Written by Acorn Sales Company, manufacturing stamps and seals since 1964 · Reviewed by Holly R, VP of Sales and Marketing at Acorn Sales, against the New York State Board for Interior Design, under the State Education Department Office of the Professions and N.Y. Educ. Law § 8302 on 21 September 2026 · Updated 21 September 2026
New York certifies interior designers and gives them no seal at all. Education Law § 8302 is the only marking provision in article 161 and it reads in full: “All original final interior design documents, plans and specifications, prepared by a certified interior designer or by a full-time or part-time subordinate employed under his or her supervision, shall be manually signed by the certified interior designer.” The word manually is the operative one. A search of 8 NYCRR Subpart 79-3, the Commissioner’s Regulations for interior design, returns no occurrence of the word seal either.
That is a real answer rather than a gap, and it leaves you free. Nothing is prescribed for a device, so nothing about one is restricted: no diameter, no legend, no artwork to match. If you want a drawing identification block, it is a design decision, and Acorn will make it to whatever you want on it: your own name, your firm name, a monogram, your logo, or a credential you actually hold such as NCIDQ. Compare the three New York regulations that do prescribe seals, § 68.13 for engineers, land surveyors and professional geologists, § 69.5 for architects and § 79-1.4 for landscape architects, each built around a 1-3/4 inch circle carrying the Great Seal of New York.
Which is where the caution comes in. “Certified interior designer” is a title the state issues and § 8301 governs its use, so those words belong to you only if New York certified you. Put your own name, your firm name, and any credential you actually hold, such as NCIDQ. Leave off “Licensed” and “Registered” and any state-issued title unless the state issued you one, because that is the part some states do restrict. And keep any block plainly typographic rather than building it into the circular Great Seal layout the licensed professions use.
New York interior designer seal requirements at a glance
| Requirement | New York rule | Source |
|---|---|---|
| Seal required | No seal prescribed | N.Y. Educ. Law § 8302 |
| Required elements | No seal is prescribed and A manual signature by the certified interior designer on original final documents | N.Y. Educ. Law § 8302 |
| Size and shape | No size is prescribed, because no seal is prescribed. | N.Y. Educ. Law art. 161 |
| Device allowed | Not applicable. | N.Y. Educ. Law § 8302 |
| Signature and date | Manual signature only, with no date requirement. | N.Y. Educ. Law § 8302 |
| What must be sealed | Original final interior design documents, plans and specifications prepared by the certified interior designer or by a full time or part time subordinate employed under that person’s supervision. | N.Y. Educ. Law §§ 8301, 8302, 8303 |
| Electronic seal | Not addressed. Article 161 says nothing about electronic signatures or electronic documents, and 8 NYCRR Subpart 79-3 adds nothing. Checked both in full. Section 8302 asks for a manual signature, which does not sit. | N.Y. Educ. Law art. 161 (silent) |
| Renewal and lapse | Certification is a title credential and it carries no device to surrender. | N.Y. Educ. Law §§ 8301, 8302 |
| Firm requirements | Not applicable. | N.Y. Educ. Law art. 161 |
| Regulator | The New York State Board for Interior Design, under the State Education Department Office of the Professions | N.Y. Education Law art. 161, Interior Design (§§ 8300 Application, 8301 Use of the title certified interior designer, 8302 Signature of a certified interior designer, 8303 Definition of practice of interior design, 8304 State board for interior design, 8305 Requirements for certification, 8306 Limited permits, 8307 Separability) |
Is a seal required in New York?
New York certifies interior designers and gives them a signature duty, not a seal. Education Law article 161 creates the title certified interior designer and regulates its use, and section 8302 states the whole of the marking obligation: “All original final interior design documents, plans and specifications, prepared by a certified interior designer or by a full-time or part-time subordinate employed under his or her supervision, shall be manually signed by the certified interior designer.” There is no seal in that sentence and no seal anywhere in article 161. The word manually is the operative one: New York asks for a hand signature on the original final documents, and nothing more.
