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Dental Assistant
Total cost: $385-$810
4 sources cited · Last verified March 2026 · Every number on this page links to its official source
RDA Level I / RDA Level II
Credential
Not Required
DANB CDA
Required
Radiology Cert
Available
Expanded Functions
24 hrs
CE Hours
$385-$810
Total Initial Fees
Formal Education & Training
VerifiedFormal Education
Not Required
Program Type
CODA-accredited program or OJT; Level II requires additional education/certification
CODA Accreditation Not Required
On-the-Job Training (OJT) Allowed
Program Length
9-12 months (formal program) or OJT equivalent
Minimum Education
High school diploma or GED
Many states allow dental assistants to enter the profession through on-the-job training (OJT), while others require completion of a CODA-accredited dental assisting program. Requirements vary significantly by state and credential level.
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DANB CDA, Radiology & State Exams
VerifiedNot Required
DANB CDA Certification
Required
Radiology Certification
DANB CDA Details
DANB CDA accepted but not required; may satisfy Level II requirements
Radiology Certification Details
Radiology certification required; DANB RHS or board-approved equivalent accepted
CPR Certification Required
No State-Specific Exam
No DC-specific exam; national certifications (DANB) accepted for Level II registration
The DANB Certified Dental Assistant (CDA) credential is the nationally recognized standard, though not all states require it. Radiology certification is commonly required to take dental X-rays. CPR certification is required in most states.
Study Materials & Exam Prep — DANB CDA
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Allowable Expanded Duties
VerifiedAllowed
Coronal Polishing
Allowed
Sealant Application
Allowed
Fluoride Application
Allowed
Impressions
Allowed
Temporaries
Not Allowed
Nitrous Oxide Monitoring
Separate EFDA Certification Required for Expanded Functions
Expanded functions allow dental assistants to perform additional procedures beyond basic chairside duties. Some states require a separate Expanded Functions Dental Assistant (EFDA) credential, additional training, or specific coursework to perform these duties.
Supervision Requirements
VerifiedSupervision Levels
Direct and general supervision depending on Level I vs Level II and procedure
Direct Supervision Procedures
Level II expanded functions, restorative procedures
Indirect Supervision Procedures
Coronal polishing, fluoride application, impressions (Level II)
General Supervision Procedures
Radiographs (with certification), sterilization, patient education
Dental assistants work under varying levels of supervision depending on the procedure. Direct supervision means the dentist must be physically present and authorize the procedure. Indirect supervision means the dentist is on-site. General supervision means the dentist has authorized the procedures but need not be on the premises.
| Fee | Amount |
|---|---|
Application Fee | $85 |
Exam Fee | DANB CDA: $425 (320 questions, 5.25 hours, Pearson VUE); DANB RHS: $300 (100 questions, 1.75 hours, Pearson VUE) |
License Fee | Included in application fee |
Renewal Fee | $85 |
Radiology Cert Fee | DANB RHS: $300 |
Total Initial Fees Includes application ($85), DANB RHS ($300); optional DANB CDA ($425) for Level II. Penalty fees: $250 (first offense), $500 (second offense) for practicing without registration. | $385-$810 |
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Renewal & CE Requirements
Verified2 years (biennial)
Renewal Period
24 hrs
CE Hours Required
Yes
CPR Renewal
Required CE Topics
Renewal Fee
$85
Regulatory Board
Dental assistant credentials must be renewed on schedule. Most states require continuing education covering infection control, radiology safety, and dental practice updates. CPR certification renewal is required in most jurisdictions.
Out-of-State Reciprocity
VerifiedAccepts Out-of-State Credentials
Endorsement Available
Yes
Portability Details
DC reviews credentials from other states individually; DANB CDA holders may qualify for Level II registration
Reciprocity Requirements
Dental assistant credential reciprocity varies by state. States with similar requirements may offer endorsement pathways, while others require a full application including verification of education, certification, and work experience.
Moving to another state? Use our Transfer Tool to see what you need →
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DC's two-tier dental assistant system (Level I and Level II) is paired with an explicit penalty structure - $250 for a first offense and $500 for a second offense for practicing without registration. This is one of the few jurisdictions with codified, escalating financial penalties specific to unlicensed dental assisting.
DC has a two-tier registration system: Level I (basic) and Level II (expanded functions).
DC enforces a structured penalty system: $250 for first offense and $500 for second offense for practicing without registration.
24 CE hours required per biennial renewal period - one of the higher CE requirements for dental assistants.
As a federal district (not a state), DC regulations are governed by the DC Municipal Regulations rather than state statutes.
Dental Assistant requirements in nearby states
See how District of Columbia compares: Dental Assistant License Fees by State — Cheapest to Most Expensive →
Related Guides
Explore requirements for other professional licenses in District of Columbia.
Dental Assistant Schools in District of Columbia
Compare approved training programs, costs, and requirements.
Study guides for the DANB CDA certification exam.
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Official Sources
Dental Assistant requirements in District of Columbia verified against District of Columbia Board of Dentistry, March 2026.
Moving to District of Columbia? Use our free Transfer Tool to see what you need →
Already licensed elsewhere? See how to transfer your Dental Assistant license to District of Columbia →
Transfer your Dental Assistant license from District of Columbia to: Maryland → | Virginia →
District of Columbia has specific certification requirements for dental assistants. An on-the-job training pathway is available. All licensing is managed through the District of Columbia Board of Dentistry.
Requirements vary by state. Always verify current requirements with your state licensing authority.