Remote branch cash audits

For those credit unions that have multiple branches, how often do you perform a cash audit of the vault?  Until recently, all our branches were local and it wasn't an issue.  Now we have acquired one branch over two hours away and are possibly looking at other state-wide branches.  How are the cash audits handled in credit unions like this?  Frequency and who performs the audit is my initial focus, howerver, if there are things to consider I may not be aware of since this is new for us, please feel free to let me know.Thanks for all your help!