Virginia · Interior Designer seal requirements
Virginia Interior Designer seal requirements: proper sizing, signing and sealing of documents
As of
Virginia certifies interior designers through the APELSCIDLA board, and 18VAC10-20-760 F prescribes a single illustrated seal design that must be exactly two inches in diameter: "COMMONWEALTH OF VIRGINIA" around the top, "CERTIFIED INTERIOR DESIGNER" around the bottom, and the holder's name and certificate number in the centre. Subsection B 1 requires the cover sheet and each sheet of the final documents to be sealed, signed and dated, and the documents to bear the professional's name or firm name, address and project name. Subsection C permits an electronic seal, signature and date in lieu of an original when the seal is unique to the professional, verifiable and under the professional's direct control.

18VAC10-20-740 is "Professional responsibility", not the seal rule, and 18VAC10-20-750 is repealed; the seal provision is 18VAC10-20-760. The APELSCIDLA board's general review of 18VAC10-20 took effect May 1, 2026 (Virginia Register Vol. 42, Issue 16), which also repealed 18VAC10-20-780 and added 18VAC10-20-785. Any copy of the chapter dated before that is stale. The seal wording is prescribed only through the illustrations reproduced in 18VAC10-20-760 F — the regulation's narrative text specifies the diameter and the certificate-number footnote but does not spell the legend out in words. The legend recorded here was read from the certified interior designer illustration published with the section (ris.dls.virginia.gov/uploads/18VAC10/imagesother/20210804133347-5025-image006.jpg). The seal is issued under the interior designer certification provisions of Va. Code Title 54.1, Chapter 4, Article 2, which itself contains no seal provision; the seal requirement lives entirely in the board's regulation.
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Virginia Interior Designer seal
- Seal requirements
- 18VAC10-20-760
- Legend
- “Commonwealth of Virginia, Certified Interior Designer”
- Diameter
- Exactly two inches. 18VAC10-20-760 F states that the original seal "must conform in detail and size to the design illustrated in this subsection and must be two inches in diameter."
- Expiration date
- No expiration date appears in the seal. The illustrated certified interior designer design in 18VAC10-20-760 F carries only the two legends, the holder's name and the certificate number; the only date the section requires is the date affixed with the seal and signature on the documents themselves under subsection B 1.(18VAC10-20-760 F; 18VAC10-20-760 B 1)
- Signature date
- Final documents must be "sealed, signed, and dated by the professional" — the date accompanies the signature on the document, and is not part of the seal impression.(18VAC10-20-760 B 1)
- City on seal
- The illustrated seal design contains no city or address field. An address is required, but on the document rather than in the seal: subsection B 1 requires final documents to bear the professional's name or firm name, address and project name.(18VAC10-20-760 F; 18VAC10-20-760 B 1)
- The original seal must conform in detail and size to the design illustrated in this subsection and must be two inches in diameter. The illustrated design for the certified interior designer reads "COMMONWEALTH OF VIRGINIA" around the upper edge and "CERTIFIED INTERIOR DESIGNER" around the lower edge, with "(YOUR NAME)" and "Cert. No. 000" in the centre field.(18VAC10-20-760 F)
- The number shown in the illustrated seal is explained by a footnote to the illustrations: "The number referred to is the last six-digit number as shown on the license or certificate. The number is permanent. Leading zeros contained in the six-digit number may be omitted from the seal."(18VAC10-20-760 F (footnote to the seal illustrations))
- "Affixing of a professional seal, signature, and date will indicate that the professional has exercised direct control and personal supervision over the work to which it is affixed. Affixing of the seal, signature, and date also indicates the professional's acceptance of responsibility for the work shown."(18VAC10-20-760 A)
- "All final documents, including cover sheet of plans, plats, documents, drawings, technical reports, and specifications, and each sheet of plans or plats or drawings prepared by the professional or someone under the professional's direct control and personal supervision, must be sealed, signed, and dated by the professional. All final documents must also bear the professional's name or firm name, address, and project name."(18VAC10-20-760 B 1)
- "For projects involving multiple professional services in the same project, each professional must seal, sign, and date the final documents for the work component that the professional completed or that was completed under the professional's direct control and personal supervision. The professional responsible for the compilation of the project must seal, sign, and date the cover sheet of the aggregate collection of final documents for the project."(18VAC10-20-760 B 2)
- "An electronic seal, signature, and date are permitted to be used in lieu of an original seal, signature, and date when the following criteria, and all other requirements of this section, are met: 1. It is a unique identification of the professional; 2. It is verifiable; and 3. It is under the professional's direct control."(18VAC10-20-760 C)
- "Incomplete plans, plats, documents, and drawings, whether advance or preliminary copies, must be so identified on the plans, plats, documents, or drawings and need not be sealed, signed, or dated."(18VAC10-20-760 D)
- "All work performed by a professional who is licensed or certified by this board, including work that is exempt from licensure pursuant to § 54.1-402 of the Code of Virginia, must be sealed, signed, and dated pursuant to subsection B of this section."(18VAC10-20-760 E)
- A professional may not seal, sign and date work prepared by an unlicensed or uncertified person unless the work was performed under the professional's direct control and personal supervision while that person was an employee of the same firm or under written contract to the firm that employs the professional.(18VAC10-20-760 A 1)
Virginia interior designer seal questions
Is your Virginia seal exactly two inches across?▾
Virginia fixes the diameter at exactly two inches rather than giving a range, and requires the seal to conform "in detail and size" to the illustrated design — a seal scaled to some other diameter does not conform. (18VAC10-20-760 F)
Does the number in your seal match the last six digits of your certificate number?▾
The number in the seal is the last six digits of the certificate number, it is permanent, and leading zeros may be omitted — so the number in the seal may not read the same as the number printed on the wall certificate. (18VAC10-20-760 F (footnote to the seal illustrations))
Have you sealed every sheet, not just the cover sheet?▾
Sealing only the cover sheet is not enough: subsection B 1 requires the cover sheet and each sheet of plans, plats or drawings to be sealed, signed and dated, and requires the professional's name or firm name, address and project name to appear on the final documents as well. (18VAC10-20-760 B 1)
Are you assuming exempt work does not need your seal?▾
Work that is exempt from licensure under § 54.1-402 of the Code of Virginia still has to be sealed if it is performed by a professional this board licenses or certifies. (18VAC10-20-760 E)