A Pennsylvania architect seal must show four things: your licensed name, your license number, the words Registered Architect, and a line referring to the Commonwealth of Pennsylvania. Chapter 9 of the Pennsylvania Code fixes that content but states no diameter and no shape. Metal, stamped and digital seals are all allowed, alone or combined. This page covers the face, devices, signing, sealed documents, digital use and lapse.
Engineer Seal Stamps compliance desk. Checked against 49 Pa. Code § 9.141(a). Sources read September 2026.
| Requirement | What the rule says | Source |
|---|---|---|
| Professional legend | The face reads Registered Architect. | 49 Pa. Code § 9.141(a) |
| Name and number | Your name in the form you hold the license, plus the license number itself. | 49 Pa. Code § 9.141(a) |
| Jurisdiction | The seal refers to the Commonwealth of Pennsylvania. | 49 Pa. Code § 9.141(a) |
| Diameter | None given. The chapter sets wording and content only. | 49 Pa. Code ch. 9 (silent on diameter) |
| Shape | No shape is stated. | Not addressed in the cited rules |
| Devices | An embossing metal seal, an inked stamp design, a digital seal, or any mix of the three. | 49 Pa. Code §§ 9.141(a), (b)(2), 9.143(c) |
| Signature placement | You may sign over the seal, but one element of the face is protected. | 49 Pa. Code § 9.141(b)(3), (5) |
| Documents to seal | Final or complete architectural work given to a client for its files, or sent to a public or governmental agency for final review. | 49 Pa. Code §§ 9.141(b)(1), (2), 9.142 |
| Digital use | The digital seal and the digital signature each face their own test, set side by side. | 49 Pa. Code § 9.141a |
| After a lapse | The device goes back; it is returned or destroyed. | 49 Pa. Code §§ 9.3, 9.142(a), 9.145, 9.146 |
Licensed in more than one place? Check each jurisdiction in architect seal requirements by state. How an architect reaches licensure in Pennsylvania, from education through the ARE, appears in the national table on architect licensing requirements.
What must a Pennsylvania architect seal say?
Four items, all set by 49 Pa. Code § 9.141(a): the legend Registered Architect, the number of your license, your name as licensed, and a Commonwealth of Pennsylvania reference. That is the full list of required content the section gives.
Match the name line to your license record letter for letter, including any middle name or initial that appears there. A shortened or informal version of your name is no longer your name as licensed. Copy the license number from your current credential rather than from memory, and check each digit on the proof.
The section asks for a reference to the Commonwealth, so settle the exact wording of that line on the proof before production starts. For a longer look at how these items sit together on a stamp face, read our overview of Pennsylvania architect stamp requirements.
Does Pennsylvania set a size or shape for the seal?
No. Chapter 9 spells out the legend and the content of an architect seal, yet it never gives a diameter, and no shape is stated in the cited rules. The size you order is a legibility decision, not a number the Code hands you.
A word search across the chapter, running from section 9.1 through the architect seal provisions at 9.140 to 9.146, turns up no diameter. If a quote sheet or a template lists a mandatory Pennsylvania architect diameter, ask where the figure comes from, because this chapter supplies none.
What should drive the choice is the length of your licensed name and the room the Commonwealth line needs. A long name squeezed onto a small face crowds the lettering. Pick a size where every item reads cleanly, and see our separate article on Pennsylvania architect seal requirements as a companion read.
Which devices can a Pennsylvania architect use?
Three forms of the same seal qualify: a metal seal, which is the embosser, a stamp design applied with an inked stamp, and a digital seal generated by computer. Under 49 Pa. Code §§ 9.141(a), (b)(2), 9.143(c) you may use any one of them or mix them.
Because any combination is allowed, a practice can keep an inked stamp for paper sets and a digital seal for electronic files without giving up either. The embosser stays available for anyone who wants a raised impression on the page. Each form should carry the same four items, since each is a version of the one seal the section describes.
If you are still weighing which device fits your workflow, our article on choosing a Pennsylvania architect stamp looks at the stamp itself.
Can you sign across a Pennsylvania architect seal?
