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Email Directory
General Enquiries
Assessment & Examinations
Certification
Approved Training Providers (ATP)
Corporate Membership
Complaints & Appeals
Registered Office
United States of America
Auditor Certification Institute
1700 K Street NW, Suite 740
Washington, DC 20006
United States
Office Hours
Monday to Friday
09:00 — 17:00 ET
Saturday & Sunday
Closed
Response Times

We aim to respond to all enquiries within one working day.

For urgent examination issues please email directly.

Complaints are acknowledged within 2 working days and resolved within 20 working days.

Specific Enquiries

Contact the Right Team

For faster responses, contact the relevant department directly.

Certification

Applications, grades, schemes, exam results, and certification decisions.

Assessment

Examinations, assessments, results, and invigilation queries.

Training Providers

ATP applications, course approvals, accreditation, and trainer queries.

Corporate

Endorsed employer programme, team dashboards, and corporate membership.

General Enquiries

All other questions, media requests, and partnership enquiries.

Complaints & Appeals

Formal complaints, appeals, and concerns about ACI services or personnel.

Looking for Quick Answers?

Many common questions are already answered in our FAQ section. Check there first for instant answers.