Certifications provide assurance of an individual’s competency to do their job.
The first step in preparing for the Certified in Disease Intervention (CDI) exam is to determine your eligibility.
Be sure to review the full list of eligibility requirements below.
You can also use our Eligibility Checker to help you determine if you’re currently eligible.
Eligibility Requirements โ U.S. Only
The CDI pilot project is supported by the CDC through funding opportunity CDC-RFA-CK20-2003 subawarded by ASPPH to NBPHE and runs through September 29, 2026. During the pilot phase of this project, only U.S. citizens or lawful permanent residents currently residing in the United States or U.S. territories, or on a U.S. military installation are eligible to take the exam.
Eligibility may be revised after September 30, 2026. Disease intervention professionals who do not meet this eligibility criteria are encouraged to check back at that time.
NBPHE has developed requirements for eligibility to ensure that the application process is fair and impartial for all applicants. Each eligibility requirement has been established to ensure that individuals certified by NBPHE have an acceptable level of knowledge and proficiency needed to provide services expected of a CDI. Candidates must meet the following eligibility criteria:
To sit for the CDI Certification exam, an individual must have at least one year of experience as a disease intervention professional.
Activities that qualify as disease intervention experience for the purposes of the CDI include:
Performing case investigation interviews with people diagnosed with reportable infectious diseases for the purposes of identifying risk factors, eliciting contacts, and referring for appropriate services.
Collecting enhanced surveillance data through case investigations.
Contact tracing to identify, locate, notify, and refer people exposed to an infectious disease.
Conducting field investigations to locate people diagnosed with or exposed to an infectious disease for interview or notification.
Providing field-based testing and treatment services for reportable infectious diseases.
Conducting community outreach to provide infectious disease testing and treatment services in community settings.
Collaborating with medical providers for the management confirmed or suspected cases of infectious disease.
Conducting emergency preparedness activities for infectious disease prevention and control.
In addition to one year of disease intervention experience as defined above, candidates must complete a combination of education and other applicable experiences in community or health outreach as outlined below:
HIGH SCHOOL DIPLOMA/GED
+
Two years of applicable community experiences in counseling or health outreach.
ASSOCIATE DEGREE
+
One year of applicable community experience in counseling or health outreach.
BACHELORโS DEGREE OR HIGHER
No additional work experience required.
To verify eligibility candidates must submit the following documentation with their application:
HIGH SCHOOL DIPLOMA/GED
Copy of their student HS Diploma/GED certificate OR a letter from the school/institution indicating when and where they graduated/received their diploma/certificate.
Candidate must submit a resume that includes location and dates of employment for the relevant disease intervention and counseling or health outreach roles.
ASSOCIATE DEGREE
Candidate must submit a copy of the student transcript (official or unofficial) showing the degree conferral and date.
Candidate must submit a resume that includes location and dates of employment for the relevant disease intervention and counseling or health outreach roles.
BACHELORโS DEGREE OR HIGHER
Candidate must submit a copy of the student transcript (official or unofficial) showing the degree conferral and date.
Candidate must submit a resume that includes location and dates of employment for the relevant disease intervention role(s).
Calculation of Work Experience
The following criteria should be considered when calculating work experience:
Work experience should be equivalent to the required number of years of applicable experience and may be calculated based on less than full-time employment. For example, a part-time position of 20 hours per week for 4 years is equivalent to a full-time position of 40 hours per week for 2 years.
Experience can be acquired through formal paid employment or through voluntary activities such as AmeriCorps, unpaid internships, Peace Corp, or other volunteer work provided it meets the criteria listed below.
Disease Intervention Professional Experience
To meet the requirement of at least one year of experience as a disease intervention professional candidates must have experience in a role where they conduct activities including, but not limited to:
Person-centered interviews
Collection of enhanced surveillance and community assessment data
Contact tracing
Field specimen collection
Field investigation in outbreaks
Emergency preparedness
Community outreach
Collaboration with medical providers
Community Experience
To meet the required number of years of โcommunity experiences in counseling or health outreachโ the following skills or activities can be considered as applicable:*
Direct communication with a variety of populations in a community, clinical, or governmental setting.
Providing direct assistance to clients, patients, or other customers to apply for, utilize, or access medical and/or social services such as, but not limited to, SNAP, WIC, Medicaid, housing assistance, Ryan White programs.
Providing services directly to clients or patients such as medical testing, behavioral or risk-based counseling, intake assessment, medication adherence, case management, community or support group facilitation, health education, or wellness checks.
Assessing needs and assisting clients or patients with navigating access to medical and/or social services. This includes making direct referrals, assisting with scheduling appointments, and providing information about available resources.
Providing translation services in a community, clinical, or governmental setting.
Working with a variety of populations to identify needs, develop an action plan, and complete tasks that help the client or patient attain an individualized goal.
Interviewing clients or patients aligned with privacy guidelines to ascertain and record demographic, behavioral, sexual, psycho-social, medical, mental health, or other personal history.
Providing medical or social services in an outreach or non-traditional setting such as community centers, libraries, schools, mobile clinics, and places of worship.
Community engagement or outreach activities that include interfacing directly with members of the community about health-related topics such as, but not limited to, vaccination, nutrition, behavioral health, sexual health.
*Note: Additional years of experience as a DI Professional can be counted as applicable community experience.
This project is supported by the Centers for Disease Control and Prevention (CDC) under Cooperative Agreement No. NU50CK000612 awarded to the Association of Schools and Programs of Public Health (ASPPH) and subawarded to the National Board of Public Health Examiners (NBPHE) under funding opportunity CDCโRFAโCK20โ2003. The contents are those of the author(s) and do not necessarily represent the official views of, nor an endorsement by, CDC/HHS or the U.S. Government.
Thanks to our CDI volunteers, funders, and strategic partners in supporting the development of the Certified in Disease Intervention (CDI) Certification Program.
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