An Iowa professional engineer seal must bear the title professional engineer plus your name and Iowa license number. A rubber stamp or other facsimile has the same effect as the seal itself, provided it is legible. You sign and hand-date each sealed document in an ink color that sets both apart from everything else. This page covers the seal face, devices, size, signing, sealed documents, electronic files and renewal.
Engineer Seal Stamps compliance desk. Checked against Iowa Code § 542B.16(1) and the Engineering and Land Surveying Examining Board. Sources read September 2026.
| Requirement | What the rule says | Source |
|---|---|---|
| Name | Your name appears on the seal. | Iowa Code § 542B.16(1) |
| License number | Your Iowa license number appears on the seal. | Iowa Code § 542B.16(1) |
| Title words | For engineers, professional engineer. Surveyors use professional land surveyor instead. | Iowa Code § 542B.16(1) |
| Rubber stamp or facsimile | Allowed if legible, and treated as having the same effect as the seal itself. | Iowa Code § 542B.16(1) |
| Size and shape | Neither is stated. | Not addressed in the cited rules |
| Signature | An original signature, in an ink color that contrasts with the rest. | Iowa Admin. Code r. 481-1050.1(3), (4) |
| Date | An original date written by hand, also in the contrasting ink. | Iowa Admin. Code r. 481-1050.1(3), (4) |
| Documents to seal | Each engineering document and each land surveying document that Iowa Code section 542B.16(2) reaches. | Iowa Admin. Code r. 481-1050.1(3), (5) |
| Electronic seal | No electronic seal standard is stated in the facts checked for this page. | Not addressed in the cited rules |
| Late renewal | Licenses expire at intervals the board sets. You keep the right to renew and may do so within thirty days after expiration, with a reasonable penalty. | Iowa Code §§ 542B.16(5), 542B.18 |
Iowa is one row in our professional engineer seal requirements by state table, which sets each jurisdiction's rule side by side.
What three items appear on an Iowa PE seal?
The title professional engineer, your name and your Iowa license number. Iowa Code § 542B.16(1) lists those three items. A land surveyor's seal swaps in the title professional land surveyor where an engineer's seal reads professional engineer.
Take the name and number straight from your Iowa license so the seal and the credential agree. The facts checked for this page describe no border, shape or layout, so the face is built from those three items. For more on the face design, see our post on Iowa engineering stamp design.
Does Iowa accept a rubber stamp in place of the seal?
Yes, as long as it is legible. Iowa Code § 542B.16(1) lets you use a rubber stamp or another facsimile of the seal and gives that impression the same legal effect as applying the seal itself.
Legibility is the condition written into that permission, so pick a device that prints every character cleanly on your paper stock. The rubber stamp is the device the statute names. Our post on choosing an Iowa professional engineer stamp has more on picking a device.
What size is an Iowa engineer stamp?
The cited Iowa law states no size and no shape. Iowa engineer seals are manufactured at 1-3/4 inches; that is a production size, not a measurement taken from the statute or from the board rules.
With no dimension to meet, the practical test is whether every character prints legibly. A 1-3/4 inch face leaves room for your name, number and title words to read clearly, which serves the legibility condition the statute attaches to a stamp or facsimile.
How do you sign and date a sealed Iowa document?
With an original signature and an original date written by hand, both in an ink color that contrasts with everything else. Iowa Admin. Code r. 481-1050.1(3), (4) sets those terms, so a printed date or a signature in matching ink does not fit them.
Pick a pen color that clearly differs from everything printed on the sheet, and keep that pen with your seal so the two travel together. Write the date by hand rather than relying on a date typed into the title block.
Which Iowa documents must be sealed?
Every engineering document and every land surveying document that falls within Iowa Code section 542B.16(2). Iowa Admin. Code r. 481-1050.1(3), (5) ties the sealing duty to that statutory scope, and this page does not break it into a list of document types.
If a document is an engineering document within that section, treat it as needing your seal, your original signature and your handwritten date in contrasting ink. Our post on Iowa engineering seal guidelines is a related read.
Can an Iowa engineer seal a document electronically?
The facts checked for this page do not state an Iowa electronic seal rule. The provision cited on the subject is Iowa Admin. Code r. 481-1050.1(8), and you should read its current text directly before you seal or sign a PDF.
Keep in mind that the signing rule asks for an original signature and a date written by hand in contrasting ink, which describes ink on paper. How that carries over to an electronic file is a question for Iowa Admin. Code r. 481-1050.1(8), not something this page can settle.
What happens if an Iowa license is not renewed on time?
Iowa licenses expire at intervals the board sets. Missing renewal during the expiration month does not cost you the right to renew, and you can still renew within thirty days after the expiration date, subject to a reasonable penalty.
The cited provisions, Iowa Code §§ 542B.16(5), 542B.18, do not address using the seal during that gap. The simple course is to renew before the expiration date so every sealed document goes out under a current license. Our post on Iowa PE stamp expiration covers the renewal side in more depth.
What should you have ready to order an Iowa PE seal?
Your name and Iowa license number as they appear on your license, and the title that matches your credential. Engineers use professional engineer; a surveyor's license calls for professional land surveyor. Then choose a legible device.
Double-check the spelling of your name against the license before you submit the order, since the seal is built from what you send. Our post on Iowa PE stamp regulations is a useful companion while you gather these details.
How do you check an Iowa impression before using it?
Stamp a test sheet and read it both up close and at arm's length. Your name, license number and title should all be legible, because legibility is the condition attached to using a rubber stamp or facsimile.
Then copy or scan the test sheet and read it again. Finish by practicing the signing step with your contrasting ink pen beside the test impression, so the first real document goes out right.
Frequently asked questions
Does the Iowa seal need a border or a particular shape?
The facts checked for this page list only three items for the face and state no shape or border. The 1-3/4 inch size Iowa seals are manufactured at is a production choice, not a rule.
Does the date have to be handwritten even on a computer-printed title block?
Yes. Iowa Admin. Code r. 481-1050.1(3), (4) calls for an original date written by hand in the contrasting ink, so a date printed with the title block does not take its place.
Is an embosser allowed in Iowa?
The facts checked for this page name only the rubber stamp or other facsimile, which carries the same effect as the seal itself. They do not say what device the seal itself is, so this page takes no position on embossers.
Does a scanned signature satisfy the Iowa signing rule?
The rule calls for a signature and a hand-written date that are both originals. A scan is a copy of a signature rather than an original, so it does not match that wording; electronic signing is a question for Iowa Admin. Code r. 481-1050.1(8).
Does the Iowa seal show an expiration date?
No expiration date is among the three items Iowa Code § 542B.16(1) requires on the seal, so the die carries only your name, license number and title words.
Order a legible Iowa stamp from our Iowa engineer stamps and seals, with your name and license number copied from your license.
