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Castle Testing Registration

Registering & Scheduling an Exam with Castle

Candidates are directed to schedule appointments through the Castle website ( If a candidate calls the Ozarks Technical Community College (OTC) testing center to register/schedule we will refer him or her to one of the resources below.

Castle candidates can register and schedule by:

1. Visiting the Castle website,
2. By calling the Castle Call Center. Candidates can phone the call center at 1-919-361-2426 (toll free) Monday through Friday, 8:30 a.m. to 5:30 p.m. eastern standard time.
*Students must pay all fees through Castle at time of registration.

Bring with you on exam day:
1. A valid ID
One primary ID: Passport, valid driver’s license, state/province ID, military issued id.
*We do not accept expired identification.
2. Email from

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