This letter provides the U.S. Government Accountability Office's (GAO) comments on the American Institute of Certified Public Accountants (AICPA) Auditing Standards Board's (ASB) proposed Statement on Standards for Attestation Engagements (SSAE) on audit considerations relating to reporting on controls at a service organization. Generally, we support the proposed statement and the related proposed Statement on Auditing Standards. We believe that addressing the needs of service and user auditors and their respective clients separately adds much-needed clarity in this area of practice.