On a phone this opens the camera. Fill the frame with the symbol and keep it in focus.

Agency list from cRc Kosher's Acceptable Kashrus Agencies page, checked daily. An agency missing from the list has not been judged substandard; contact cRc about any symbol not shown. cRc advises extra care even with a recommended symbol for bagged vegetables, meat, Pesach hotels and cruises. Symbols are identified by AI and can be wrong, so compare the symbol on the package with the agency's own logo.