What Is CSSD?

What CSSD Actually Means

CSSD stands for Certified Specialist in Sports Dietetics. The issuer's formal label is Board Certified Specialist in Sports Dietetics. It is an advanced specialty credential for registered dietitians (RDs) who work with athletes and active populations, and it signals that the holder has documented substantial practice experience in the field and passed a standardized, psychometrically developed examination.

Two points of clarity matter from the start. First, CSSD is not an entry-level credential: you cannot hold it without already being an RD with considerable sports-specific work behind you. Second, it is a specialty layered on top of the RD credential, not a replacement for it. If you are looking for related explanations of the term itself, our pages on what CSSD stands for and the meaning of CSSD cover the vocabulary, while this article focuses on how the credential works in practice.

Who Issues It and Who Qualifies

The credential is issued by the Commission on Dietetic Registration (CDR), the credentialing agency of the Academy of Nutrition and Dietetics. CDR also administers the RD credential itself and several other board certifications for specialists. Exams are delivered through Pearson VUE test centers on a year-round computer-based basis, so there is no single annual exam date to plan around.

To be eligible you must hold current RD status with CDR, and that status must have been maintained for at least two years. Beyond that, the heart of eligibility is documented sports dietetics experience, covered next. For a fuller walkthrough of prerequisites, see our CSSD requirements guide.

The Practice-Hours Requirement in Detail

This is the part of CSSD that most distinguishes it from credentials you can earn by studying alone. You must be able to document the following:

• Initial certification: 2,000 hours of sports dietetics practice as an RD within the five years preceding your application.
• Standard recertification: 1,500 hours within the five years of the certification cycle.
• Substitutions: Approved education and professional substitutions may cover at most 500 hours.
• No double counting: A degree used to satisfy hours for initial certification cannot be reused toward recertification.
• Verification: Specialty hours require verification, so keep records of employers, roles, and the nature of the sports work performed.

Hours must be specifically sports dietetics work. General clinical or community nutrition experience does not automatically count, so it is worth reviewing the official eligibility page and the current handbook before assuming a particular role qualifies.

What the Exam Looks Like

The CSSD exam is a closed-book, computer-based test with a clear and fairly simple structure:

The "one best answer" style matters. Several options may be partially defensible, and the task is to choose the most appropriate recommendation for the scenario described. Expect questions that ask you to apply sports nutrition knowledge to a case rather than simply recall a fact. An erasable note board is provided, which is useful for working through energy-availability, fluid-loss, or macronutrient-per-kilogram calculations. A handheld test-center calculator may be available on request.

Unscheduled breaks count against your testing time, so plan to manage the three hours as a continuous block. To gauge how demanding this format feels in practice, read how hard the CSSD exam is.

The Three Exam Domains

The exam is built from the CDR CSSD Examination Content Outline (the currently linked version is effective November 2023). It organizes content into three domains, with official scored-item counts that total 125. These are published as item counts, not percentage weights, and we keep them that way here.

Note the shape of the exam: Domains 1 and 2 together account for 105 of the 125 scored items. The supporting job analysis behind the content outline is published by CDR as a summary report. For a deeper breakdown with sample topics, see our complete guide to the three CSSD content areas.

Registration, Fee, and Test-Day Mechanics

The process runs through CDR and Pearson VUE:

1. Confirm eligibility: Verify RD status and gather documentation of your sports dietetics hours.
2. Apply through CDR: Submit your eligibility application with verified specialty hours.
3. Receive authorization: Once approved, you are authorized to test.
4. Schedule with Pearson VUE: The $350 exam fee is payable when you schedule.
5. Test: Arrive for your appointment, complete the 20-minute tutorial, and take the 150-question exam.

If you do not pass, the ordinary retest interval is 60 days, and reauthorization is required before you can test again. The Specialist Certification Candidate Handbook (2026-2027) is the operational source for these rules, and you should read it before scheduling. For the full cost picture beyond the exam fee, see our CSSD certification cost breakdown, and for scheduling logistics see CSSD exam dates and scheduling.

What the Published Pass Data Shows

CDR publishes pass/fail statistics for the CSSD exam. The latest unambiguously dated reporting period we use here is July through December 2025:

The passing standard is set through an Angoff passing-point study with statistical equating across exam forms. That means there is no fixed percentage you must reach, and different forms are adjusted so that the standard is comparable. Our pages on the CSSD passing score and CSSD pass rate go further into how to interpret this.

Staying Certified: The Five-Year Cycle

CSSD is not a one-time achievement. Standard renewal runs on a five-year specialist cycle, and requires you to:

• Maintain your RD status
• Submit an eligibility application documenting 1,500 sports specialty hours within the preceding five years (with permitted substitutions)
• Pay the fee
• Pass the specialist exam again

The Longitudinal Assessment Pilot

CDR has also run a separate 2026-2028 longitudinal-assessment pilot as an alternative to the traditional renewal exam. It is restricted to eligible CSSDs whose certification expires between January 31, 2029 and June 30, 2030. Participants complete successful quarterly assessments over three years instead of sitting the renewal exam, maintain RD status, document 1,000 specialty hours within the preceding five years, and pay $350. Successful completion earns 75 CPEUs toward RD maintenance.

Two cautions apply. The published opt-in deadline was January 1, 2026, so having an eligible expiration date does not by itself mean enrollment is still open; check CDR directly. And the pilot's reduced hours do not apply to initial certification or ordinary exam-based renewal.

Where CSSDs Work

CSSDs work wherever athletes and active populations need credentialed nutrition expertise. Typical settings include:

• Collegiate athletics: Sports dietitians embedded in athletic departments, often serving multiple teams
• Professional and Olympic sport: Team and national-governing-body roles with elite performance staff
• Military and tactical populations: Performance nutrition for service members and first responders
• Clinics and hospitals: Sports medicine and performance clinics treating injured or disordered-eating athletes
• Private practice and consulting: Working with recreational and competitive athletes, teams, and organizations
• High schools, fitness facilities, and industry: Education, programming, and product or corporate wellness roles

Employers vary in whether they require or merely prefer the credential, and postings differ widely, so we avoid generalizing about it. Our pages on CSSD jobs, the CSSD salary guide, and whether the CSSD is worth it take up the career side in more depth.

Sequencing Your Preparation Around the Domains

CDR does not endorse any particular preparation product, and its suggested-reference list (updated November 2025) is a suggestion, not a guarantee of coverage or success. Within that, the most useful decision is the order in which you tackle the domains. One reasonable arrangement, assuming a roughly six-week runway, looks like this:

For a fuller plan, see our CSSD study guide and the condensed CSSD cheat sheet. When you are ready to test your recall under realistic conditions, use the CSSD practice test to drill questions in the same one-best-answer style.

Frequently Asked Questions