Following the enactment of the Sarbanes-Oxley Act of 2002, the Public Company Accounting Oversight Board (PCAOB) was established in order to monitor, regulate, inspect, and discipline audit and public accounting firms of public companies. The PCAOB Auditing Standards No. 2 now requires auditors of public companies to include an additional disclosure in the opinion report regarding the auditee's internal controls, and to opine about the company's and auditor's assessment of the company's internal controls over financial reporting. These new requirements are commonly referred to as the COSO Opinion.