S.D. Codified Laws § 10-6-151
Each director shall take and subscribe an oath, which shall be certified by the county auditor or other officer administering the same, and attach to the return which the director is required to make, in the following form:
I, __________, director of equalization for the ________________of ________________in __________ county, in the State of South Dakota, do solemnly swear (or affirm), that the return to which this is attached contains a correct description of each parcel of real property within such municipality, township, or assessment district, as far as I have been able to ascertain the same; that the value attached to each parcel in such return is, as I verily believe, the full and true cash value thereof; that in no case have I knowingly omitted to demand a statement of the description and value of all the real property which I am required by law to list, or in any way connived at any violation or evasion of any of the requirements of the law in relation to the listing and valuing of real property.
SDCL 10-6-151