Hawaii licenses the dental facility, not just the machine. Before you install, possess or use an ionizing radiation producing machine, the practice needs a Radiation Facility License from the Department of Health's Indoor and Radiological Health Branch, and that license has to be posted where patients can see it. The dental board side is on a straightforward biennial cycle, but Hawaii publishes its CE totals per cycle and prorates them by when your license was issued, so the number you owe depends on your start date.
Key takeaways
- Dentist and dental hygienist licenses renew biennially, in odd-numbered years, with a December 31 deadline. Community service dental hygienists renew annually.
- CE totals are published per cycle and prorated. For the period January 1, 2024 through December 31, 2025, dentists licensed before January 1, 2024 owed 38 hours (at least 17 clinical, at least 6 ethics, 1 to 4 BLS), and hygienists owed 20 hours (at least 11 clinical, at least 2 ethics).
- A dental facility must hold a Radiation Facility License before installing, possessing or using an x-ray machine. The license is valid two years, renews by March 31 in even-numbered years, and must be posted where users of the facility can see it.
- Facility license fees are $30 for a facility with one to four x-ray machines and $50 for a facility with five or more. Radiological health inspections are conducted every three to five years for dental facilities.
Rules change, so verify before acting. Everything below was checked against an official Hawaii or federal source in September 2026. The CE figures we could read describe the cycle that ended December 31, 2025, and Hawaii republishes them each period. Confirm the current numbers with the board before you buy CE.
Who regulates what
| Topic | Agency | Official link |
|---|---|---|
| Dentist and hygienist licensure and renewal | Hawaii Board of Dentistry, DCCA Professional and Vocational Licensing | Board of Dentistry |
| Renewal requirements and CE totals | DCCA Professional and Vocational Licensing | Dental renewal FAQs |
| Application forms and publications | Hawaii Board of Dentistry | Forms and publications |
| Radiation facility licensing for dental offices | Hawaii Department of Health, Indoor and Radiological Health Branch | Radiation Section |
| Dental facility radiation rule guide | Hawaii Administrative Rules Chapter 11-45 | Dental facilities rule guide |
| Radiation forms and applications | Hawaii DOH Indoor and Radiological Health Branch | Radiation forms and links |
| Restraint of trade and non-competes | Hawaii Revised Statutes Chapter 480 | HRS Chapter 480 |
| Amalgam separators and dental wastewater | US EPA rule, enforced by your local pretreatment control authority | EPA dental effluent guidelines |
License renewal and continuing education
The board renews dentists and dental hygienists biennially in odd-numbered years with a December 31 deadline. Community service dental hygienists are the exception and renew annually.
CE is published per cycle and prorated by licensure date. For the period running January 1, 2024 through December 31, 2025, the board's renewal FAQ set it out as follows.
| Licensed | Dentist total | Dentist clinical | Dentist ethics | Hygienist total |
|---|---|---|---|---|
| Before January 1, 2024 | 38 hours | at least 17 | at least 6 | 20 hours (at least 11 clinical, at least 2 ethics) |
| January 1 to December 31, 2024 | 22 hours | at least 9 | at least 6 | 10 hours (at least 6 clinical, at least 2 ethics) |
| January 1 to December 31, 2025 | exempt | n/a | n/a | exempt |
Basic life support counts for 1 to 4 hours, and the course must be sponsored by the American Red Cross or the American Heart Association. Clinical hours must be directly related to the provision of oral health care.
The ethics minimum is what makes Hawaii different. Six hours of ethics for a dentist in a two-year period is a large share of a 38-hour requirement, and it is not a category most CE vendors push. Plan for it early rather than scrambling in December of an odd year.
Because Hawaii republishes the hour totals each cycle, pull the current dental renewal FAQ from the DCCA site in the spring of the renewal year and work from that document. Do not carry forward the number a colleague used two cycles ago.
X-ray equipment: licensing and inspection
Hawaii's dental radiation rules live in Hawaii Administrative Rules Chapter 11-45, and the Department of Health publishes a dental-specific guide to them. The core requirements:
- Radiation Facility License required before installing, possessing or using an ionizing radiation producing machine. It is valid for two years and must be renewed by March 31 in even-numbered years.
- Posting: the license must be posted in a location visible to users of the dental facility.
- Fees: $30 for a single facility with one to four x-ray machines, $50 for a facility with five or more machines, and $30 for a radiation services license.
- Service providers: anyone selling, leasing, installing or servicing dental x-ray machines needs a Radiation Service License, renewed by March 31 in odd-numbered years.
- Changes: submitted on a Request for Amendment form, covering changes in the number or type of x-ray machines and changes to license information.
- Inspections: radiological health inspections are conducted every three to five years for dental facilities.
The rule guide also sets operating expectations an inspector will look for. Operators must receive training on the procedures for each specific machine, and the manufacturer's operating manual must be available to all operators. Operators must maintain a protected position during exposure, and patients should not be routinely held: only trained personnel wearing lead apron protection may assist, and only when necessary.
Note the two-cycle structure, because it is easy to confuse. Facility licenses renew in even years, service licenses in odd years, and dental professional licenses in odd years on a different date entirely. Three different renewal clocks means three separate calendar entries.
