Cal. Probate Code § 15402 : California Probate Code — Trust Law — Modification And Termination Of Trusts — Modification of trust by procedure for revocation Date: 31 Aug 2016 TEXT PDF Current through the 2016 Legislative Session Unless the trust instrument provides otherwise, if a trust is revocable by the settlor, the settlor may modify the trust by the procedure for revocation. Ca. Prob. Code § 15402