call wherever you want them pierced... each place has their own age limit
My cousins got their daughters ears pierced when they were 6 weeks
I waited until my daughter was 1 year, but I think 3 months is the earliest... might call around.
I think as long as she's had her shots most places just want to see that paperwork. but I'm not 100% sure
Usually they say once they are immunized or after 6 wks