1. If a holder disclaims a power of appointment or other power not held in a fiduciary capacity and if the holder has not exercised the power, the disclaimer takes effect as of the time the instrument creating the power becomes irrevocable.

2. If a holder disclaims a power of appointment or other power not held in a fiduciary capacity and if the holder has exercised the power and the disclaimer is of a power other than a presently exercisable general power of appointment, the disclaimer takes effect immediately after the date of the last exercise of the power.

3. If a holder disclaims a power of appointment or other power not held in a fiduciary capacity, the instrument creating the power is construed as if the power ceased to exist when the disclaimer became effective.