Written by Acorn Sales Company, manufacturing stamps and seals since 1964 · Reviewed by Holly R, VP of Sales and Marketing at Acorn Sales, against no New Hampshire board; the profession is unregulated in this state and New Hampshire Office of Professional Licensure and Certification, Find a Board directory (no interior design board) on 21 September 2026 · Updated 21 September 2026
New Hampshire does not license, register or certify interior designers. The Office of Professional Licensure and Certification publishes the complete Find a Board directory of every board, council and commission it administers, and the design and technical boards on it are the Board of Architects, the Board of Professional Engineers, the Board of Professional Geologists, the Board of Land Surveyors, the Board of Landscape Architects and the Board of Natural Scientists. Interior design does not appear, RSA 310-A has no subdivision for it, and no agency issues a number that could go on a seal.
Nothing is prescribed, so the design is yours. One limit still applies, and it is about wording rather than shape. There is no diameter, no legend, no approved artwork and nothing to file, so your stamp is a design decision rather than a compliance one. 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.
New Hampshire draws its architect line in unusually exact terms, which is the one thing to design away from. N.H. Code Admin. R. Arch 306.02(b) fixes the legends Licensed Architect and The State of New Hampshire, two concentric circles at 1-9/16 and 15/16 inches, and the horizontal placement of the name and number. 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.
New Hampshire interior designer seal requirements at a glance
| Requirement | New Hampshire rule | Source |
|---|---|---|
| Seal required | Not licensed here | New Hampshire Office of Professional Licensure and Certification, Find a Board directory (no interior design board) |
| Required elements | New Hampshire licenses no interior designers and issues no interior designer seal | New Hampshire Office of Professional Licensure and Certification, Find a Board directory |
| Size and shape | No dimension exists. | New Hampshire Office of Professional Licensure and Certification, Find a Board directory (no interior design board) |
| Device allowed | Not a regulated purchase. | N.H. Rev. Stat. Ann. § 310-A:44 |
| Signature and date | Not addressed, because New Hampshire has no interior design credential to attach a signature duty to. | N.H. Rev. Stat. Ann. §§ 310-A:44, 310-A:67(II), 310-A:130, 310-A:152 |
| What must be sealed | No New Hampshire document requires an interior designer seal. | N.H. Rev. Stat. Ann. §§ 310-A:44, 310-A:130, 310-A:152 |
| Electronic seal | Not applicable. | N.H. Code Admin. R. Lsa 305.03(a) |
| Renewal and lapse | Not applicable. | New Hampshire Office of Professional Licensure and Certification, Find a Board directory (no interior design board) |
| Firm requirements | Not applicable. | N.H. Rev. Stat. Ann. § 310-A:42-a |
| Regulator | No New Hampshire board; the profession is unregulated in this state | New Hampshire Office of Professional Licensure and Certification, Find a Board directory, which names every board the Office administers and shows Architects, Professional Engineers, Professional Geologists, Land Surveyors, Landscape Architects and Natural Scientists with no interior design board |
Is a seal required in New Hampshire?
New Hampshire does not license, register or certify interior designers, and therefore issues no interior designer seal. The Office of Professional Licensure and Certification publishes the complete Find a Board directory of the boards, councils and commissions it administers, and the design and technical boards on it are the Board of Architects, the Board of Professional Engineers, the Board of Professional Geologists, the Board of Land Surveyors, the Board of Landscape Architects and the Board of Natural Scientists. Interior design does not appear. There is no New Hampshire board, no rule chapter, no registration number to inscribe and no legend to letter.
What must appear on the seal
- New Hampshire licenses no interior designers and issues no interior designer seal
There is nothing to specify. Because New Hampshire grants no interior design credential, no wording is authorized and no wording is prohibited by a licensing board. What is policed is the neighboring title: RSA 310-A:44 reserves the legend Licensed Architect to the architect seal, and N.H. Code Admin. R. Arch 306.02(b) fixes the exact words and geometry. A New Hampshire interior design device must not read as an architect seal.
Size and shape
No dimension exists. New Hampshire prescribes no interior designer seal, so there is no diameter to state. The sources here are the OPLC Find a Board directory, which lists every board the Office administers, and the RSA 310-A subdivisions for architects, land surveyors, landscape architects, professional geologists and natural scientists.
Embosser, rubber stamp or digital
Not a regulated purchase. Any device a New Hampshire interior designer uses is a business or identification stamp, not a professional seal, and it carries no statutory effect. A New Hampshire official cannot accept an interior designer stamp in place of an architect seal, because RSA 310-A:44 requires papers or documents involving the practice of architecture, when issued or filed for public record, to be dated and to bear the signature and seal of the licensed professional.
Signing and dating
Not addressed, because New Hampshire has no interior design credential to attach a signature duty to. Where a New Hampshire project requires sealed documents, the seal, signature and date obligations fall on the licensed architect under RSA 310-A:44 and Arch 306.02(a), on the licensed land surveyor under RSA 310-A:67(II) and Lan 305.03(a), on the licensed landscape architect under RSA 310-A:152 and Lsa 305.03, or on the licensed professional geologist under RSA 310-A:130 and Geo 307.03(a).
