A Delaware landscape architect seal has an outside circle 1-13/16 inches across and the device has to be a rubber stamp or an embosser. Your name runs along the top, Registered Landscape Architect runs along the bottom reading counterclockwise, and the inner circle holds only NO. and State of Delaware. The rules are silent on dating and on electronic seals. This page covers the face, devices, signing, documents and renewal.
Engineer Seal Stamps compliance desk. Checked against 24 DE Admin. Code 200, s. 5.1.3. Sources read September 2026. Updated 8 November 2026.
| Requirement | What the rule says | Source |
|---|---|---|
| Outside circle | 1-13/16 inches, measured across the center. | 24 DE Admin. Code 200, s. 5.1.3 (amended effective May 1, 2025) |
| Top of the seal | Your name. | 24 DE Admin. Code 200, s. 5.1.3 |
| Bottom of the seal | Registered Landscape Architect, read in a counterclockwise direction. | 24 DE Admin. Code 200, s. 5.1.3 |
| Inner circle | Limited to NO. and State of Delaware. Nothing else goes there. | 24 DE Admin. Code 200, s. 5.1.3 |
| Devices | An embossing seal or a rubber stamp. No other type is named. | 24 DE Admin. Code 200, s. 5.1.3 |
| Electronic seal | Not addressed anywhere in the chapter. | 24 DE Admin. Code 200, s. 5.0 (no electronic seal provision) |
| Whose work you seal | Only drawings you prepared or directly supervised. Sealing another's drawings means you vouch for them. | 24 DE Admin. Code 200, s. 5.1.1, 5.2.1, 5.2.3 (no rule on date or placement) |
| Date and signature placement | Not addressed. No date rule, and no rule on whether the signature crosses the seal. | 24 DE Admin. Code 200, s. 5.1.1, 5.2.1, 5.2.3 (no rule on date or placement) |
| Documents | Plans, drawings, reports, specifications, contract documents and other documents prepared for use in Delaware. | 24 DE Admin. Code 200, s. 5.1.1, 5.1.2, 5.2.2, 5.2.3 |
| Renewal and inactive status | Sixty days after expiration to renew with a late fee, then termination. Inactive status is capped at ten years. | 24 DE Admin. Code 200, s. 6.1, 8.1, 8.2 (amended effective May 1, 2025) |
Delaware is one row in our landscape architect seal requirements by state table, which sets each jurisdiction's rule side by side.
How is the Delaware seal face laid out?
Your name sits at the top. Registered Landscape Architect follows the bottom edge and reads counterclockwise. The inner circle is limited to two entries, NO. and State of Delaware, under section 5.1.3.
Because the inner circle is closed to anything else, a logo, firm name or extra line placed there takes the seal out of line with the rule. Our post on designing your Delaware landscape architect seal has more on layout.
What diameter does Delaware set?
The outside circle measures 1-13/16 inches across its center, under section 5.1.3 as amended effective May 1, 2025. The rule gives one figure, with no minimum or range, so a die rounded to a nearby size fails to match.
The size figure the rule states is for the outside circle. For the wider compliance picture, see our guide to complying with Delaware landscape architect stamp requirements.
Which devices does section 5.1.3 allow?
Two: an embosser and a rubber stamp. Either one satisfies section 5.1.3, and the section does not name a computer-generated seal, an electronic seal or any third kind of device.
An embosser leaves a raised impression, and a rubber stamp leaves ink. Our post on the Delaware landscape architect seal has more on the seal itself, and for the products, see Delaware landscape architect stamp and seal products.
Does Delaware allow an electronic seal?
The rules do not address one. The only devices section 5.0 mentions are the embosser and the rubber stamp; it never uses the words electronic, digital or computer-generated, and no other part of chapter 200 adds an electronic seal provision.
Build your sealing routine around the two named devices. If a client asks for an electronic seal, the Delaware rule gives you no text to point to either way.
Whose drawings can you sign and seal in Delaware?
Under rule 5.2.1, drawings that you prepared yourself or that someone prepared under your direct supervision. Under rule 5.2.3, putting your signature or seal on drawings someone else prepared represents that you know their contents in professional detail and vouch for them.
Under both rules, your seal speaks for the content of the drawings. Treat drawings from a consultant you did not supervise as outside what you may seal.
Must the Delaware seal carry a date or a signature across it?
The rules do not say. Sections 5.1.1, 5.2.1 and 5.2.3 treat signing and sealing as a pair, yet none of them states whether a date has to accompany the seal or whether your signature must run across the impression.
Those sections leave both points open, so their text does not require a date line or a sign-across layout. What they do make plain is that signing and sealing go together.
What documents take a Delaware landscape architect's seal?
Plans, drawings, reports, specifications and contract documents, along with other documents, that you prepared or directly supervised for use in Delaware. The coverage comes from sections 5.1.1, 5.1.2, 5.2.2 and 5.2.3.
The phrase for use in Delaware ties the duty to where the work is used, so a set bound for a Delaware site is inside it.
What happens when a Delaware license is not renewed?
You have sixty days. Rule 6.1 makes renewal, or a request for inactive status, due by the expiration date and then allows a late renewal with a fee for sixty days afterward. Past that point the license is treated as terminated.
A terminated license means reapplying under 24 Del.C. §210(b). Inactive status under rule 8.1 can last up to ten years, and reinstatement takes a pro rated fee plus 20 hours of continuing education per biennial period of inactivity. The cited rules do not address using the seal during a lapse.
What should you send when ordering a Delaware seal?
Your name for the top of the seal and your choice of embosser or rubber stamp. The diameter, the bottom legend and the inner circle entries are all set by section 5.1.3, so none of them is an option on the order.
Spell your name the way you want it to read along the top edge, and confirm it against your license. Our post on getting a professional landscape architect stamp in Delaware is another useful read before you buy.
How do you check a Delaware impression before using it?
Measure the outside circle at 1-13/16 inches across the center. Then check that the bottom legend reads counterclockwise and that the inner circle shows NO. and State of Delaware with nothing added.
Finally, confirm your name is spelled correctly at the top and that every letter of the legend is legible on the paper you use.
If you also hold a Delaware geologist license, the Delaware geologist seal rules set out what that seal must carry.
Frequently asked questions
Can my license number be engraved inside the inner circle?
No. Section 5.1.3 limits the inner circle to NO. and State of Delaware, so adding a number or any other text there departs from the rule.
Will a 1-3/4 inch stamp from another state do?
No. Delaware states 1-13/16 inches for the outside circle, and a 1-3/4 inch stamp is 1/16 inch smaller than that figure.
Does the reading direction of the bottom legend matter?
Yes. Section 5.1.3 specifies that Registered Landscape Architect reads counterclockwise, so check the direction on your first impression.
Which version of the rules does this page reflect?
The seal size provision in section 5.1.3 and the renewal and inactive status rules in sections 6.1, 8.1 and 8.2 are cited as amended effective May 1, 2025.
Can I request inactive status instead of renewing?
Yes. Rule 6.1 treats a request for inactive status like a renewal application, due no later than the expiration date. Rule 8.1 caps inactive status at ten years.
When you have your name and device settled, order from our Delaware stamps and seals collection.
