This website is scheduled to undergo routine maintenance on Saturday, 23 July from 5:00 p.m.-11:00 p.m. CDT. During this time, you may not be able to schedule, reschedule or cancel test appointments. We apologize for this inconvenience and thank you for your patience.
ICC has been split into different testing programs on our website. You will need to know the two digit exam code before you can register for your National Certification and UST/AST exam. Each testing program will require a unique username and password. View the current exams list for National Certification and UST/AST.
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Office Hours: Monday–Friday,
- Phone: 800-275-8301
- Email form: Ask a question
Office Hours: 9:00–18:00 CET (8:00–17:00 GMT) Monday–Friday; closed on local holidays.
- General: +44-161-855-7455 (toll)
Last updated 2016-07-08