It is unlawful to wear a mask in public.

The Law Explained

While it causes a bit of confusion during modern health crises, this law was originally passed in 1949 with a very specific target: the Ku Klux Klan. By making it illegal to conceal one's identity in public, law enforcement finally had a reliable legal tool to arrest and unmask members of the violent hate group. The law remains on the books today, though modern exceptions exist for holidays and public safety.