Are file exclusions consolidated when multiple exclusion policies are applied?

Hi All,

I have broken down the exclusion policies for my servers into sub-policies to make it easier to identify what does what:

For example I have a policy for turning off the scanning of the SYSVOL files and a separate policy for Turning off the scanning of Windows Update files and so on.

If I apply say 6 policies with different exlusion lists to a server or group of servers, are the exclusions in all 6 policies applied or is it just the exclusions in the policy at the top that overrides the others?

Thanks

Jon