South Dakota Department of Labor and Regulation: Board of Technical Professions

Each drawing, report, or document that is signed and sealed using a digital signature shall have an electronic authentication process attached to or logically associated with the electronic document. The licensee's use of a digital signature is optional and, if used, shall be:

1. Unique to the licensee;
2. Capable of verification;
3. Under the sole control of the licensee using it; and
4. Linked to a document in such a manner that the digital signature is invalidated if any data in the document is changed.

A digital signature that uses a process approved by the board is presumed to meet the criteria provided in this section. Any hard copy printed from the transmitted electronic file shall bear the facsimile of the signature and seal and shall be a confirmation that the electronic file was not altered after the initial digital signing of the file. Any alterations to the file shall cause the facsimile of the signature to be voided.

SDCL § 36-18A-45.1

Any licensed professional engineer, architect, land surveyor, and landscape architect shall use an appropriate seal. The seal shall contain the following information:

1. The name, South Dakota;
2. Licensee's name;
3. License number; and
4. The appropriate title or combination of titles: Professional Engineer, Architect, Land Surveyor, Landscape Architect.

The seal shall be legible and shall have an outer circle with a diameter measuring at least one inch and no greater than two inches and an inner circle with a diameter measuring five-eighths of the diameter of the outer circle. Titles may be prefixed with the words, Licensed or Registered. The seal may be an embossed seal, a rubber stamp, a computer-generated seal, or other facsimile found acceptable to the board. The licensee's signature and the date shall be adjacent to or across the seal. Petroleum release assessors and remediators, or interns, may not use a seal.

SDCL § 36-18A-44