31 C.F.R. § 306.87
An assignment of a security registered in the name of or assigned to a partnership must be executed by a general partner. Upon dissolution of a partnership, assignment by all living partners and by the persons entitled to assign in behalf of any deceased partner's estate will be required unless the laws of the jurisdiction authorize a general partner to bind the partnership by any act appropriate for winding up partnership affairs. In those cases where assignments by or in behalf of all partners are required this fact must be shown in the assignment; otherwise, an affidavit by a former general partner must be furnished identifying all the persons who had been partners immediately prior to dissolution. Upon voluntary dissolution, for any jurisdiction where a general partner may not act in winding up partnership affairs, an assignment by a liquidating partner, as such, must be supported by a duly executed agreement among the partners appointing the liquidating partner.
31 C.F.R. § 306.87