Who may take radiographs
The Chapter 11-45 guide states that dentists, dental hygienists and dental assistants may operate the equipment under the jurisdiction of the dental board, and focuses its own requirements on machine-specific training and the availability of the operating manual. Hawaii separately regulates radiologic technology under HRS Chapter 466J, and we did not confirm how that chapter treats dental assistants. Confirm the current credential expectation with the Board of Dentistry before you assign radiographs to a new hire.
For general mechanics, see dental x-ray registration and inspections, plus intraoral x-ray units and panoramic units.
Buying and selling used equipment in Hawaii
The machine count sets your fee tier
Hawaii charges $30 for a facility with one to four machines and $50 for five or more. That is not a large sum, but the count matters for a different reason: if your license says four machines and you have six in the building, your license is wrong. Adding a used intraoral unit is a Request for Amendment, not a silent change.
Buy from a licensed service provider where you can
Hawaii licenses the companies that sell, lease, install and service dental x-ray machines. Buying through a licensed provider gives you an installer who knows the state's rules and a paper trail. If you buy privately from the mainland, you still need someone licensed here to install and service it, so line that up before you bid.
Freight and service access change the math
Like Alaska, Hawaii is a state where the landed cost and the service call drive the decision more than the purchase price. Confirm that parts and a technician are available for the specific model before you buy, and price ocean freight and inter-island transport into the acquisition. See shipping dental equipment, parts availability, and the hidden costs of buying used equipment.
Amalgam separators and wastewater
The federal EPA dental rule at 40 CFR Part 441 applies if you place or remove amalgam and discharge to a publicly owned treatment works: a compliant separator, best management practices (no flushing scrap amalgam, no oxidizing line cleaners), and a one-time compliance report filed with your pretreatment control authority, usually the county wastewater agency. Ask what it expects at a change of ownership. See amalgam separators and dental waste disposal.
Run the pre-purchase equipment checklist before you commit.
Non-competes and employment
Hawaii treats non-competes through its antitrust statute rather than an employment statute. HRS 480-4(a) declares illegal every contract, combination in the form of trust or otherwise, or conspiracy in restraint of trade or commerce in the State. That is the starting position: a restraint is unlawful unless it fits an exception.
Subsection (c) lists exceptions for covenants ancillary to a legitimate purpose, provided they do not substantially lessen competition. Three matter here:
- A seller may covenant not to compete within a reasonable area and for a reasonable period of time in connection with the transfer of a business.
- Partners may agree not to compete with the partnership within a reasonable area and for a reasonable period after withdrawal.
- An employer may restrict an employee or agent from using the employer's trade secrets in competition, during or after employment, as reasonably necessary for protection.
Subsection (d) separately voids non-compete and non-solicit clauses in employment contracts at technology businesses, defined as businesses deriving the majority of their income from software or information technology development. A dental practice is not a technology business, so that subsection does not help a dentist.
Read the list carefully and you can see the shape of the issue. The sale-of-business and partnership exceptions map neatly onto a practice sale and a partner buyout. The employment exception is framed around trade secrets, which is a narrower idea than a general restriction on where an associate may practice. Whether a conventional associate non-compete fits within 480-4 is exactly the question to put to a Hawaii employment attorney before you sign or issue one.
At the federal level, the FTC's non-compete rule is not in effect. The Commission voted on September 5, 2025 to dismiss its appeals and accede to the vacatur, so state law governs. See our national overview of non-compete agreements for dentists, the associate contract red flags guide, and the associate contract review checklist.
What we could not confirm
- The CE hour totals for the current licensing cycle. The figures above are for the period that ended December 31, 2025.
- Whether HRS Chapter 466J on radiologic technology imposes any credential on dental assistants who expose radiographs, and what the dental board requires.
- How Hawaii courts have applied HRS 480-4 to a dentist's associate non-compete. The statute sets the framework but the application is a question for counsel.
- Whether Hawaii's general excise tax treats used dental equipment purchases differently from new. Confirm with the Hawaii Department of Taxation and your CPA.
- Hawaii limits on non-dentist ownership of a dental practice. Confirm with a dental-specific attorney.
- What the Department of Health requires from an incoming owner when a dental facility changes hands. The rule guide describes amendments but not transfers specifically.
Where to verify
- Hawaii Board of Dentistry: board home, forms and publications, and the dental renewal FAQs
- Hawaii Department of Health, Indoor and Radiological Health Branch: branch home, Radiation Section, forms and links, and the dental facilities rule guide for HAR 11-45
- Hawaii State Legislature: HRS Chapter 480, including section 480-4
- US Environmental Protection Agency: dental effluent guidelines, 40 CFR Part 441
- Federal Trade Commission: September 2025 statement on the non-compete rule
Putting it to work
Hawaii runs on three clocks. Put March 31 of the next even-numbered year on the calendar for the facility radiation license, December 31 of the next odd-numbered year for your professional license, and a mid-cycle checkpoint for the ethics hours that are easy to leave until last. Keep the radiation facility license posted where patients can see it, keep the manufacturer's operating manual accessible to every operator, and file a Request for Amendment any time the machine count or type changes.
Related reading: x-ray registration and inspections, shipping dental equipment, the compliance chapter of the practice operations guide, and the rest of the state resources directory.
This guide is educational content and does not constitute legal, financial, tax, or clinical advice. Laws and regulations vary by state and change over time. Consult your own dental-specific attorney, CPA, and state dental board before acting.