The audit time period only begins when all of the controls are in place and all facets of knowledge security are accomplishing as intended. The business finalizes the CPA company or independent auditors and in collaboration, they come to a decision the beginning date plus the period from the audit https://www.nathanlabsadvisory.com/blog/nathan/how-to-achieve-pci-dss-compliance-certification-in-the-usa-quickly/