Any interest created prior to the effective date of this Article which has not been accepted, may be disclaimed on or after the effective date of this Article, in the manner provided herein; provided, however, that no interest which has arisen prior to the effective date of this Article in any person other than the beneficiary, shall be destroyed or diminished by any action of the disclaimant taken pursuant to this Article. SOURCE: California Probate Code, § 190.9.