"Determinable charitable interest" means a charitable interest that is a right to a mandatory distribution currently, periodically, on the occurrence of a specified event, or after the passage of a specified time and that is unconditional or will be held solely for charitable purposes.
"Unconditional" means not subject to the occurrence of a specified event that is not certain to occur, other than a requirement in a trust instrument that a charitable organization be in existence or qualify under a particular provision of the United States Internal Revenue Code of 1986 on the date of the distribution, if the charitable organization meets the requirement on the date of determination.
Va. Code § 64.2-779.11