[The following paragraph of AS 4101, amended to read as follows, will be effective for audits of fiscal years ending on or after December 15, 2017. See PCAOB Release No. 2017-001. The current standard can be found here.]

.11     A registration statement filed with the Securities and Exchange Commission may contain the reports of two or more independent auditors on their audits of the financial statements for different periods. An auditor who has audited the financial statements for prior periods but has not audited the financial statements for the most recent audited period included in the registration statement has a responsibility relating to events subsequent to the date of the prior-period financial statements, and extending to the effective date, that bear materially on the prior-period financial statements on which he reported. Generally, he should

  1. Read pertinent portions of the prospectus and of the registration statement.
  2. Obtain a letter of representation from the successor independent auditor regarding whether his audit (including his procedures with respect to subsequent events) revealed any matters that, in his opinion, might have a material effect on the financial statements reported on by the predecessor auditor or would require disclosure in the notes thereto.

The auditor should make inquiries and perform other procedures that he considers necessary to satisfy himself regarding the appropriateness of any adjustment or disclosure affecting the prior-period financial statements covered by his report (see AS 3105, Departures from Unqualified Opinions and Other Reporting Circumstances).

[Effective pursuant to SEC Release No. 34-81916, File No. PCAOB-2017-01 (October 23, 2017)]