S.D. Codified Laws § 58-33A-11

Each insurer shall maintain at its home or principal office a complete file containing a specimen copy of every printed, published, or prepared advertisement of its policies and specimen copies of typical printed, published, or prepared advertisements of its blanket, franchise, and group policies where the content of advertisements vary dependent upon coverage options, hereafter disseminated in this state, with a notation indicating the manner and extent of distribution and the form number of any policy advertised. The file may be kept electronically. The division may inspect the file. All advertisements shall be maintained in the file for a period of either five years or until the filing of the next regular report on the examination of the insurer pursuant to chapter 58-3, whichever is the longer period of time.