What must appear on the seal
- No seal is prescribed
- A manual signature by the certified interior designer on original final documents
There is nothing to make optional, because there is no device. A word search of 8 NYCRR Subpart 79-3, the Commissioner’s Regulations for interior design, returns no occurrence of the word seal, and article 161 contains none either. Contrast the three New York regulations that do prescribe seals and prescribe them in detail: section 68.13 for engineers, land surveyors and professional geologists, section 69.5 for architects and section 79-1.4 for landscape architects, each specifying a 1 3/4 inch circle built around the Great Seal of New York. A certified interior designer in New York who commissions a round seal in that style is producing a device the state does not recognize and that visually imitates credentials the holder does not have.
Size and shape
No size is prescribed, because no seal is prescribed. Checked N.Y. Education Law article 161 sections 8300 through 8307, and 8 NYCRR Subpart 79-3 in full, with no seal, stamp or size provision found. The 1 3/4 inch figure that appears in New York design practice belongs to 8 NYCRR sections 68.13, 69.5 and 79-1.4 and applies to engineers, land surveyors, geologists, architects and landscape architects, not to certified interior designers.
Embosser, rubber stamp or digital
Not applicable. The only prescribed mark is a manual signature. Section 8302 requires original final interior design documents, plans and specifications to be “manually signed,” which on its face contemplates a hand signature rather than an applied device or a facsimile. A certified interior designer may of course use a plain name and title block on drawings, but that block is a business convention and carries no statutory weight, and it should not be built to look like the circular Great Seal devices the licensed professions use.
Signing and dating
Manual signature only, with no date requirement. Section 8302 names the signature and stops. Article 161 prescribes no date beside the signature, no seal to sign across and no alteration notation. That is a marked contrast with the New York architect and landscape architect rules, which require a separate alteration warning stamp on sealed documents and a dated altered by notation when a sealed item is changed.
New York certifies interior designers and gives them no seal at all
This is the fact that catches out anyone reasoning by analogy. New York has a State Board for Interior Design, Education Law article 161, a certified interior designer title and an entry route with education, experience and examination requirements. What it does not have is a seal. Section 8302 is the only marking provision in the article and it reads in full that all original final interior design documents, plans and specifications prepared by a certified interior designer or by a subordinate under supervision “shall be manually signed by the certified interior designer.”
Which documents must be sealed
Original final interior design documents, plans and specifications prepared by the certified interior designer or by a full time or part time subordinate employed under that person’s supervision. Article 161 is a title certification statute rather than a practice act: section 8301 governs use of the title certified interior designer and section 8303 defines the practice of interior design. Because the article regulates the title, an uncertified person may perform interior design work in New York, and the signature duty in section 8302 attaches to documents produced by a certified interior designer.
Electronic and digital seals
Not addressed. Article 161 says nothing about electronic signatures or electronic documents, and 8 NYCRR Subpart 79-3 adds nothing. Checked both in full. Section 8302 asks for a manual signature, which does not sit comfortably with an applied electronic mark. Where a New York state or local entity chooses to accept electronic signatures generally, the New York State Electronic Signatures and Records Act gives an electronic signature the same validity and effect as a handwritten one, and adoption by those entities is voluntary rather than compulsory. No Office of the Professions guidance applies that framework to certified interior designers.
Renewal, lapse and retirement
Certification is a title credential and it carries no device to surrender. Nothing in article 161 or Subpart 79-3 addresses what happens to any marking on lapse, suspension or revocation, because the only prescribed marking is the certified interior designer’s own signature. What lapses is the right to use the title under section 8301. Not addressed beyond that.
Firm requirements
Not applicable. New York issues no interior design firm certificate and there is no seal on which a firm identifier could appear. Education Law section 7307(2) allows engineers, land surveyors, geologists, architects and landscape architects to form joint enterprises, partnerships, professional service corporations and design professional service corporations; certified interior designers are not named in that list. Firm identity on an interior design drawing is a business matter.
What to check before you order
There is no New York seal for you to order. Education Law section 8302 requires only that you manually sign original final interior design documents, plans and specifications. If you want a drawing identification block, keep it plainly typographic with your name and the title certified interior designer, and keep it away from the circular Great Seal of New York layout that sections 68.13, 69.5 and 79-1.4 reserve for engineers, land surveyors, geologists, architects and landscape architects. A round New York style seal reading interior designer corresponds to no New York credential and risks reading as an imitation of one that does.
