Cesar Chavez Day is always celebrated on his birthday, March 31st. President Barack Obama declared Cesar Chavez Day a national holiday in 2014.
It is not a federal holiday, but is a state holiday in California. It is either an optional or commemorative day in nine other states – Arizona, Colorado, Illinois, Michigan, New Mexico, Texas, Utah, Wisconsin and Rhode Island.
California, Arizona, Colorado, Michigan, New Mexico, Texas, Utah and Wisconsin observe Cesar Chavez day by closing schools and state offices.