Fill Out the Waiver in Advance If you have an upcoming appointment, complete the waiver in advance. Fill Out the Piercing Waiver Piercing Waiver for Adults Piercing waiver for thsoe over the age of 18. Piercing Waiver for Minors Minor Piercing Waiver for those Under 18. Minors will still need to be accompanied by the Legal Guardian who signed the waiver or have a notarized letter of consent with them.