- (a) Engineering work transmitted in an electronic format that contains a computer generated seal shall be accompanied by the following text or similar wording: "The seal appearing on this document was authorized by (Example: Leslie H. Doe, P.E. 0112) on (date)." unless accompanied by an electronic signature as described in this section. A license holder may use a computer-generated representation of his or her seal on electronically conveyed work; however, the final hard copy documents of such engineering work must contain an original signature of the license holder(s) and date or the documents must be accompanied by an electronic signature as described in this section. A scanned image of an original signature shall not be used in lieu of an original signature or electronic signature.
(b) An electronic signature is a digital authentication process attached to or logically associated with an electronic document and shall carry the same weight, authority, and effects as an original signature. The electronic signature, which can be generated by using either public key infrastructure or signature dynamics technology, must be as follows:
- (1) unique to the person using it.
- (2) capable of verification.
- (3) under the sole control of the person using it.
- (4) linked to a document in such a manner that the electronic signature is invalidated if any data in the document are changed.
Source Note:The provisions of this §137.35 adopted to be effective May 20, 2004, 29 TexReg 4878.