Also found in: Medical.
A legal document giving an assignee the ability to make medical decisions on behalf of the assignor in the event of the assignor's mental or physical incapacity. A proxy directive is made while the assignor is still competent, and comes into effect at incapacity. A proxy directive gives far-reaching powers; for example, the form for a proxy directive in the state of New Jersey states allows the assignee the ability to "provide, withhold or withdraw life-sustaining measures" from the assignor. It is important to note that a proxy directive does not allow the assignee access to the assignor's finances, nor obliges the assignee to pay for any treatment. See also: Power of attorney.