There is no New Hampshire interior designer stamp to buy, and that is the answer
The Office of Professional Licensure and Certification administers every occupational board in New Hampshire and publishes a Find a Board directory. The design and technical boards on it are Architects, Professional Engineers, Professional Geologists, Land Surveyors, Landscape Architects and Natural Scientists. Interior design is not among them, there is no subdivision of RSA 310-A for it, and no New Hampshire agency issues a number that could go on a seal.
Which documents must be sealed
No New Hampshire document requires an interior designer seal. The sealing duty attaches to papers or documents involving the practice of the licensed profession, when issued or filed for public record, and is discharged by the licensed architect, land surveyor, landscape architect or professional geologist in responsible charge.
Electronic and digital seals
Not applicable. Of New Hampshire’s four design credentials only landscape architects have an express digital seal permission, at N.H. Code Admin. R. Lsa 305.03(a); the architect, land surveyor and geologist rules name an impression type seal or a rubber stamp. New Hampshire has no interior design credential and therefore no electronic interior designer seal standard.
Renewal, lapse and retirement
Not applicable. With no credential there is no renewal cycle, no lapse, no number to change and no device to surrender. Contrast the New Hampshire licensed professions, where RSA 310-A:44, 310-A:130 and 310-A:152 each make stamping after expiration or revocation a class B misdemeanour.
Firm requirements
Not applicable. New Hampshire registers no interior design business organization and issues no certificate of authorization for interior design. The certificate route New Hampshire does provide is for architectural business organizations under RSA 310-A:42-a and N.H. Code Admin. R. Arch 307.01.
What to check before you order
You do not need, and cannot lawfully obtain, a New Hampshire interior designer seal, because New Hampshire does not license or register the profession. If you want a device for your own drawings, order a plain identification stamp with your name and firm, and describe any out-of-state credential as that state’s credential. Keep the words Licensed Architect and The State of New Hampshire off it, and keep away from the circular two-ring format the architect rule prescribes. If your work is going to a New Hampshire official or is being filed for public record, the document has to be dated and to bear the signature and seal of the licensed architect, land surveyor, landscape architect or professional geologist in responsible charge.
Browse interior designer stamps and seals.
- How to Choose the Right New Hampshire Interior Designer Stamp
- Your Guide to New Hampshire Interior Designer Stamp Purchase
Frequently asked questions
Does New Hampshire license interior designers?
No. The Office of Professional Licensure and Certification Find a Board directory lists every board the Office administers, and there is no interior design board among them. RSA 310-A contains subdivisions for architects, land surveyors, landscape architects, professional geologists and natural scientists, and none for interior design.
Is an interior designer seal required in New Hampshire?
No rule requires one and none is prescribed. New Hampshire’s sealing duties attach to the licensed professions: RSA 310-A:44 for architects, 310-A:67(II) for land surveyors, 310-A:152 for landscape architects and 310-A:130 for professional geologists.
What can I put on a New Hampshire interior designer stamp?
Anything true about you: your name, your firm name, a monogram, your logo, contact details, or the exact name of a private certification such as the NCIDQ certificate from the Council for Interior Design Qualification. Describe any out-of-state credential as that state’s credential. Size and shape are yours.
What should a New Hampshire interior designer stamp avoid?
The architect device, which is specified in detail. Keep off the words Licensed Architect and The State of New Hampshire, and keep away from the circular two-ring format at 1-9/16 and 15/16 inches that Arch 306.02(b) prescribes. A device echoing any of that on a New Hampshire drawing is asking for a complaint even though interior design work itself is unregulated here.
What size should a New Hampshire interior designer stamp be?
Any size, since none is prescribed for the profession. The figures that appear in New Hampshire design practice belong to the licensed credentials, and choosing something visibly different from the architect geometry is worth doing on purpose.
Who seals a New Hampshire document filed for public record?
The licensed architect, land surveyor, landscape architect or professional geologist in responsible charge. RSA 310-A:44 requires papers or documents involving the practice of architecture, when issued or filed for public record, to be dated and to bear the signature and seal of the licensed professional, and the other subdivisions impose parallel duties.
Does my out-of-state interior design credential count in New Hampshire?
It describes a credential the issuing state grants. A Registered Interior Designer stamp from Alabama, Arkansas, Iowa or Louisiana, and a Certified Interior Designer credential from Kentucky or Maine, all describe real credentials elsewhere and none in New Hampshire. Name the issuing state expressly if you want yours visible.
Is there an electronic sealing standard for New Hampshire interior designers?
No, because there is no credential. Of New Hampshire’s four design credentials only landscape architects have an express digital seal permission, at N.H. Code Admin. R. Lsa 305.03(a); the architect, land surveyor and geologist rules name an impression type seal or a rubber stamp.
Does a New Hampshire interior design firm register?
No. The certificate route New Hampshire provides is for architectural business organizations under RSA 310-A:42-a and N.H. Code Admin. R. Arch 307.01. There is no certificate of authorization for interior design and no firm seal.
Is there a New Hampshire interior design credential to renew?
None, so there is no renewal cycle, no lapse, no number to change and no device to surrender. Contrast the licensed professions, where RSA 310-A:44, 310-A:130 and 310-A:152 each make stamping after expiration or revocation a class B misdemeanour.
