Most NPC groups require that your badge is to be returned (it's 'leased' for your lifetime) to the respective HQ, but there are some variations (see above). AOII's policy is to return the badge.
This is handy so that others members of your family may request your badge when they initiate instead of finding out that it was sold in an estate sale, and is now on e-bay being bought by a non-greek. (so frustrating, wouldn't you all agree?). As well, your badge may be requested to become an 'honour' badge at your home chapter (for New Member of the Year and such), but this is approved by Executive Board.
