What Is A DICO-C?

What the Credential Actually Is

DICO-C is the abbreviation for Certified Designated Infection Control Officer. It is a specialty certification for emergency responders who serve, or are positioned to serve, as the person responsible for infection control inside a fire, EMS, law enforcement, or other public safety organization. If you have seen the same letters attached to other credentials in other fields, set those aside. This page, and this site, concern only the infection control officer credential.

The "C" at the end signals that the holder has earned certification by passing a standardized examination, rather than simply completing a course or being appointed to a position. That distinction matters in practice. An agency can name anyone its designated infection control officer, but the certification is an independent, third-party verification that the person understands the regulatory, clinical, and programmatic material the role demands.

For a deeper look at the wording of the credential, see our companion pieces on what DICO-C stands for and the meaning of DICO-C.

Who Issues It and Why It Exists

The credential is awarded by the International Board of Specialty Certification (IBSC) and was developed with the National Association of Public Safety Infection Control Officers (NAPSICO). The pairing is meaningful: IBSC supplies the certification infrastructure (exam administration, candidate handbook, recertification rules), while NAPSICO brings the subject-matter community of people who actually do this work in public safety agencies.

The reason a dedicated credential exists is that infection control in emergency response is not the same as infection control in a hospital ward. Responders face unpredictable exposures in vehicles, homes, and public spaces, often with limited information about the patient or subject. A designated officer has to translate federal and state requirements into practical agency policy, track vaccinations and exposures for personnel, and ensure that when an exposure does occur, the response is fast, documented, and medically sound.

The Designated Infection Control Officer Role

The certification targets a specific job function. A designated infection control officer in a public safety setting typically owns or contributes to the following responsibilities:

• Developing, maintaining, and updating the agency's exposure control plan
• Advising leadership on the legal obligations that apply to employee protection
• Coordinating vaccination and immunization programs for personnel
• Managing the workflow after a suspected exposure, including medical evaluation and follow-up
• Training responders on transmission risks, protective equipment, and decontamination practices
• Maintaining confidential records tied to exposures and medical follow-up

How the Exam Is Built

The DICO-C examination is computer-delivered and consists of four-option, single-best-answer multiple-choice questions. Many items are applied or scenario-based, meaning you are asked to choose the best action or interpretation in a realistic situation rather than recite a definition. The exam targets specialty-level knowledge, not entry-level training, so memorizing terminology alone will not carry you.

A common point of confusion is the passing score. The IBSC specifies 70 correct answers among the 100 scored items. You will not know which 25 questions are the unscored pilot items, so you should treat every question as if it counts. Do not calculate your result against all 125 questions administered. For a full breakdown, read our guide to the DICO-C passing score, and for a realistic sense of challenge, see how hard the DICO-C exam is.

The Five Content Domains

The exam blueprint is organized into five domains. The April 2026 candidate handbook is the primary blueprint reference, and IBSC also links a more detailed outline dated October 7, 2020. Weighting tells you where to invest your time, so study in proportion to it.

Notice that Domains 3 and 5 together equal 40%, and Domain 2 alone is 30%. Between them, those three domains account for 70% of the scored content. For a domain-by-domain walkthrough, see our complete guide to the five DICO-C content areas.

Eligibility and Registration

IBSC describes eligibility in terms of role: the candidate should be an emergency responder who works as, or has the potential to work as, an Infection Control Officer. Beyond that, you need an approved examination application and government-issued identification. The credential is not gated by a long list of hours or degrees in the way some certifications are, but remember that your employer may impose its own appointment requirements or course prerequisites. Those are separate from certification eligibility.

Provider details deserve careful attention. The April 2026 handbook specifies live remote proctoring through TesTrac, while certain IBSC and NAPSICO web pages also reference Prometric. The safest approach is to follow the provider and delivery modality stated in your own current IBSC authorization, because that is what governs your booking instructions. Our DICO-C requirements guide covers qualification in more depth, and DICO-C exam dates addresses scheduling.

Cost Mechanics

Pricing depends on whether you hold NAPSICO membership. All fees are in USD and nonrefundable, so confirm your readiness and your provider instructions before paying.

Those subtotals exclude membership dues, any applicable tax or shipping, courses, and retake fees. If you need to retest, you pay the full exam fee again. Because the member and nonmember fees differ by $100, compare that gap against the cost of joining before you register. A full itemization is available in our DICO-C certification cost breakdown.

What Exam Day Looks Like

The exam is closed-book and identity-checked. You may not use notes, books, outside assistance, or unauthorized electronics. Remote sessions are monitored by audio and video, so prepare a clear, compliant testing space ahead of time. On the positive side, the handbook permits you to move backward and forward through the exam and to change answers, which lets you flag difficult scenarios and return to them.

If you need an accommodation, request it early: accommodations require supporting documentation and approval, which takes time. Results are typically available within one hour according to the DICO-C FAQ, so you will not wait long to learn the outcome.

Validity and Recertification

A DICO-C is valid for three years. You can renew in one of two ways: retake the examination, or complete 18 directly relevant infection-control continuing education hours during the certification cycle, maintain eligibility, submit completion documentation for audit, and pay the renewal fee.

• Submit the CE-renewal application two to four months before your expiration date.
• Documentation submitted less than 30 days before expiration incurs a $125 processing fee.
• An expired credential cannot be renewed through CE; it requires re-examination.

The practical lesson is to log your CE hours as you earn them rather than reconstructing them at the deadline. Keep certificates and course records organized, since the documentation is subject to audit.

Where the Credential Fits in a Career

People pursue the DICO-C from several directions. Firefighters, paramedics, EMTs, law enforcement personnel, and other public safety staff may hold it, especially where their agency has assigned or is about to assign infection control duties. Agencies that benefit most are those with a defined exposure control program and personnel who face bloodborne or airborne exposure risks as part of their regular work.

On compensation, be realistic. Pay is driven primarily by your underlying emergency-response or healthcare role, your rank or grade, your region, and your employer's pay structure. The certification can demonstrate competence and may strengthen your candidacy for infection control assignments, but it should not be assumed to carry a built-in pay premium. For a measured look, read the DICO-C salary guide, the analysis of whether the certification is worth it, and our overview of DICO-C jobs.

Sequencing Your Preparation

You do not need an elaborate method here; you need to match effort to the blueprint. Because Exposure Control Plan Components is 30% of the scored content, it deserves the earliest and longest block. Laws come next in the sequence because regulatory language underpins several other domains and is easier to absorb before you hit scenario-heavy material.

Use scenario-based practice throughout, since the real exam favors applied judgment. Working through a DICO-C practice test reveals which domains need more attention, and our DICO-C study guide lays out resources in detail. A condensed reference like the DICO-C cheat sheet is useful in the final days. Keep in mind that the exam is closed-book, so rely on recall rather than reference materials as your test date approaches.

Frequently Asked Questions