N.J. Stat. § 3A:25-40: Devisee, beneficiary or appointee under testamentary instrument, or heir; whole or fractional share

Any person who is a devisee or beneficiary under a testamentary instrument, or appointee under a power of appointment exercised by a testamentary instrument, including a person succeeding to a disclaimed interest, or an heir may disclaim in whole or in part the right of succession to any property or interest therein, including a future interest, by filing a disclaimer under this act. A disclaimer may be of a fractional share, expressed as either a percentage or dollar amount, or any limited interest or estate.

L.1979, c. 484, s. 2 eff. Feb. 28, 1980.