[The following paragraph of AS 1205 was effective for audit reports issued between December 31, 2016, and June 30, 2017. The current standard can be found  here.]

.04        If the principal auditor is able to satisfy himself as to the independence and professional reputation of the other auditor (see paragraph .10) and takes steps he considers appropriate to satisfy himself as to the audit performed by the other auditor (see paragraph .12), he may be able to express an opinion on the financial statements taken as a whole without making reference in his report to the audit of the other auditor. If the principal auditor decides to take this position, he should not state in his report that part of the audit was made by another auditor because to do so may cause a reader to misinterpret the degree of responsibility being assumed.