It seems to me that this should be fine. Only adsense-support@google.com can say for certain, and even they contradict themselves frequently.
It is what I am doing. All of my sites reference the privacy policy on my companies web site.
Here's what the Google AdSense Program Policies say:
AdSense publishers must have and abide by a privacy policy that discloses that third parties may be placing and reading cookies on your users' browser, or using web beacons to collect information as a result of ad serving on your website.
Learn more about preparing your privacy policy.
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