Browse interior designer stamps and seals.
Frequently asked questions
Does a New York certified interior designer need a seal?
No. Article 161 prescribes none and 8 NYCRR Subpart 79-3 contains no seal provision. The whole of the marking obligation is § 8302, which requires original final interior design documents, plans and specifications to be manually signed by the certified interior designer. Nothing more.
Does New York license interior designers?
It certifies them. Education Law article 161 creates the title certified interior designer and regulates its use, and there is a State Board for Interior Design with education, experience and examination requirements at § 8305. But article 161 is a title certification statute rather than a practice act, so an uncertified person may perform interior design work in New York. Section 8303 defines the practice and § 8301 governs use of the title.
What does manually signed mean in New York?
On its face, a signature written by hand. Section 8302 names the signature and stops, and it contemplates a hand signature rather than an applied device or a facsimile. That is why a stamp of any kind satisfies nothing in New York: the requirement is the act of signing, not the application of a mark.
Can I have a name block on my New York drawings?
Yes, as a business convention rather than a legal requirement. Keep it plainly typographic, with your name and, if you hold it, the title certified interior designer. What to avoid is building it into the circular Great Seal of New York layout that 8 NYCRR §§ 68.13, 69.5 and 79-1.4 reserve for engineers, land surveyors, geologists, architects and landscape architects.
What size would a New York interior designer seal be?
There is no answer, because there is no seal. The 1-3/4 inch figure that appears throughout New York design practice belongs to 8 NYCRR §§ 68.13, 69.5 and 79-1.4 and applies to engineers, land surveyors, geologists, architects and landscape architects. Article 161 and Subpart 79-3 state no seal, stamp or size provision at all.
Is a round New York interior designer seal a problem?
It satisfies nothing and it invites trouble. A circular device built around the Great Seal of New York resembles the architect seal at § 69.5 closely enough to read as an imitation of a credential you do not hold, and it meets no New York requirement, because the only requirement is a signature written by hand. A typographic block does the identification job without the resemblance.
Does New York require a date beside my signature?
No. Section 8302 names the signature and nothing else. Article 161 prescribes no date, no seal to sign across and no alteration notation. That is a marked contrast with the New York architect and landscape architect rules, which require a separate alteration warning stamp on sealed documents and a dated altered by notation when a sealed item is changed.
Which New York documents do I have to sign?
Original final interior design documents, plans and specifications prepared by you or by a full-time or part-time subordinate employed under your supervision, under § 8302. Preliminary and working material is outside the sentence.
Can I sign New York interior design documents electronically?
Article 161 says nothing about electronic signatures or electronic documents, and 8 NYCRR Subpart 79-3 adds nothing. Section 8302 asks for a manual signature, which does not sit comfortably with an applied electronic mark. Where a New York state or local entity chooses to accept electronic signatures generally, the New York State Electronic Signatures and Records Act gives an electronic signature the same validity and effect as a handwritten one, and adoption by those entities is voluntary. No Office of the Professions guidance applies that framework to certified interior designers.
How does New York compare with states that do give interior designers a seal?
It is the outlier. Texas registers interior designers and gives them a full seal under 22 Texas Administrative Code chapter 5 subchapter F. Florida registers them and gives them a hexagonal two inch seal under rule 61G1-16.002. Illinois registers them and gives them a seal under 68 Illinois Administrative Code § 1255.45. California gives Certified Interior Designers a stamp issued by a private council under Business and Professions Code § 5801. New York alone stops at a signature.
What happens if my New York certification lapses?
What lapses is the right to use the title under § 8301. There is no device to surrender, because the only prescribed marking is your own signature. Neither article 161 nor Subpart 79-3 says anything further about markings on lapse, suspension or revocation. Practically, the thing to attend to is any letterhead, drawing block or website carrying the title.
Does a New York interior design firm get a certificate?
No. New York issues no interior design firm certificate and there is no seal on which a firm identifier could appear. Education Law § 7307(2) allows engineers, land surveyors, geologists, architects and landscape architects to form joint enterprises, partnerships, professional service corporations and design professional service corporations, and certified interior designers are not named in that list. Firm identity on an interior design drawing is a business matter.
