Interior design is a profession that weaves aesthetics with function, unique style with technical skill, and creativity with public safety.
For candidates interested in joining this exciting field, it’s vital to understand that the path into it varies dramatically by state.
When considering entering the profession, it’s essential to understand the state’s setup.
The layout and design of licensing and registration runs from states with tight licensure rules to those with a wide-open creative landscape.
However, an individual designs the pathway to success; there’s room to grow, specialize, and build a career in a fascinating, exciting field.
Interior design might look effortless when you see a finished room—colors balanced, lighting perfect, textures harmonized—but getting there as a professional doesn’t run on instinct alone.
Depending on where you live, your “bare minimum requirements” range from a formal license from the recognized governing body to any absolutely open landscape.
While a candidate’s entry point depends on geography, the opportunity for long-term success is based on ability.
That’s shaped by passion, training, mentorship, and a portfolio that reflects each individual’s best work.
Whether you’re designing a new career path or planning a move to another state, here’s a guide to what each state (and Puerto Rico) requires.
Think of this as a roadmap, a sketch pad, and a layout to help individuals move forward—professional, accurate, and inspiring candidates to learn more about a vocation that affects the environment, both home and professional, public and private, where we as individuals and communities spend so much of our lives.
Industry Tips for Entering the Field (Regardless of Your State)
While the field of interior design is state-dependent when it comes to physical practice, there are still overarching recommendations that make candidates more competitive no matter where they live and work:
Consider NCIDQ Certification
Even in open states, NCIDQ demonstrates professionalism, code knowledge, and proficiency in interior architecture.
Many firms and clients list it as preferred—even when it’s not explicitly demanded.
One of the most prestigious organizations in the field of interior design, and an outfit mentioned repeatedly throughout the listings, is the National Council for Interior Design Qualification (NCIDQ).
The NCIDQ offers the NCIDQ exam (administered in three parts) and Proficiency Certification, one of the highest and most prestigious credentials for interior designers.
This credential presents proof that a candidate has mastered Life Safety & ADA codes, FF&E selections/specifications, sustainability guidelines, CDs, and Contract Administration.
There are online certification programs for interior designers that can get you the knowledge and licensing you need.
Join Professional Associations
Organizations like the American Society of Interior Designers (ASID), the International Interior Design Association (IIDA), and the Interior Design Society (IDS) showcase a candidate’s commitment to the profession, and they also provide:
- Networking
- CE opportunities
- Portfolio reviews
- Local mentorship
- Project showcases
- Job boards
Build a Portfolio
A strong visual portfolio carries weight no matter the regulatory climate.
Include:
- Before-and-after comparisons
- Mood boards
- Renderings
- Concept statements
- Construction documentation (if applicable)
Learn Local Permitting Norms
Even in open states, specific drawing submissions require the involvement of architects or engineers.
Understanding where your jurisdiction draws that line can help you build collaborative relationships.
Stay Code-Aware
Accessibility, fire safety, and egress standards affect interior design more than people realize.
Code fluency sets the spectacular interior designer apart instantly, helps them stand out from the competition, and frames their professional commitment.
States That Require a License or Registration
Here is a look at the states that have selected a more structured approach to interior design.
If candidates want the highest level of professional privileges—especially in commercial spaces, code-dependent projects, or situations requiring permitted drawings—it is imperative to work toward and receive the official license or registration.
The good news: the pathway is clear.
Education, experience, and the NCIDQ exam are the typical checkpoints.
Below are each state’s requirements to enter the profession, the governing body, and the renewal rhythm, along with a brief sketch of the layout and path forward for each state’s design of the pathway toward the rewarding career of an interior designer.
A CIDA-accredited program means that the degree has been earned from an institution of higher learning approved by CIDA, or the Council for Interior Design Accreditation.
This signifies that the program has met the professional standards of the interior design profession and offers a high-quality education, equipping graduates with industry-ready skills.
Alabama
Alabama keeps things professional and tidy.
If you want to operate at the highest level, the state expects formal preparation and industry-standard competency.
A license is required for the title Registered Interior Designer.
Governing body: Alabama Board for Registered Interior Designers.
Requirements: Approved education, supervised experience, and NCIDQ exam passage.
Renewal: Biennial with required CEUs.
District of Columbia
DC treats interior design like the urban infrastructure it often supports—organized and safety-minded.
Registration is required for the title Certified Interior Designer.
Governing body: DC Board of Architecture, Interior Design, and Landscape Architecture.
Requirements: NCIDQ exam, CIDA-accredited or equivalent education, and supervised training.
Renewal: Periodic, with continuing education units (CEUs).
Florida
Florida maintains one of the country’s strongest regulatory systems, particularly for commercial spaces and projects that require permitted drawings.
License mandated to practice as a Registered Interior Designer (commercial work).
Governing body: Florida Board of Architecture and Interior Design.
Requirements: CIDA-approved education, documented experience, and NCIDQ exam.
Renewal: Biennial with CE hours.
