days, closing february 27th. new scrutiny of federal u.s. covid guidance as more states move forward with lifting mask mandates. new infections are declining across the country as the omicron wave subsides. that crop drop has led to states relaxing measures towards a new normal. this even though the centers for disease control and prevention hasn't changed its guidelines. the agency recommends all americans wear a mask in areas of high or substantial transmission, which is the vast majority of counties nationwide. cnn's polo sandoval has the latest. >> reporter: from coast to coast, governors are rolling back their mask mandate according to a cnn analysis. only these six states, as well as puerto rico and washington, d.c., still have such a requirement in place. however, california, illinois, and oregon already announcing plans to lift that requirement in the coming weeks. that leaves only hawaii, new mexico, washington state, puerto