Section 1270.58  Seal and Signature Requirements

a)         Every individual professional land surveyor shall have a reproducible seal or facsimile, which may be computer generated, the impression of which shall contain the name of the land surveyor, his or her place of business, the license number of the professional land surveyor, and the words "Professional Land Surveyor, State of Illinois".  A professional land surveyor shall seal all documents prepared by or under the direct supervision and control of the professional land surveyor.  Any seal on a plat of survey, which bears the name of a professional design firm, rather than bearing the name of the individual licensed professional land surveyor responsible for the survey, shall be deemed an invalid seal.  The individual licensee's written signature and date of signing, along with the date of license expiration, shall be placed adjacent to the seal.  The licensee may provide, at his or her sole discretion, an original signature in the licensee's handwriting, a scanned copy of the document bearing an original signature, or a signature generated by a computer.

b)         It is unlawful to affix one's seal to documents if doing so masks the true identity of the person who actually exercised direction, control and supervision of the preparation of that work.  A Professional Land Surveyor who seals and signs documents is not responsible for damage caused by subsequent changes to or uses of those documents when the subsequent changes or uses, including changes or uses made by State or local government agencies, are not authorized or approved by the Professional Land Surveyor who originally sealed and signed the documents. 

c)         All technical submissions issued by a land surveying firm, corporation, limited liability company, professional limited liability company, or partnership are required to bear the corporate or assumed business name and design firm registration number, in addition to the seal requirements.

d)         A suggested facsimile of the design and lettering of the seal is found in Section 1270.ILLUSTRATION A.

(Source:  Amended at 47 Ill. Reg. 798, effective January 5, 2023)