Simone den Duyn earned the IBBFA Certified Barre Instructor credential in July 2018. Simone den Duyn is based in North Nowra, New South Wales, Australia. The credential status is currently Lapsed (expired July 2026). The credential itself remains valid but Active status has not been maintained. Simone den Duyn holds 2 IBBFA specialty certifications: Advanced Barre and Special Populations & Contraindications. Verify at ibbfa.org/verify.
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The Certified Barre Instructor (CBI) is issued by IBBFA — the International Ballet Barre Fitness Association, the professional credentialing authority for barre fitness instruction since 2008. CBI candidates must pass a 60-question written examination drawn from a 300-question bank and complete a live practical evaluation with an IBBFA Master Instructor proctor. The CBI curriculum covers anatomy and physiology, barre technique fundamentals, class design and sequencing, cueing and communication, safety protocols, and scope-of-practice guidelines. Credentials are publicly listed in the IBBFA registry and can be verified independently at ibbfa.org/verify/.
