There is a lot of information on internal audits and determining the frequency by performing a risk assessment. I haven't been able to find a discussion around the topic of having a corporate entity perform an internal audit for one of their plants. We have a corporate QA team that comes out for 3 days to our facility and conducts an audit that is based on the BRC standard. For the areas that are under an annual review, could this be considered our internal audit? We would then have a plant based internal audit team that is reviewing the areas that require more frequency (i.e. quarterly). I appreciate the input!