Yes. 49 Pa. Code § 9.141(b)(3), (5) allows your signature to cross the seal, and the same provisions protect one element of the seal face. Find out which element that is before your pen crosses an impression on a live sheet.
Permission to sign across is not a free hand. The provisions single out one element of the face for protection, and this page does not name it, because the source notes behind it record only that the protection exists. Read 49 Pa. Code § 9.141(b)(3), (5) directly and fix your signing position around that element before the first sealed set goes out.
Sign a proof sheet first and look at what the signature covers; if any item becomes hard to read, move it. Our notes on Pennsylvania architect stamp guidelines are a related read.
Which Pennsylvania documents need the seal?
Final or complete architectural documents need it in two situations: when you issue them to a client for its own files, and when you submit them to a public or governmental agency for final review. The authority is 49 Pa. Code §§ 9.141(b)(1), (2), 9.142.
Both conditions have to line up. The set has to be final or complete, and it has to be headed to one of those two destinations. These are the same two situations the Pennsylvania engineering chapter uses, so a firm that also seals engineering work will recognize the test.
Does Pennsylvania accept a digital seal and a digital signature?
Yes. 49 Pa. Code § 9.141a sets a test for the digital signature and a matching, parallel test for the digital seal, so each digital element is measured against its own standard rather than one shared standard.
This page does not reproduce those tests. Read 49 Pa. Code § 9.141a before you configure signing software or sign off on a vendor's workflow, and confirm that your digital seal and your digital signature each pass. Build the digital seal image from the same four items as your physical device, since a digital seal is one of the permitted forms of the one seal.
What happens to the seal when a Pennsylvania license lapses?
The Commonwealth takes the device back. Under 49 Pa. Code §§ 9.3, 9.142(a), 9.145, 9.146, a lapsed architect's seal is to be returned or destroyed, so it cannot sit on a shelf waiting for occasional use.
Keep a simple list of every form of the seal you hold, including any stamp, embosser and digital image file, so nothing is overlooked if the rule ever applies to you.
What should you have ready when you order?
Four confirmed details: your name exactly as licensed, your license number, the Registered Architect legend, and the wording you want for the Commonwealth reference. Then choose the forms you need, from a stamp or an embosser to a digital seal, or a mix of them.
Since Chapter 9 gives no diameter, you also choose the size. Pick one that fits your longest line without crowding. Review the proof against 49 Pa. Code § 9.141(a) item by item before approving production.
How do you check a new impression before first use?
Stamp a test sheet and read it against the four items in 49 Pa. Code § 9.141(a). Your licensed name, license number, Registered Architect legend and Commonwealth reference should all be present, spelled correctly and easy to read.
Then sign across a second test impression the way you plan to sign live sheets, and check that the element protected under 49 Pa. Code § 9.141(b)(3), (5) is handled as the rule requires. For a digital seal, place the image on a sample page at its printed size and read it the same way. General background on the devices is on our Pennsylvania architecture stamps information page.
Frequently asked questions
Does a Pennsylvania architect seal need an expiration date?
An expiration date is not one of the four items 49 Pa. Code § 9.141(a) lists. The required content is your licensed name, your license number, the Registered Architect legend and the Commonwealth reference.
Does the seal have to be round?
No shape is stated in the cited rules, and Chapter 9 gives no diameter. Choose a layout that holds all four items legibly; the rule text does not pick a shape for you.
Is signing across the seal mandatory?
The provisions at 49 Pa. Code § 9.141(b)(3), (5) permit it. Permitted is not the same as required, and the same provisions protect one element of the face.
Can I order a seal before my license number is issued?
Not a finished one. The license number is one of the four required items, so the seal cannot be completed until the number exists.
Can a digital seal be my only seal?
The metal seal, stamp design and digital seal are listed as alternatives usable in any combination under 49 Pa. Code §§ 9.141(a), (b)(2), 9.143(c), so a digital-only setup fits the device rule. The digital tests in 49 Pa. Code § 9.141a still apply.
Once your four items and your preferred forms are settled, choose your device from our Pennsylvania stamps and seals collection and proof it against 49 Pa. Code § 9.141(a) before first use.
