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Need help? Contact the ACS Member Services team.
- Email: service@acs.org
- Phone: 1-800-333-9511 (Toll Free in the US)
- Phone: 614-447-3776 (Outside of the US)
- Fax: 614-447-3671
Calls are answered Monday through Friday (except holidays) from 8:30 am to 5:00 p.m. Eastern Time