Illinois · Geologist seal requirements

Illinois Geologist seal requirements: proper sizing, signing and sealing of documents

As of

Illinois licenses professional geologists under the Professional Geologist Licensing Act, and § 60(a) requires a seal "of a design as required by rule bearing the licensee's name, license number, and the legend 'Licensed Professional Geologist'." The design rule, 68 Ill. Adm. Code 1252.Appendix A, fixes the seal or rubber stamp at 1 3/4 inches in diameter, with "LICENSED PROFESSIONAL GEOLOGIST" in the upper portion between concentric circles, "ILLINOIS" in the lower portion, and the licensee's name and license number inside the inner circle. Section 60(b) also requires the document itself to show the licensee's full name, signature, license number and the date of license expiration alongside the seal impression.

An approved Illinois Geologist seal design, shown as a watermarked example
An example of an approved Illinois Geologist seal design

Illinois licenses structural engineers under a separate Act with its own seal rule (68 Ill. Adm. Code 1480.145); a structural engineer's seal is not the PE seal below. Note also that the license expiration date has to sit next to the seal — a detail that catches out-of-state filers. The design rule is 68 Ill. Adm. Code Part 1252 (Professional Geologist Licensing Act), not Part 1450, which is a common misattribution. Section 60 carries the Act's sunset marker — "Section scheduled to be repealed on January 1, 2031" — which applies to the Act generally and is not a pending change to the seal itself.

Generate a Illinois Geologist seal to this specification

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Your Illinois Geologist seal from pedigitalstamps.com meets every requirement on this page — the required wording, the layout and the diameter set out in 225 ILCS 745/60; 68 Ill. Adm. Code 1252.APPENDIX A. Fill in your details and download it in seconds.

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Illinois Geologist seal

Legend
“licensed professional geologist, Illinois”
Diameter
A fixed diameter, not a range: "each licensee shall obtain, at his/her own expense, a seal or rubber stamp, 1 3/4 inches in diameter." The Act itself states no dimension and delegates the design to rule.
Expiration date
Illinois is unusual here: § 60(b) requires "the date of license expiration" to appear on every public geologic record along with the name, signature, license number and seal impression. The seal design in 1252.Appendix A has no field for it — the requirement attaches to the document, so the expiration date is commonly set beneath or beside the seal.(225 ILCS 745/60(b); 68 Ill. Adm. Code 1252.APPENDIX A(a))
Signature date
Section 60(b) lists what must accompany the seal — full name, signature, license number and date of license expiration — and does not call for the date on which the document was signed. The design rule adds nothing further.(225 ILCS 745/60(b); 68 Ill. Adm. Code 1252.APPENDIX A)
City on seal
Neither § 60 nor Appendix A mentions the licensee's city, address or place of business; the inner circle carries only the name and license number.(225 ILCS 745/60; 68 Ill. Adm. Code 1252.APPENDIX A(a))
  • "Upon licensure, each licensee shall obtain a seal of a design as required by rule bearing the licensee's name, license number, and the legend 'Licensed Professional Geologist'."(225 ILCS 745/60(a))
  • "In accordance with Section 60 of the Act, each licensee shall obtain, at his/her own expense, a seal or rubber stamp, 1 3/4 inches in diameter. The seal or stamp shall consist of concentric circles between which shall appear in capital letters 'ILLINOIS' in the lower portion of the seal and 'LICENSED PROFESSIONAL GEOLOGIST' in the upper portion of the seal. Within the inner circle of the seal shall appear the name of the licensee and the individual's license number."(68 Ill. Adm. Code 1252.APPENDIX A(a))
  • "All preliminary, draft, and final geologic reports, documents, permits, affidavits, maps, boring logs, cross sections, or other records offered to the public and prepared or issued by or under the supervision of a Licensed Professional Geologist shall include the full name, signature, and license number of the licensee, and the date of license expiration of the person who prepared the document or under whose supervision it was prepared, and an impression of the licensee's seal, in accordance with rules issued by the Department."(225 ILCS 745/60(b))
  • "The Licensed Professional Geologist who has contract responsibility shall seal a cover sheet of the professional work products and those individual portions of the professional work products for which the Licensed Professional Geologist is legally and professionally responsible. A Licensed Professional Geologist practicing as the support professional shall seal those individual portions of professional work products for which that Licensed Professional Geologist is legally and professionally responsible."(225 ILCS 745/60(c))
  • "The use of a Licensed Professional Geologist's seal on professional work products constitutes a representation that the work prepared by or under the personal supervision of that Licensed Professional Geologist has been prepared and administered in accordance with the standards of reasonable professional skill and diligence."(225 ILCS 745/60(d))
  • "It is unlawful to affix one's seal to professional work products if doing so masks the true identity of the person who actually exercised direction, supervision, and responsible charge of the preparation of that work." A licensee who signs and seals work is not responsible for damage caused by later changes or uses that the licensee did not authorise or approve.(225 ILCS 745/60(e))
  • The rule prints "a suggested facsimile of the design and lettering of the seal" beneath the mandatory description in subsection (a).(68 Ill. Adm. Code 1252.APPENDIX A(b))

Illinois geologist seal questions

Where does the license expiration date go if the Illinois seal design has no field for it?

The license expiration date is required on the record but has no place in the prescribed seal design, so it must be carried on the document itself alongside the seal impression, signature, name and license number. (225 ILCS 745/60(b); 68 Ill. Adm. Code 1252.APPENDIX A(a))

Is the record preliminary or draft? Illinois still requires the seal if it is offered to the public.

The sealing duty is not limited to final work: it reaches "all preliminary, draft, and final" geologic reports, documents, permits, affidavits, maps, boring logs, cross sections or other records offered to the public. (225 ILCS 745/60(b))

Is your seal exactly 1 3/4 inches across?

1 3/4 inches is an exact diameter in Illinois, not a minimum or a range. (68 Ill. Adm. Code 1252.APPENDIX A(a))

Are you the contract-responsible geologist or a support professional on this work product?

Sealing is apportioned by responsibility: the geologist with contract responsibility seals a cover sheet plus their own portions, and a support professional seals only their portions. (225 ILCS 745/60(c))

Seal requirements in other states

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