This document contains final regulations relating to the predeceased parent rule, which provides an exception to the general rules of section 2651 of the Internal Revenue Code (Code) for determining the generation assignment of a transferee of property for generation-skipping transfer (GST) tax purposes. These regulations also provide rules regarding a transferee assigned to more than one generation. The regulations reflect changes to the law made by the Taxpayer Relief Act of 1997 and generally apply to individuals, trusts, and estates.