staff safe. >> reporter: from baseball stadiums to beaches, no masks are required. governors in at least a dozen states saying they will immediately follow the new c.d.c. guidance. south carolina and utah going even farther, dropping face coverings for all public schoolchildren, too. but in other cities and states, especially those that were hardest hit by the virus, there's caution tonight. new york, new jersey and california all saying mask mandates will remain for now. >> if you are in a business or a public setting, we're not there yet. we're frankly not there yet. >> reporter: from grocery stores to big box retailers, concern that policy reversal could force workers to police who is vaccinated and who isn't. >> when people come in and say they have been vaccinated, how do we know? >> reporter: major retailers including kroger, target, starbucks and day ey're keeping mask mandates in ace. but wal-mart and trader joe's say mask aren't require for customers with shots and stores