Senate committee substitute makes the following changes to 3rd edition. Provides that pharmacy has the right to 14 (was, 21) days' notice of the initial on-site audit for each audit cycle. Provides that for audits conducted other than in response to an identified problem, the audit is limited to 100 (was, 40) selected prescriptions. Provides an exception to the one-audit-per-year limitation for cases where fraud or misrepresentation is reasonably suspected. Provides an exception to the provision that recoupments of disputed funds are to occur only after final internal disposition of an audit, including appeals, for cases where fraud or misrepresentation is reasonably suspected. Changes effective date of act's main provisions from October 1, 2011, to January 1, 2012.