[The following paragraph was effective for audits of periods beginning on or after January 1, 1990. It was amended by PCAOB Auditing Standard No. 2, effective for audits of fiscal years ending on or after November 15, 2004, for accelerated filers, and on or after July 15, 2005, for all other issuers. See PCAOB Release No. 2004-008.

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AU 319.107

Although the inverse relationship between control risk and detection risk may permit the auditor to change the nature or the timing of substantive tests or limit their extent, ordinarily the assessed level of control risk cannot be sufficiently low to eliminate the need to perform any substantive tests to restrict detection risk for all of the assertions relevant to significant account balances or transaction classes. Consequently, regardless of the assessed level of control risk, the auditor should perform substantive tests for significant account balances and transaction classes.

Copyright © 2002, American Institute of Certified Public Accountants, Inc.