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.07
If the accounting treatment of a transaction or event is not specified by a pronouncement covered by rule 203 [ET section 203.01], the auditor should consider whether the accounting treatment is specified by another source of established accounting principles. If an established accounting principle from one or more sources in category (b), (c), or (d) is relevant to the circumstances, the auditor should be prepared to justify a conclusion that another treatment is generally accepted. If there is a conflict between accounting principles relevant to the circumstances from one or more sources in category (b), (c), or (d), the auditor should follow the treatment specified by the source in the higher category—for example, follow category (b) treatment over category (c)—or be prepared to justify a conclusion that a treatment specified by a source in the lower category better presents the substance of the transaction in the circumstances.