Louisiana
Louisiana blends Southern charm with structured expectations.
If you want to work on code-regulated commercial interiors, registration is your gateway.
Registration is needed for interior design in commercial spaces.
Governing body: Louisiana State Board of Interior Designers.
Requirements: Six years of combined education and experience + NCIDQ.
Privileges: Registered designers may submit non-structural plans for a permit.
Renewal: Annual.
Nevada
Nevada keeps things crystal clear for commercial practice.
If you want independence and the authority to issue permits, licensure is the way to go.
A license is necessary for commercial practice and independent permitting.
Governing body: Nevada State Board of Architecture, Interior Design & Residential Design.
Requirements: Accredited degree, two years of supervised experience, and NCIDQ passage.
Privileges: May submit non-structural interior plans for permit.
Renewal: Biennial.
Puerto Rico
Puerto Rico follows a traditional licensing model, with professional standing tied to formal training and examination—a system familiar to architects and engineers.
A license is mandated for professional-level interior design practice.
Governing body: Puerto Rico Examining Board of Professional Designers.
Requirements: Education, board exam, and a “good moral standing” clause.
Renewal: Periodic.
States That Do Not Require Licensure but Mandate Certification or Training
For candidates inspired to practice the art and science of interior design, the following states allow individuals to practice interior design without a license.
However, they reserve specific professional titles—most commonly “Registered Interior Designer” or “Certified Interior Designer”—for those who meet specific education and testing requirements.
Think of it as: open practice + organizational prestige.
In the states listed below, anyone inspired, interested, or called to the idea of crafting special indoor spaces may work in the field.
However, if candidates want a protected title, they’ll need to earn it before they can hang the proverbial shingle above their door, adorn their business cards, or announce to the world that they are a “Certified Interior Designer,” or “Registered Interior Designer.”
Understanding the Difference Between CID and C.I.D.
Clarifying credentials is essential for anyone interested in pursuing an interior design career.
The Certified Interior Designer (CID) is a recognized credential that demonstrates a professional’s expertise in creating safe and functional interior spaces.
The CID is bestowed through a rigorous combination of education, experience, and examination, earning the designation Certified Interior Designer.
With a CID, the practitioner is qualified to create interior environments that protect public health, welfare, and safety.
The Certified Interior Decorator (C.I.D.) designation is awarded by Certified Interior Decorators International (C.I.D.), a professional association and certifying body that emphasizes the aesthetic aspects of interior design.
Interior decorators receive a C.I.D. upon completing the program and passing the exam.
The spotlight here is mainly on aesthetics, including the selection of furnishings, fabrics, and colors, rather than the more technical and safety-oriented aspects handled by Certified Interior Designers.
Certified Interior Designer (CID) versus Certified Interior Decorator (C.I.D.)—Clarifying the key differences in focus, responsibilities, and qualifications between the two titles.
Focus: CID turns on a fulcrum of use, safety, and aesthetics; C.I.D. focuses on furnishings and materials for interior spaces.
Work Function: CID may include space planning, floor plans, and the submission of construction documents for building permits; C.I.D. primarily emphasizes decoration.
Training: In many areas, CID demands formal education, experience, and passing an exam such as the NCIDQ. C.I.D. is often an open (if well-furnished) field in many areas.
Arkansas
Arkansas keeps practice open but reserves its professional title for designers who’ve demonstrated formal competence.
Title protected: Registered Interior Designer.
Governing body: Arkansas State Board of Architects, Landscape Architects, and Interior Designers.
Requirements: NCIDQ certification and qualifying education/experience.
Renewal: Periodic with CEUs.
California
California has its own system—naturally.
The state protects Certified Interior Designer (CID), which is offered through a private council rather than a state board.
Title protected: Certified Interior Designer.
Governing body: California Council for Interior Design Certification (CCIDC).
Requirements: Education, experience, and the IDEX exam.
Note: Many commercial firms still prefer CID or NCIDQ designers.
Georgia
Georgia’s title system is simple: demonstrate your qualifications, and you may use the protected title.
Title protected: Registered Interior Designer.
Governing body: Georgia State Board of Architects and Interior Designers.
Requirements: NCIDQ certification and education/experience.
Renewal: Biennial with CE hours.
Illinois
Illinois allows open practice while reserving the official title for those with NCIDQ credentials.
Title protected: Registered Interior Designer.
Governing body: Illinois Department of Financial and Professional Regulation.
Requirements: NCIDQ certification + registration.
Renewal: Every two years.
New Jersey
New Jersey blends accessibility with professionalism.
If candidates want the state-protected title, the best way to achieve that goal is to follow the national exam route.
Title protected: Certified Interior Designer.
Governing body: New Jersey State Board of Architects.
Requirements: NCIDQ + state-recognized education and practice hours.
Renewal: Biennial with CEUs.
New York
New York allows anyone to practice, but restricts the use of the professional title to those who’ve completed formal training.
Title protected: Certified Interior Designer.
Governing body: New York State Education Department.
