Registered name versus artwork changes
GN 21 covers registered MDs and IVDs. Product-name/identifier changes under 6C and product-owner name/address changes under 6D are Administrative CNs requiring approval before implementation. Listed colour, font, layout/design-only changes need no CN only under their stated safety/visibility conditions. Class A is outside this registered-device CN process, but its listing and dealer obligations remain. Assess each simultaneous change separately; an office address update is not automatically a manufacturing-site move.