California's Requirements for Out-of-State Hygienists

California is one of the harder states for an experienced hygienist to move into, and the reason is usually not the license itself. It is the training California expects every hygienist to have, in soft tissue curettage, local anesthesia and nitrous oxide-oxygen analgesia (SLN), plus a few documents other states never ask for. Plan for them and the application is manageable.

Who licenses hygienists in California?

The Dental Hygiene Board of California (DHBC), not the Dental Board of California. The DHBC issues the RDH license and the Registered Dental Hygienist in Alternative Practice (RDHAP) license, and its applications run through the state's BreEZe system. The DHBC's materials carry a blunt warning: "It is a criminal offense to practice dental hygiene in California without first receiving an RDH license," unless the federal Servicemembers Civil Relief Act applies.

Which route fits an out-of-state hygienist?

The DHBC lists two RDH routes.

• Clinical exam or California graduation. Open to graduates of a California program since January 1, 2024 who apply within three years of graduating, or to anyone who passed a board-approved clinical exam (WREB, ADEX or CRDTS) within the three years before applying.
• Licensure by Credential (LBC). For hygienists licensed in another state for at least five years immediately before applying, with at least 750 clinical practice hours per year; or full-time dental hygiene faculty with 750 clinical hours a year; or hygienists with at least three years of clinical practice who file a pending contract to practice and commit to completing the remaining two years.

The DHBC also states that "dental hygiene education and licensure in another country, even in dentistry, is not recognized or accepted in California."

Which documents does the LBC checklist require?

The DHBC's checklist for Licensure by Credential lists:

• a $200 application fee;
• your diploma from an accredited dental hygiene program;
• your state or regional clinical exam score report;
• your National Board Dental Hygiene Examination score;
• Out-of-State Radiation Safety Certification, which your program director completes with a seal or stamp to certify an ADA radiation safety program;
• the Certification of Dental Hygiene Clinical Practice form;
• proof of 25 hours of continuing education, including at least 2 hours on the California Dental Practice Act and 2 hours of infection control from board-approved providers, and BLS (counted at a maximum of 4 hours);
• license certification from every state that ever issued you a professional or vocational license, whatever its status;
• Live Scan or hard-card fingerprints and a current photograph.

Once the DHBC approves the application, you schedule and pass the California Law and Ethics exam, and then the license issues.

Why does SLN training hold files up?

The DHBC requires graduates of programs outside California to complete training in Soft Tissue Curettage, Local Anesthesia, and Nitrous Oxide and Oxygen Analgesia that meets California standards. If your program's training was not board-approved, you have two options. You can take the courses from a California-approved provider; the board notes they "are only available in California." Or, since July 1, 2022, you can apply separately for the board to review your out-of-state SLN education for equivalence. That review costs $500, is non-refundable, and if the board finds your training unacceptable, the fee "will not be refunded or applied to any other licensing requirement." Send every syllabus, hour log and clinical record you can find, because the board judges equivalence from the documents.

For how other states treat hygienist anesthesia, see our local anesthesia permits guide.

How long does the background check take?

The DHBC says a license "cannot be issued until the Dental Hygiene Board of California has received and reviewed criminal background information from both the Federal Bureau of Investigation and the California Department of Justice," and that this "can take much longer if a criminal history does exist." Live Scan is only available in California, so hygienists applying from another state often use hard fingerprint cards; the DHBC asks applicants to contact it for Live Scan forms and to request hard cards. Our fingerprints guide covers the mechanics.

Is the RDHAP license a separate application?

The Registered Dental Hygienist in Alternative Practice is a separate license. The DHBC lists these eligibility requirements: completion of an RDHAP program, a current RDH license, at least 2,000 clinical practice hours in the 36 months before applying, and a bachelor's degree or the equivalent (120 semester or 180 quarter units). The DHBC's list also includes acceptance into a Health Workforce Pilot Project phase. The practice settings and services an RDHAP may offer are set by the Business and Professions Code, so read the statute before planning a practice. Our public health and collaborative practice permits post compares similar licenses in other states.

Where do California files usually go wrong?

1. Assuming an old clinical exam qualifies for the exam route. It must be within three years of the application.
2. Counting hours you cannot certify. The Certification of Dental Hygiene Clinical Practice form has to back up the five years and 750 hours a year.
3. Taking CE from providers California does not approve for the mandatory Practice Act and infection control hours.
4. Leaving out an expired or inactive license from another state.
5. Waiting on SLN until the rest of the file is done.

Can we prepare the California file for you?

Yes. Our Dental Hygienist License service is $449 per state; add the Hygienist Local Anesthesia & Nitrous Permit service ($199) for an SLN equivalency packet. We collect verifications and scores, assemble the CE and radiation safety proof, build the SLN documentation, coordinate fingerprints and track the file. You complete, sign, pay for and submit the BreEZe application, and you take the Law and Ethics exam yourself. Board and vendor fees are separate. See California dental licensing for the state overview.