5) To develop the controls Sarbanes-Oxley requires, CPAs need to be able to identify key control exceptions. They also must correctly apply a familiar concept—materiality. The Sarbanes-Oxley Act of 2002 has put demands on management to detect and prevent material control weaknesses in a timely manner. To help management fulfill this responsibility, CPAs are creating monthly key control processes to assess and report on risk. When management finds a key control does not meet the required minimum quality standard, it must classify the result as a key control exception. CPAs need to be able to identify key control exceptions and apply materiality to determine their financial impact. For many years accountants have used quantitative estimates to help them identify potentially material transactions and events. Working materiality levels or quantitative estimates