Delaware · Landscape Architect seal requirements
Delaware Landscape Architect seal requirements: proper sizing, signing and sealing of documents
As of
Delaware prescribes the seal to the sixteenth of an inch: 24 Del. Admin. C. § 200-5.1.3 requires two concentric circles with the outside circle measuring 1 13/16 inches across the centre, the licensee's name at the top, "Registered Landscape Architect" reading counterclockwise at the bottom, and only the words "NO." and "State of Delaware" inside the inner circle. Only an embossing-type seal or a rubber stamp is authorised. Under 24 Del. C. § 212(a) all final documents issued or filed for public record must be dated and bear the signature and seal.

The 1½-to-1¾-inch range widely quoted for Delaware engineers appears in no Delaware authority — Chapter 28 states no dimension and the Council publishes no seal specification. The section often cited for the seal, § 2823, is "Grounds for discipline; appeals". The seal rule is Rule 5.0 of 24 Del. Admin. C. 200 (Board of Landscape Architecture); its amendment history runs through 28 DE Reg. 815 (05/01/25). The cited URL is the Delaware Register's administrative-code document for Rule 200 — the page at regulations.delaware.gov/AdminCode/title24/200.shtml simply embeds it.
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Delaware Landscape Architect seal
- Board
- Delaware Board of Landscape Architecture (Division of Professional Regulation, Department of State)
- Seal requirements
- 24 Del. C. § 212(a); 24 Del. Admin. C. § 200-5.0
- Legend
- “Registered Landscape Architect, State of Delaware”
- Diameter
- Two concentric circles; "the outside circle measures across the center 1 13/16 inches."
- Expiration date
- The inner circle "shall contain only" the words "NO." and "State of Delaware", so no expiration or renewal date belongs on the seal.(24 Del. Admin. C. § 200-5.1.3)
- Signature date
- No date is placed on the seal itself; the date belongs on the document — final drawings, specifications, plans and reports issued or filed for public record must be dated and bear the signature and seal.(24 Del. Admin. C. § 200-5.1.3; 24 Del. C. § 212(a))
- City on seal
- Rule 5.1.3 specifies the whole content of the seal — name, "NO." and number, "State of Delaware" and "Registered Landscape Architect" — and no city or address.(24 Del. Admin. C. § 200-5.1.3)
- "For the purpose of signing and sealing drawings, specifications, contract documents, plans, reports and other documents ..., each landscape architect shall have an individual seal of design and size as approved by the Board to be used as hereinafter directed on documents prepared by the landscape architect or under direct supervision for use in the State of Delaware."(24 Del. Admin. C. § 200-5.1.1)
- "The seal to be used by a licensee of the Board shall be consistent with the image in this subsection. It shall be of the embossing type or a rubber stamp and have 2 concentric circles. The outside circle measures across the center 1 13/16 inches. The inner circle shall contain only the words 'NO.' and 'State of Delaware.' At the bottom the words 'Registered Landscape Architect' reading counterclockwise, and at the top the name of the licensee." The illustrated specimen shows the Delaware state coat of arms at the centre.(24 Del. Admin. C. § 200-5.1.3)
- "The application of the seal impression or rubber stamp to the first sheet of the bound sheets of the drawings with index of drawings included, title page of specifications, and other drawings and contract documents shall constitute the licensed landscape architect's stamp."(24 Del. Admin. C. § 200-5.1.2)
- "An impression of the seal is to be submitted to the Board to be included in the licensee's records."(24 Del. Admin. C. § 200-5.1.4)
- "All final drawings, specifications, plans, reports or other papers or documents involving the practice of landscape architecture, as defined within this chapter, when issued or filed for public record, shall be dated and bear the signature and seal of the landscape architect or landscape architects who prepared or approved same."(24 Del. C. § 212(a))
- "Landscape architects shall not sign or seal drawings unless they were prepared by them or under their direct supervision", direct supervision meaning responsible control over and detailed professional knowledge of the contents of the drawings throughout their preparation; reviewing or correcting drawings prepared by others is not responsible control.(24 Del. Admin. C. § 200-5.2.1, 5.2.2)
- "The seal appearing on any drawings shall be prima facie evidence that said drawings were prepared by or under the direct supervision of the individual who signed or sealed the drawings."(24 Del. Admin. C. § 200-5.2.3)
- The rule authorises only an embossing-type seal or a rubber stamp; Rule 200 (sections 1.0 through 11.0) was read in full and contains no electronic-seal or digital-signature provision.(24 Del. Admin. C. § 200-5.1.3)
Delaware landscape architect seal questions
Does your seal read "Registered Landscape Architect"?▾
The rule fixes that wording even though Delaware issues licenses rather than registrations, so a seal reading "licensed landscape architect" does not match the prescribed design. (24 Del. Admin. C. § 200-5.1.3)
Is your seal 1 13/16 inches rather than a stock 1 3/4 or 2 inch size?▾
Delaware states an exact outside measurement across the centre, not a range. (24 Del. Admin. C. § 200-5.1.3)
Have you filed an impression of your seal with the Board?▾
An impression of the seal must be submitted to the Board for inclusion in the licensee's records. (24 Del. Admin. C. § 200-5.1.4)