Final answer:
The PCI SSC is responsible for accepting validation documentation from QSAs, PA-QSAs, and ASVs, as they establish security standards and manage certifications.
Step-by-step explanation:
The entity responsible for accepting validation documentation from QSAs, PA-QSAs, and ASVs is the PCI SSC (Payment Card Industry Security Standards Council).The entity responsible for accepting validation documentation from Qualified Security Assessors (QSAs), Payment Application-QSAs (PA-QSAs), and Approved Scanning Vendors (ASVs) is the PCI SSC (Payment Card Industry Security Standards Council). The PCI SSC's role includes establishing security standards and accrediting companies and individuals to assess compliance with the Payment Card Industry Data Security Standard (PCI DSS).
Payment brands are not responsible for accepting validation documentation, rather, they enforce compliance and may apply penalties for non-compliance. QSAs, PA-QSAs, and ASVs are certified by the PCI SSC to perform security assessments, but do not accept validation documents themselves. Additionally, QIR refers to Qualified Integrators and Resellers, which are endorsed by the PCI SSC to implement, configure, and/or support payment systems, but are also not involved in accepting validation documentation.