
State and local governments have varied widely on implementation of mask rules. President-elect Joe Biden wants to change that.
Credit: Jayme Gershen/Bloomberg/Getty Images
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Most states still require face masks to reduce the spread of Covid-19. These are the ones that don't
While health officials agree face masks help prevent the spread of Covid-19, state and local governments have varied widely on implementation of mask rules. Now, President Joe Biden wants to change that.

