.According to an update posted by Metrolinx on Friday, the mandatory policy will come into effect on Tuesday.“For the safety of fellow riders and transit staff, it’s the right thing to do to help fight the spread of COVID-19,” the update said.[ Sign up for our Health IQ newsletter for the latest coronavirus updates ]A spokesperson for the transit organization told Global News face masks or coverings will be required while riding on GO Transit and UP Express trains and buses as well as while at stations, including while standing on bus and train platforms (considered under.