An Attestation of Compliance (AOC) is an official declaration used by merchants and service providers to attest that they have fully completed the required assessments and are currently compliant with the Payment Card Industry Data Security Standard (PCI DSS).
The Role of the AOC in PCI Compliance
While the Self-Assessment Questionnaire (SAQ) contains the actual security questions a merchant must answer, the AOC is the formal "cover letter" or summary document that verifies the assessment's results. Acquiring banks require merchants to submit an updated AOC annually to prove they are safeguarding cardholder data.
The Chaos of Manual Document Tracking
Collecting and verifying AOCs, SAQs, and external vulnerability scans for thousands of merchants across different submission channels creates massive cross-departmental delays. Missing an expired AOC can result in severe non-compliance fines.
Centralized Document Management with Onlayer
Onlayer consolidates all SAQs, AOCs, and ASV reports into one unified dashboard, regardless of the submission channel. By tracking document submission status, validity, and expiration dates in real time, Onlayer reduces cross-department document retrieval delays by up to 70% and drives up to an 85% increase in completed compliance document submissions portfolio-wide.
Here is the third batch of 10 fully formatted, SEO-optimized glossary terms (31-40). I have seamlessly woven in more of Onlayer’s specific capabilities, such as automated entity correlation, KYB (Know Your Business), and portfolio-wide compliance tracking.


