Idaho publishes something most states hide: an actual fee schedule for x-ray licensure, with a dental-specific renewal cycle. Dental offices sit on a four-year cycle at $50 per facility plus $25 per machine, with a late penalty at day 31 and termination at day 91. The dental board side is in transition, with the Division of Occupational and Professional Licenses moving the Board of Dentistry to biennial licensure as of August 2026. And Idaho's non-compete statute is one of the few that puts a number on the page: 18 months is presumed reasonable for a key employee.
Key takeaways
- The Board of Dentistry now sits under the Division of Occupational and Professional Licenses (DOPL), which began transitioning dentistry to biennial licensure as of August 1, 2026.
- Board rule IDAPA 24.31.01, Section 200.06 requires a licensee renewing an active status license to report 30 oral health or health-related continuing education hour credits. DOPL describes the hygienist requirement as 30 hours per biennial renewal period, an increase of 6 hours every two years.
- X-ray licensure under IDAPA 16.02.27 runs on a four-year cycle for dental, chiropractic, podiatric and veterinary facilities, at $50 base plus $25 per machine. Late penalty is $50 at day 31 and licensure terminates at day 91.
- Idaho Code 44-2704 creates a rebuttable presumption that a post-employment term of 18 months or less is reasonable as to duration, and that a restriction limited to the areas where the key employee provided services or had significant presence or influence is reasonable as to geography.
Rules change, so verify before acting. Everything below was checked against an official Idaho or federal source in September 2026. Idaho's dental licensure cycle is actively changing, and the non-compete statute has been amended more than once. Confirm with the agency and with Idaho counsel before you act.
Who regulates what
| Topic | Agency | Official link |
|---|---|---|
| Dentist and hygienist licensure and renewal | Idaho State Board of Dentistry, Division of Occupational and Professional Licenses | Board of Dentistry |
| Board rules, including continuing education | IDAPA 24.31.01 | Statutes, rules and guidance |
| Dentistry statutes | Idaho Code Title 54, Chapter 9 | Idaho Code Title 54 Chapter 9 |
| X-ray licensure and forms | Idaho Department of Health and Welfare, Radiation Control Program | X-ray licensure |
| Radiation control rules, fees and operator training | IDAPA 16.02.27 | Idaho Radiation Control Rules |
| Non-compete agreements | Idaho Code Title 44, Chapter 27 | Agreements and covenants protecting legitimate business interests |
| Amalgam separators and dental wastewater | US EPA rule, enforced by your local pretreatment control authority | EPA dental effluent guidelines |
License renewal and continuing education
Idaho's dental board is one of the professional boards consolidated under the Division of Occupational and Professional Licenses, and DOPL states on the board's page that it began transitioning the Board of Dentistry to biennial licensure as of August 1, 2026. If your renewal has historically been annual, expect the cycle and the CE accounting to shift, and read the board news notices rather than assuming your old pattern holds.
On hours, board rule IDAPA 24.31.01 Section 200.06 requires a licensee renewing an active status license to report 30 oral health or health-related continuing education hour credits to the Board. DOPL's own summary describes the hygienist requirement as 30 hours during each biennial renewal period, and characterizes it as an increase of 6 hours every two years, which is what you would expect when a 24-hour biennial requirement becomes a 30-hour one.
The phrase to pay attention to is oral health or health-related. That is broader than the clinical-only language some states use, but it is not unlimited, and practice management or financial coursework is the category most likely to be rejected. Read Section 200 in full before you buy a package of hours.
X-ray equipment: licensure and inspection
Idaho calls it x-ray licensure rather than registration, and the program sits with the Department of Health and Welfare's Radiation Control Program. Facilities that own and operate x-ray producing machines are covered, including hospitals, clinics, dental offices, veterinarians, chiropractors, industry and academic institutions. Federal facilities are excluded.
The fee and cycle table in IDAPA 16.02.27 Section 004.01 is unusually clear:
| Facility type | Cycle | Fee |
|---|---|---|
| Dental, chiropractic, podiatric, veterinary | 4 years | $50 base plus $25 per machine |
| Hospital, clinic, medical | 2 years | $50 base plus $25 per machine |
| Industrial, research, academic, security | 10 years | $50 base plus $25 per machine |
Section 004.03 offers an alternative flat annual facility fee of $1,000 for facilities running an in-house radiation safety program, which is aimed at large institutions rather than a three-operatory dental office. Section 004.02 sets the penalties: a $50 late fee assessed at day 31, and licensure terminates at day 91.
A four-year renewal cycle is a gift and a trap. Nobody forgets an annual bill. Almost everybody forgets one that arrives every fourth year, and the penalty structure means the cost of forgetting is not just the $50, it is losing licensure entirely at day 91.
Two other mechanics matter. Section 005 requires shielding plans to be submitted within thirty days before conducting imaging procedures, so a buildout or a new imaging room is a filing with a deadline attached. And the program publishes a specific set of forms: an x-ray licensure application, an x-ray change of information form, an x-ray notice of installation, a dosimetry waiver request, and a disposal of radiation producing machines resource, plus a parallel set for service providers.
Set a four-year calendar reminder the day your x-ray licensure is issued, and a second one 60 days earlier. Then keep the renewal notice address current with the program, because a notice sent to a former office manager's email is the most common way a four-year cycle gets missed.
