(a) It is the policy of the Uniformed Services to accept written requests from members for voluntary income tax withholding from retired pay when the Department of Defense has an agreement for such withholding with the State named in the request.
(b) The Department of Defense shall enter into an agreement for the voluntary withholding of State income taxes from retired pay with any State within 120 days of a request for agreement from the proper State official. The agreement shall provide that the Uniformed Services shall withhold State income tax from the monthly retired pay of any member who voluntarily requests such withholding in writing.