If the "AZMATH" refers to Arizona-specific reporting, state law (A.R.S. § 18-552) dictates how organizations must act:
Submitting the official Data Breach Notification Form to the Attorney General. You Ma Be Breached – AZMATH
Did you receive a or email with this subject? Are you trying to report a breach for a company? If the "AZMATH" refers to Arizona-specific reporting, state