SDCL § 6-8B-18: Registration books--Disclosure of information.

The registration books maintained on behalf of any public body by the clerk or registrar shall not be open to inspection or copying by the general public, and no registrar, officer, or member of the governing body shall disclose information contained therein except in the following cases:

(1) If specifically provided otherwise by state or by federal law or regulations;

(2) If directed by judicial order;

(3) If requested by authorized representatives of the secretary of revenue or attorney general or the commissioner of Internal Revenue of the United States for the purpose of ascertaining the application of any estate, inheritance, or other tax on bonds or the interest thereon;

(4) If determined by the registrar to be necessary for the registration of ownership, transfer, or exchange of bonds in accordance with chapter 57A-8.