Office hours
Monday–Friday, 7:00 a.m.–7:00 p.m. CT; closed on local holidays.
Telephone numbers
- 877-404-EXAM / 877-404-3926 (toll-free)
- +1-312-312-5486 (toll)
For Americans with Disabilities Act (ADA) accommodations:
- United States / Canada only: 800-466-0450
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