Who may take radiographs
IDAPA 16.02.27 Section 009.02 sets out the training an operator must complete, and it is a substantive list: fundamentals, radiation safety, dose units, biological effects, machine characteristics, methods of dose control, standards, survey instruments, monitoring equipment, proper use of the machine, and site-specific operating and emergency procedures. That is the radiation program's requirement.
The dental board's own rules in the sections we read did not address dental assistant radiography or set a separate credential, so confirm with the Board of Dentistry whether a board-level requirement applies on top of the radiation program's operator training. Keep documentation of each operator's training either way, because Section 009.02 gives an inspector a clear checklist to ask against.
For general mechanics, see dental x-ray registration and inspections, plus intraoral x-ray units and panoramic units.
Buying and selling used equipment in Idaho
Each machine has a price tag on the license
At $25 per machine on a four-year cycle, the direct cost of an extra unit is small, but the accuracy of the machine count is not optional. Adding a used intraoral unit or a pan means filing the x-ray notice of installation, and a change of information form when the details on file change.
Disposal has its own guidance document
The program publishes a resource on disposal of radiation producing machines. Read it before you scrap a tube head or hand an old unit to a buyer, and keep whatever documentation the process generates. Our guides to disconnecting dental equipment safely and dental waste disposal cover the practical side.
Shielding plans run on a 30-day clock
Because shielding plans are due within thirty days before imaging begins, an imaging install has a paperwork lead time. If you are buying a used CBCT for a room that has never held one, get the shielding plan moving before the unit ships, not when it arrives on the dock.
Diligence on a practice purchase
Ask for the current x-ray licensure certificate, the machine list, the shielding plans, and the operator training records for anyone who takes radiographs. Then confirm the license expiration date, because a four-year cycle means the seller may be handing you a license with three years left or three months. See the practice acquisition due diligence checklist.
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 city wastewater department. Ask what it expects from an incoming owner. See amalgam separators.
Run the pre-purchase equipment checklist and read the hidden costs of buying used equipment before you commit.
Non-competes and employment
Idaho Code Title 44, Chapter 27 governs agreements and covenants protecting legitimate business interests. It contains four sections: 44-2701 on enforceability, 44-2702 on definitions, 44-2703 on construction and enforcement, and 44-2704 on rebuttable presumptions.
Section 44-2701 permits a key employee or key independent contractor to enter into a written agreement restricting post-employment competition, and makes such a covenant enforceable when it is reasonable as to its duration, geographical area, type of employment or line of business, and does not impose a greater restraint than is reasonably necessary to protect the employer's legitimate business interests. The statute applies to key employees and key independent contractors, not to every worker.
Section 44-2704 puts numbers and defaults on that standard:
- A post-employment term of 18 months or less is presumed reasonable as to duration.
- A covenant is presumed reasonable as to geographic area if it is restricted to the geographic areas in which the key employee or key independent contractor provided services or had a significant presence or influence.
- A restriction limited to the type of employment or line of business conducted by the key employee is presumed reasonable as to scope.
Those presumptions are rebuttable, and the party challenging the restriction has to present evidence that it exceeds reasonable limits. For a dental associate, the practical reading is that a covenant of 18 months or less, drawn around the offices where you actually worked and limited to general dentistry, starts the argument in the employer's favor.
Two cautions. First, the definitions in 44-2702 matter as much as the presumptions, because the entire framework applies to key employees and key independent contractors, and whether an associate dentist is one is not something the presumption answers. Second, Idaho has amended this chapter more than once in the past decade, including provisions on burden of proof, and we read the current sections rather than the amendment history. Have Idaho counsel read the chapter as it stands today against your specific agreement.
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 new renewal dates for Idaho dental licenses under the biennial transition. DOPL says the transition began August 1, 2026 and points licensees to its board news notices.
- Whether the 30-hour CE requirement applies identically to dentists and dental hygienists after the transition, and what mandatory topics apply.
- How often Idaho inspects dental x-ray facilities. The radiation control rules we read do not state an interval.
- Whether the Board of Dentistry imposes a separate dental assistant radiography credential on top of the radiation program's operator training.
- Whether an associate dentist qualifies as a key employee under Idaho Code 44-2702, and how Idaho courts have treated that question.
- Sales and use tax treatment of dental equipment, including private-party purchases. Confirm with the Idaho State Tax Commission and your CPA.
- Idaho limits on non-dentist ownership of a dental practice. Confirm with a dental-specific attorney.
Where to verify
- Idaho State Board of Dentistry: board home and statutes, rules and guidance
- Board rules: IDAPA 24.31.01
- Idaho Department of Health and Welfare: x-ray licensure
- Idaho Administrative Rules: IDAPA 16.02.27, Idaho Radiation Control Rules
- Idaho Legislature: Idaho Code 44-2701 and 44-2704 on rebuttable presumptions
- 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
The single highest-value thing an Idaho owner can do this week is find the expiration date on the x-ray licensure certificate and put two reminders in the calendar, because a four-year cycle with a day-91 termination is built to be forgotten. After that, confirm your new dental license renewal cycle with DOPL as the biennial transition lands, keep operator training records that match the Section 009.02 list, and file the notice of installation and change of information forms when equipment moves.
If you are negotiating an associate contract, 18 months is the number to know. A covenant longer than that loses the statutory presumption and has to be defended on its own merits.
Related reading: x-ray registration and inspections, non-compete agreements for dentists, 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.