A notarial officer must have an official seal to be used for the purpose of acknowledging a document. The seal must be a type approved by the secretary of state and must contain at least:
Rubber stamp seals and electronic seals must contain the words and seal within the surrounding border.
A notarial officer must indicate the date on which the notarial officer's commission expires below the official seal under this section.
SDCL 18-1-3.1