This article reflects rules effective as of June 30, 2026. A second rulemaking hearing scheduled for July 8, 2026 may introduce additional changes; organizations with Colorado operations should monitor updates from the Colorado Dental Board directly.
Every so often, a single line in a state regulation reshapes an entire industry’s operating assumptions. Colorado just wrote one of those lines. It’s the kind of change that looks small on paper and turns out to matter enormously in practice, which is exactly when a closer look is worth the time.
On June 30, 2026, a new set of rules under Colorado’s Dental Practice Act took effect, and buried inside the fine print is a provision that every dental support organization operating in or eyeing the state needs to understand immediately: a Dental Service Organization may not serve as the proprietor of a dental practice. Full stop. And a dentist who works at a DSO that is functioning as the proprietor of a practice can now face disciplinary action for it.
This isn’t a hypothetical or a proposal still working its way through committee. It’s law, and it’s already in effect.
How We Got Here
The story starts in 2025, when the Colorado Dental Association successfully pushed through the Dental Practice Act Sunset bill, known as SB25-194. Sunset bills are a routine part of how states keep licensing boards alive, but this one carried real weight: it renewed the statutory authority of the Colorado Dental Board while also updating the substance of what the Board regulates.
Passing the bill was only step one. Since then, the Colorado Dental Board has spent the better part of a year in stakeholder meetings, hammering out the actual rules that implement the statute. The Board split that rulemaking into two phases. The first set of rules was adopted on April 30, 2026, and became effective June 30. A second round is scheduled for a rulemaking hearing on July 8, 2026, covering additional topics like teledentistry, itinerant surgery, and neuromodulator and dermal filler administration.
It’s the first phase, the one already in force, that carries the headline for anyone in the DSO space.
What Changed Under the Colorado Dental Practice Act?
Colorado has long required that only a Colorado-licensed dentist may own a dental practice, and only a licensed dentist or dental hygienist may own a dental hygiene practice. That’s not new. What the updated rules do is reinforce and sharpen that requirement in a way that leaves far less room for the kind of management service organization structures many DSOs have relied on.
The new rule language makes clear that a DSO cannot serve as proprietor of a dental practice. And critically, the accountability doesn’t stop at the entity level. A dentist who works within a DSO-owned or DSO-controlled practice arrangement can be personally subject to discipline by the Board.
None of this means the DSO model is unworkable in Colorado. It means the model has to be built with more precision than it may have required in other states, and that precision is very much achievable with the right guidance.
There is one notable carve-out worth flagging for real estate and facilities planning: an entity that simply owns the physical space where a dental office operates, and leases that space to the practice, is not considered a proprietor. Landlord relationships remain untouched. Management and ownership relationships do not.
The Board also reinforced a related, practical requirement: a Practice Ownership Form must be available on-site during business hours if requested, along with the treating professional’s license. In other words, Colorado isn’t just tightening the definition of who can own a practice. It’s giving itself an enforcement mechanism to check compliance in real time.
Why This Matters Beyond Ownership Structure
For groups that have built growth strategies around Colorado, this rule change touches far more than a legal technicality. It affects:
Deal structuring: Any affiliation, acquisition, or support agreement in the state now needs to be evaluated against a much stricter proprietor standard. Structures that may have passed muster under looser interpretation elsewhere could expose both the organization and the affiliated dentists to risk in Colorado specifically.
Provider recruitment and retention: Dentists considering a role at a DSO-affiliated practice in Colorado need clarity on exactly who holds ownership and how that ownership is documented, since their own license is now explicitly on the line.
Existing affiliations: Any current arrangement in the state should be reviewed against the new rule text without delay. This is not a provision to revisit at the next contract renewal cycle.
The Rest of the Rulemaking Package
The ownership rule is the piece most directly relevant to DSOs, but it arrived alongside a broader set of updates that practice owners and clinical leaders should have on their radar:
Anesthesia supervision changes: Local anesthesia administered by dental hygienists moved to unsupervised status, while nitrous oxide administration shifted to indirect supervision for hygienists and supervision for assistants. The Board also streamlined the anesthesia permit process for dentists nearing completion of an accredited residency.
Immunization authority: Colorado established a new regulatory framework authorizing dental professionals to administer certain immunizations, including flu, HPV, and COVID vaccines, to patients age six and older, with specific training thresholds for dentists and hygienists.
Continuing education: New licensees must now complete a jurisprudence education requirement, and OSHA bloodborne pathogen training is now a mandated CE component.
Record retention: Dental labs must now retain copies of work orders for at least two years, and practices must have a documented plan for transferring patient records in the event a practice closes.
A second, more comprehensive rulemaking hearing is scheduled for July 8, 2026. This hearing will address teledentistry, itinerant surgery, and aesthetic procedures like neuromodulators and dermal fillers. The Colorado Dental Association has indicated a full synopsis of that round will follow later this year.
How DSOs Should Respond to Colorado’s New Dental Practice Act
If an organization has any footprint in Colorado, whether through direct affiliation, a support services agreement, or plans to expand into the state, this is the moment for a structural review, not a wait-and-see approach. It’s a familiar moment for organizations that have weathered regulatory shifts before, and the path through it tends to follow a similar shape. A few immediate steps worth prioritizing:
- Audit current ownership documentation for every Colorado-affiliated practice against the new proprietor standard.
- Confirm the Practice Ownership Form and licensure documentation are accessible on-site, as the Board can request them during business hours.
- Loop in state-specific regulatory counsel before finalizing any new Colorado affiliation, since the compliance bar here is now measurably higher than in many other states.
- Watch the July 8 rulemaking hearing closely, since the second phase will round out the regulatory picture for the year.
Colorado is not the first state to scrutinize the DSO ownership model, and it will not be the last. But the specificity and enforceability written into these new Colorado DSO ownership rules sets a tone other states may look to as they consider their own reforms. For DSOs building long-term strategy, the lesson isn’t just about Colorado. It’s a signal that ownership structure, once treated as a back-office legal detail, is quickly becoming a front-line strategic and compliance priority. It’s also, as always, a reminder that the organizations that fare best through regulatory change are rarely the ones moving fastest. They’re the ones moving with the clearest guidance.
This article is intended for informational purposes only and does not constitute legal advice. Dental practices and DSOs should consult qualified legal counsel regarding the application of Colorado’s Dental Practice Act and related regulations to their specific ownership or management structure.
Further Reading
For readers looking to review the legislation and rulemaking process in greater detail, the following resources provide additional context:
- Colorado Dental Association: Rulemaking Underway for the Dental Practice Act — Some Rules Effective June 30(Includes an overview of the first phase of rulemaking and upcoming Colorado Dental Board actions.)
- Colorado Dental Board: Dental Sunset Information (SB25-194 Rulemaking) (Official Colorado Dental Board resource with rulemaking updates, timelines, and stakeholder information.)
- Colorado General Assembly: SB25-194 – Sunset Dental Practice Act (Full bill text and legislative summary for the Dental Practice Act updates.)
- Colorado Dental Board Homepage *(Current rulemaking notices, hearing materials, draft rules, meeting recordings, and regulatory updates.)