Hi, yes it is very true you must seek further information from your local coucil dept, enviromental health dept, as you are puncturing the skin and this requires a licence or alike. It also used to be a requirement to do so on floorings such as tiles, lino etc, but not carpet, not sure how the laws and bits stand now as I have seen many places doing ear peircings with out this rule. Better to be safe than sorry always so checking out with your authorities is the very best thing to do. Along with of course making sure you are covered by your insurance in case of any mishaps.
Good luck
Grace x