Requirements: NCIDQ, education, and documented experience.
Renewal: Every three years.
Pennsylvania
Pennsylvania’s title law is recent and well-structured, designed to support safer, more standardized commercial interiors.
Title protected: Certified Interior Designer.
Governing body: Pennsylvania State Board of Architecture.
Requirements: NCIDQ, education, and supervised experience.
Practice: Open; only the title is regulated.
Texas
Texas recognizes the title Registered Interior Designer for professionals who’ve met the national benchmark set by NCIDQ.
Title protected: Registered Interior Designer.
Governing body: Texas Board of Architectural Examiners.
Requirements: NCIDQ + registration.
Privileges: Some permit authorities tied to titleholders.
Renewal: Annual with CEUs.
Virginia
Virginia keeps things straightforward: practice is open, but formal titles are reserved for those who’ve proven their training.
Title protected: Certified Interior Designer.
Governing body: Virginia Board of Architects, Professional Engineers, Land Surveyors, Certified Interior Designers, and Landscape Architects.
Requirements: NCIDQ certification.
Renewal: Biennial.
Wisconsin
Wisconsin’s approach mirrors the national standard, aligning its title protection with NCIDQ criteria.
Title protected: Registered Interior Designer.
Governing body: Wisconsin Department of Safety and Professional Services.
Requirements: NCIDQ.
Renewal: Biennial with CEUs.
States With No License Requirement but Employer-Based Standards
These are the “open range” states. Candidates can practice interior design freely without a license, certification, or protected title.
The state has no formal opinion on an interior designer’s entry into the field.
While this provides flexibility—especially for career changers—it also means that employers and clients rely heavily on a candidate’s education, portfolio, and professionalism.
Beyond the Decorative, and of Note:
Even in open-practice states, commercial design firms (and many residential ones) often prefer or require NCIDQ-certified designers to reduce liability and streamline permitting.
NCIDQ certification remains an optional but usually valuable asset for career advancement, impressing interior design firms and clients.
Below are the states, alphabetized, with brief snapshots of their landscapes to help candidates assess their viability as places to practice their profession.
Alaska
The Land of the Midnight Sun is completely unregulated; however, optional credentials help with mobility.
Arizona
Practice is unrestricted in the Sweetheart State, which is especially sweet for new designers building experience.
Colorado
It’s a wide-open system in Colorful Colorado; however, many commercial firms prefer NCIDQ credentials.
Connecticut
In the Land of Steady Habits, no license is needed; voluntary title recognition only.
Delaware
The First State is a fully open field with no state oversight.
Hawaii
No credentials are required in the Aloha State; here, design firms weigh training and experience.
Idaho
The Gem State requires no licensure or title restriction; certification is optional.
Indiana
Practice is unrestricted at the Crossroads of America; however, commercial firms may prefer formal credentials.
Iowa
The Hawkeye State keeps a keen eye on environmental aesthetics and is entirely open; NCIDQ is encouraged but optional.
Kansas
No licensure or protected titles are necessary in the Sunflower State.
Kentucky
It’s all open practice in the Bluegrass State; standards vary by employer.
Maine
Portfolio-driven hiring goes on in the Pine Tree State; no regulation.
Maryland
No state-level licensure requirements are the law of the land in Maryland.
Massachusetts
The Bay State practices open practice; design firms set their own standards.
Michigan
In the Great Lakes State, there’s no need for mandatory licensure; however, formal education is still highly valued.
Minnesota
The North Star State sees fit for unregulated practice; yet Minnesota sees that credentials add value.
Mississippi
It’s an open field in the Magnolia State, with no state oversight.
Missouri
The Show Me State needs no license or title laws.
Montana
The Treasure State is fully open; yet a portfolio carries weight.
Nebraska
Nebraska embraces open practice; 2024 changes relate to permitting rights—not practicing design.
New Hampshire
The Live Free or Die State has no regulations for interior design.
New Mexico
Open spaces, open practice is the way in New Mexico.
North Carolina
In North Carolina, the Tar Heel State, practice is unrestricted.
North Dakota
In the Flickertail State, mandatory licensure or title protection is unnecessary.
Ohio
Ohio, the Heart of It All, is open to practice; here, education and portfolio are often decisive.
Oklahoma
In the Sooner State, anyone may practice; “licensed interior designer” applies only to specific permitting roles.
Oregon
The Beaver State doesn’t need to chew on any licensure or title-control policies.
Rhode Island
A fully open interior design market is the way of Rhode Island.
South Carolina
No state-level regulation in the Palmetto State.
South Dakota
In South Dakota, interior design is a totally open practice.
Tennessee
No licensure or title laws for interior designers in Tennessee, the Big Bend State.
Utah
The open terrain of Utah is a completely open system.
Vermont
The Green Mountain State is an open practice space.
Washington
Washington is wide open.
West Virginia
Open practice; experience-based hiring is the status quo in West Virginia.
Wyoming
It’s no surprise that Wyoming, with its wide-open spaces, requires no licensure or title protection.
